solstice ILHP2-1023 Inverter Extreme Air To Water Heat Pump Instruction Manual

solstice ILHP2-1023 Inverter Extreme Air To Water Heat Pump

Product Information

Specifications:

• Model: ILAHP2-1023
• Product Name: ILAHP Inverter Extreme Low Ambient Air-to-Water Heat Pump
• Installation and Operation Manual

Introduction:

The ILAHP Inverter Extreme Heat Pump is designed to provide efficient heating and cooling using inverter compressor technology. It offers advanced controls for precise temperature management and easy installation with a monobloc configuration.

Product Usage Instructions

Section 1: Hazard Definitions

The manual provides hazard definitions to ensure safe operation of the product. It categorizes potential hazards and important information related to the product.

Section 2: Installation

Proper installation is crucial for optimal performance. Ensure to choose the correct heat pump installation location, establish water loop connections, make electrical connections, and follow control input/output connections. Pay attention to dimensions and required clearances for installation.

Section 3: Glycol/Water System

All air-to-water heat pump installations require Propylene Glycol or Ethylene Glycol freeze protection in the hydronic circuit. Refer to the recommended concentration for your region and ensure proper installation to prevent freezing and potential component failure.

Section 4: Wiring

This section covers control wiring connections with detailed diagrams and definitions for easy understanding and proper setup.

Section 5: Remote Touchscreen Display

Learn about the overview of the remote touchscreen display, electrical system diagram, display windows, and functions for efficient operation.

Section 6: Parameters

Understand the parameters of the ILAHP Inverter Extreme Heat Pump for effective customization based on specific operating requirements.

Section 7: Troubleshooting

If issues arise, refer to the troubleshooting section for guidance on identifying and resolving common problems that may occur during operation.

Section 8: Replacement Parts

In case of replacement needs, refer to the section listing replacement parts for the ILAHP Inverter Extreme Heat Pump.

Warranty

Details on warranty coverage and registration information are provided for customer reference.

FAQs

• Q: Do I need to use Propylene Glycol or Ethylene Glycol in the system?
  • A: Yes, all air-to-water heat pump installations require some level of freeze protection using Propylene Glycol or Ethylene Glycol to prevent freezing and potential component failure.
• Q: How can I adjust the operating requirements of the heat pump?
  • A: The ILAHP Inverter Extreme Heat Pump features advanced controls managed by a parametric microprocessor that allows on-site adjustment to match specific operating requirements.

Click or Scan for Warranty Registration
IN UNITED STATES: 260 NORTH ELM ST. WESTFIELD, MA 01085 800-465-8558 IN CANADA: 7555 TRANMERE DRIVE, MISSISSAUGA, ONTARIO, L5S 1L4 905-670-5888

ILAHP Inverter Extreme Air-to-Water Heat Pump

SECTION 1:

INTRODUCTION

Read Before Proceeding
Hazard Definitions
The following terms are used throughout this manual to bring attention to the presence of potential hazards or to important information concerning the product.
Indicates an imminently hazardous situation, which if not avoided, WILL result in death, serious injury or substantial property damage.
Indicates an imminently hazardous situation, which if not avoided, COULD result in death, serious injury or substantial property damage.
Indicates an imminently hazardous situation, which if not avoided, MAY result in minor injury or property damage.
Used to notify of special instructions on installation, operation or maintenance, which are important to equipment, but not related to personal injury hazards.
Failure to comply with these recommendations will void the warranty.
ALL air-to-water heat pump installations require some level of Propylene Glycol or Ethylene Glycol freeze protection in the hydronic circuit.
Refer to the graphic in Section 3 for the recommended concentration in your region. However, in all cases it is the responsibility of the contractor to ensure that sufficient freeze protection has been installed to prevent freezing under all conditions. Heat exchanger rupture or other component failure due to freezing is not covered under the manufacturer’s warranty.

Benefits and Features
Inverter Compressor
ILAHP Inverter Extreme Heat Pump uses Inverter technology to precisely match the heating or cooling load.
Advanced Controls Unit function is managed by a parametric microprocessor allowing on site adjustment to match specific operating requirements.
Easy Installation The monobloc configuration keeps all refrigerant outdoors with no refrigeration connection or handling done on site. Only the water/antifreeze mixture is plumbed indoors.
Quiet Operation The insulated housing, advanced fan profile, and variable speed fan and compressor all combine to achieve a low noise level of 47dBA to 57dBA @ 3 meters.
Efficient Energy Transfer ILAHP Inverter Extreme heat pump is equipped with high efficiency, large surface area energy exchangers for both the air to refrigerant heat transfer and the refrigerant to water energy transfer.
Low Ambient Temperature Cooling Operation ILAHP Inverter Extreme heat pump is capable of operating in cooling mode in ambient temperatures as low as 5°F.
Enhanced Vapor Injection Compressor and refrigeration system are optimized for efficient and powerful heating performance in ambient temperatures as low as -22°F (-30°C).
Outdoor Coils Outdoor coils have been tested in accordance with GB/T 2432.17 salt spray test.

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ILAHP Inverter Extreme Air-to-Water Heat Pump

Specification

Cooling Heating
CEC Data
Electrical Refrigerant Fan Sound @ 3 ft/1 m Hydronic Compressor Dimensions

Capacity Range Efficiency Range Efficiency Delivered Water Temp Range Ambient Temp Range Capacity Range Efficiency Range Delivered Water Temp Range Ambient Temp Range Cooling Capacity Cooling Efficiency Heating Capacity Heating Efficiency Heating Capacity Heating Efficiency Power Fan Motor Compressor Motor MCA MOPD SCCR Type Factory Charge Quantity Power Input Type Max Speed Range Rated Flow Max Water Temp Piping Connections Rated Pressure Drop @ Rated Flow Type Speed Range Brand Quantity Net Dimensions (W x D x H) Shipping Dimensions (W x D x H) Net Weight Shipping Weight

Units BTU/hr (kW)
EER IPLV °F (°C) °F (°C) BTU/hr (kW) COP °F (°C) °F (°C) BTU/hr (kW) EER BTU/hr (kW) COP BTU/hr (kW) COP V/Ph/Hz
A A A A kA
lbs. (kg)
W
RPM dBA GPM °F (°C) inch (cm) PSI (ft W.C.)
Hz
inch (cm) inch (cm) lbs. (kg) lbs. (kg)

CEC is California Energy Commission. Data is tested in accordance with AHRI 550/590 = 44°F LWT 54°F EWT @10 GPM & 95°F DB Ambient = 120°F LWT 107°F EWT @10 GPM & 47°F DB Ambient = 120°F LWT 110°F EWT @10 GPM & 17°F DB Ambient

ILAHP
24,226-63,466 (7-19) 7.26-10.41 18.4 42-77 (6-25)
5-109 (-15-43) 15,354-63,807 (5-19)
1.64-5.41 59-130 (15-55) -22 – 109 (-30-43)
45,424 (13) 8.59
53,214 (16) 2.78
36,903 (11) 1.82
230/1/60 .8 (2) 30 45 50 10 R410a
6.2 (2.8) 2 75 EC
750 47-57
12 130 (55) 1-1/4 NPT (3.2) 12.8 (29.5) Rotary Inveter, EVI
30-90 Toshiba
1 39 x 16 x 52 (99 x 41 x 132) 42 x 17 x 53 (107 x 43 x 135)
349 (158) 388 (176)

ILAHP Air-to-Water Heat Pumps modulate capacity based upon outlet water temperature. Temperatures shown above are delivered water temperature. Refer to the following performance charts to see the expected.

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ILAHP Inverter Extreme Air-to-Water Heat Pump
ILAHP Heating Performance
(all data based on pure water and rated flow)

Heating Capacity, BTU/hr

ILAHP, 100°F Delivered Water Temperature, BTU/hr, Heang
65000

60000

55000

50000

45000

40000

35000

30000

25000

20000

15000

-25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Ambient Temperature, °F

Maximum Capacity

Minimum Capacity

COP

ILAHP, 100° Delivered Water Temperature, COP, Heang

5.0

4.8

4.6

4.4

4.2

4.0

3.8

3.6

3.4

3.2

3.0

2.8

2.6

2.4

2.2

2.0

-25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Ambient Temperature, °F

Maximum Capacity

Minimum Capacity

Heang Capacity, BTU/hr

ILAHP, 120°F Delivered Water Temperature, BTU/hr, Heang
60000

55000

50000

45000

40000

35000

30000

25000

20000

15000

10000 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Ambeint Temperature, °F

Maximum Capacity

Minimum Capacity

COP

ILAHP, 120°F Delivered Water Temperature, COP, Heang

3.9

3.7

3.5

3.3

3.1

2.9

2.7

2.5

2.3

2.1

1.9

1.7

1.5 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Ambient Temperature, °F

Maximum Capacity

Minimum Capacity

Heang Capacity, BTU/hr

ILAHP, 130°F Delivered Water Temperature, BTU/hr, Heang
60000

55000

50000

45000

40000

35000

30000

25000

20000

15000

10000

-25 -20 -15 -10 -5

0

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Ambient Temperature, °F

Maximum Capacity

Minimum Capacity

COP

ILAHP, 130°F Delivered Water Temperature, COP, Heang
3.5

3.3

3.1

2.9

2.7

2.5

2.3

2.1

1.9

1.7

1.5

-25 -20 -15 -10 -5

0

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Ambient Temperature, °F

Maximum Capacity

Minimum Capacity

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ILAHP Inverter Extreme Air-to-Water Heat Pump
ILAHP Cooling Performance
(all data based on pure water and rated flow)

Cooling Capacity, BTU/hr

65000 60000 55000 50000 45000 40000 35000
80

ILAHP, 45°F Delivered Water Temperature, BTU/hr, Cooling

85

90

95

100

105

110

Ambient Temperature, °F

Maximum Capacity

Minimum Capacity

EER

10.5 10 9.5 9 8.5 8 7.5 7 80

ILAHP, 45°F Delivered Water Temperature, EER, Cooling

85

90

95

100

105

110

Ambient Temperature, °F

Maximum Capacity

Minimum Capacity

Cooling Capcity, BTU/hr

65000 60000 55000 50000 45000 40000
80

ILAHP, 48°F Delivered Water Temperature, BTU/hr, Cooling

85

90

95

100

105

110

Ambient Temperature, °F

Maximum Capacity

Minimum Capacity

EER

10.5 10 9.5 9 8.5 8 7.5 80

ILAHP, 48°F Delivered Water Temperature, EER, Cooling

85

90

95

100

105

110

Ambient Temperature, °F

Maximum Capacity

Minimum Capacity

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ILAHP Inverter Extreme Air-to-Water Heat Pump
Typical System Diagram
Basic Heat Pump Installation
Heat Pump Installation with Auxiliary Back-Up Heat
Heat Pump Installation with Domestic Hot Water Offset
*Autofill system is suggested but not required by SpacePak. If such installation is desired or required by local code, the Autofill MUST draw from a reservoir of pre-mixed glycol/water solution. Filling directly from a well or municipal water source may introduce contaminants and will dilute the glycol solution in the event of a system leak. This may impact warranty coverage.
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ILAHP Inverter Extreme Air-to-Water Heat Pump

SECTION 2:

INSTALLATION

Choose the Correct Heat Pump
Perform appropriate load calculation to determine required heating or cooling load for the project. Refer to specifications in this manual to determine proper size heat pump.

Installation Location
· ILAHP heat pump must be installed outdoors, in a location capable of supporting the full weight, plus any potential snow load. The outdoor unit must be secured to the support with sufficient hardware to withstand any potential wind or seismic conditions without shifting or tipping. Additionally, the outdoor unit should be installed with enough clearance to allow for condensate roll-off during the defrost cycle. This will prevent freezing under the unit during defrost.
· The heat pump should be located away from sources of heat or moisture such as combustion vents, dryer vents, building exhausts, etc.
· Because the ILAHP uses ambient air as a heat source or sink, the performance is affected by the altitude of the installation. Refer to the table below for the approximate multiplier to apply to the capacity and efficiency due to the altitude.

Elevation above Sea Level

Feet 0
500 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 14000

Meters 0
152 305 610 914 1219 1524 1829 2134 2438 2743 3048 3353 3658 3962 4267

Effect on Cooling

Capacity EER or COP

1.00

1.00

1.00

0.99

0.99

0.98

0.98

0.95

0.97

0.93

0.96

0.90

0.95

0.88

0.95

0.86

0.94

0.84

0.93

0.82

0.92

0.80

0.91

0.78

0.90

0.76

0.89

0.74

0.89

0.72

0.88

0.70

Effect on Heating

Capacity EER or COP

1.00

1.00

0.99

1.00

0.98

0.99

0.96

0.98

0.94

0.97

0.91

0.96

0.89

0.95

0.87

0.95

0.86

0.94

0.84

0.93

0.82

0.92

0.80

0.91

0.78

0.90

0.77

0.89

0.75

0.89

0.73

0.88

· Proper clearances shown on following pages must be respected.

Water Loop Connection
Please read below for water piping instructions:
· The piping must be clean and free from dirt. Prior to insulating the pipe, it is suggested that a leak test be performed to ensure no water leaks are present.
· The system must be supplied with a pump sized to provide the minimum flow rate specified in the Glycol/Water System Design section of this manual. Pump selection must consider the pressure loss through the plumbing system and its components, plus the pressure loss through the Heat Pump’s internal heat exchanger. The pump must be rated for the full range of heated or chilled water temperatures, as well as any anti-freeze or corrosion inhibitor additives.
· The piping system should have a wye strainer installed, on the inlet side, that is sized properly for the anticipated flow rate and pressure drop for the application. This will help protect internal components of the heat pump against sediments, contaminants and fouling that could damage the unit
· Do Not use the heat pump for DIRECT heating of potable water. The heat exchanger and internal components are not suitable for this application.

· Do not use the heat pump to DIRECTLY heat or chill pool water, open process water, untreated well or municipal water, or any working fluid other than aqueous Ethylene Glycol or Propylene Glycol solution circulating in a sealed, pressurized, and oxygen free system.
Never expose the ILAHP Hydronic circuit to pressures in excess of 30 PSI. Loss of coolant, property damage, or equipment damage may result.
· The total system must be protected with a Pressure Relief Valve or valves sized to protect the system component with the lowest pressure rating. In no instance shall this exceed 30PSI.
It is the responsibility of the installing contractor to ensure that sufficient Propylene Glycol concentration is maintained in the hydronic circuit to provide freeze protection in all foreseeable conditions. Failure to do so voids the warranty and damage caused by freezing is not covered.
Electrical Connections
ILAHP Heat Pump must be connected to an individual 230V (220V-240V) circuit, sized and protected according to the Minimum Circuit Ampacity and Max Overload Protection ratings specified on the rating label affixed to the exterior of the unit.
The power connection must include a Protective Earth Ground and a properly sized Neutral as two separate conductors in accordance with National Electric Code and all local codes.
When using the ILAHP as a single standalone heat pump called on by external inputs, (Thermostat, SSIC, Zoning controller etc.) the voltage free wiring should be connected according to the Field Wiring Diagram, to the terminals listed below.
Control Input connections
Important: All of the inputs are for voltage free relay contacts. No voltage should ever be introduced to these inputs. Doing so will immediately destroy the control and such damage will not be covered under warranty.
Remote On/Off is a master unit enable. This must be closed for all unit operation. This connection is located at the power input panel at the front of the unit.
Heat/Cool On/Off is the input for space conditioning. This must be closed for operation in either Heating or Cooling mode. This connection at the power input panel at the front of the unit.
Remote Heat/Cool is the space conditioning mode selection. Open results in Cooling operation, Closed results in Heating operation. This connection is located at the power input panel at the front of the unit.
DHW On/Off enables the Domestic Hot Water mode. When the contacts are closed, the ILAHP Control monitors the (potable) Domestic Water temperature and automatically changes over to maintain the DHW temperature according to the parameters selected. This connection is located in the electrical compartment under the top cover.
TT input is from a 10kW thermistor sensor monitoring the DHW Tank Temperature. This connection is located in the electrical compartment under the top cover.

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ILAHP Inverter Extreme Air-to-Water Heat Pump

Control Output Connections
Circulation Pump provides line to neutral power (110-120VAC) or Line to Line (220-240V) of up to five amps to operate the primary circulator between the heat pump and the buffer tank. This is switched by the ILAHP control according to the selected parameters. This connection is located at the power input side access panel.
The electrical loads given in the Specification Table, allow for a pump load of no more than 5 amps and 110 VAC (2.5 amps at 230 VAC). If the pump load exceeds this, provide a separate power source to the pump. DO NOT feed power to the pump from the SpacePak air handler panel.
If the circuit is turned on remotely, it must still have the ability to operate for the unit’s freeze protection or the warranty will be void.
If the circulator is controlled by an external source, it must still respond to a call from the heat pump, in order to allow to operate for the unit’s freeze protection. Disabling this will void the unit warranty.
110V/60 Hz 3 Way Valve provides line to neutral power (110120VAC) of up to five amps to operate a Three way Valve. This is energized when the ILAHP control changes over to DHW operation. This connection is located in the electrical compartment under the top cover.
110V/60 Hz Hot Water Pump provides line to neutral power (110-120VAC) of up to five amps to operate the circulator on the Secondary (Potable) side of the DHW heat exchanger. This is energized when the DHW operation is active. This connection is located in the electrical compartment under the top cover.
AUX Output provides two staged relay contacts capable of switching 24 to 240VAC at a low current to operate a contactor which engages electric, or any supplemental heat source, according the selected parameters. This connection is located at the power input side access panel. The staging logic is controlled by Parameters H18 and R35.

AUX Heat Outputs AUX HEAT 1 & 2 are 230V signal outputs intended to actuate a contactor or relay. They do not supply current to power any heating device. Any attempt to connect a heating element directly to these points will immediately render the heat pump inoperative and may cause permanent damage to the primary control board.
Alarm Output This sends a 230V signal to the ALARM OUT terminals when any fault or condition causes the heat pump to shut down, or prevents it from starting. This can be connected to a visual or audible device to alert a custodian that the heat pump requires immediate attention.
Communication Connections RS485 connections are provided for two-way serial communication via Modbus protocol to external Building Management and Monitoring equipment.
DI07 to GND on the ILAHP control board must be connected to a Normally Closed over temp safety switch located at the supplemental heat source. The switch must open if the safe maximum temperature is exceeded, and this will immediately open the AUX Output contacts. This feature must be employed when any supplemental heat source is used. This connection is located in the electrical compartment under the top cover.
The Remote Display output is a pigtail with a five-conductor female plug located inside the top compartment. The Display has a short connector that can be plugged directly into this pigtail for commissioning, and a 20m (66′) connection cable is provided to mount the display permanently in a suitable interior mechanical space. This cable can be extended up to 600′ by using 24 AWG shielded five-conductor cable and splicing it into the connection cable.

­ 8 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Dimensions
Unit Dimensions (inch (mm)) ILAHP
­ 9 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Required Clearances

­ 10 ­

Unit shall be mounted per local codes and high enough off ground to allow for proper condensate drainage

ILAHP Inverter Extreme Air-to-Water Heat Pump

SECTION 3:

GLYCOL/WATER SYSTEM

Table 1 ILAHP Glycol Concentrations (10% Minimum, 50% Maximum)

Ethylene Glycol % Min. Ambient Temp for Operation SpacePak Capacity Multiplier Pressure Drop Multiplier (Cooling) Pressure Drop Multiplier (Heating) Minimum Expansion Volume / System Volume Heating and Cooling (Gallons) Heating only, HP only (Gallons) Heating Only, with Boiler (Gallons)

10 23°F/-5°C
0.98 1.06 1.06

20 14°F/-10°C
0.96 1.12 1.12

30 2°F/-17°C
0.93 1.16 1.16

40 -13°F/-25°C
0.91 1.25 1.22

50 -36°F/-38°C
0.89 1.36 1.28

1 gallon expansion per 15 gallons system volume 1 gallon expansion per 20 gallons system volume 1 gallon expansion per 15 gallons system volume

Propylene Glycol % Min. Ambient Temp for Operation SpacePak Capacity Multiplier Pressure Drop Multiplier (Cooling) Pressure Drop Multiplier (Heating) Minimum Expansion Volume / System Volume Heating and Cooling Heating only, HP only Heating only, with Boiler Non use of propylene glycol will void warranty.

10 26°F/-3°C
0.99 1.10 1.10

20 18°F/-8°C
0.98 1.20 1.20

30 8°F/-13°C
0.96 1.34 1.34

40 -7°F/-22°C
0.93 1.5 1.46

50 -29°F/-34°C
0.88 1.65 1.5

1 gallon expansion per 15 gallons system volume 1 gallon expansion per 20 gallons system volume 1 gallon expansion per 15 gallons system volume

This information is provided as a general guideline only, and is not intended to cover all possible conditions. It is ultimately the responsibility of the installer to ensure that proper freeze protection is provided.

• A 35% concentration will prevent solid freezing, and protect from bursting, in all conditions. However, this solution will become a thick sludge at extremely low temperatures, possibly resulting in pump overloading, pump damage, or high pressures. Therefore this concentration should only be used in systems that will remain inactive during the winter. Use the higher value shown for systems that must start and run at the coldest temperatures.
  ­ 11 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

Glycol/Water System Design
The ILAHP has a recommended flow that should be maintained during all operation. The value is 12 Gallons per Minute, and should be considered a minimum. At this flow, the pressure drop through the heat pump is 12.8 PSI, or 29.5 ft WC, or 88 kPa. These head loss values are based upon pure water, see Table 1 for multipliers to correct for various concentrations of anti-freeze solution. Head Loss values shown are for the heat pump only, the selected circulator must be capable of overcoming the entire system head loss.
Note: these are the recommended flow values. Should the flow drop significantly below this value, the heat pump will shut down. This is not an indication of a fault in the heat pump, but rather points to insufficient pump or plumbing capacity, or air trapped within the system.
Glycol/Water Mixture
Automotive glycol is not suitable for use in the ILAHP system. Over time it may leave deposits which will degrade the performance and damage pumps or other devices in the system. Use only ethylene glycol or propylene glycol mixtures specifically labeled for boiler or HVAC use.
Obtain all components specified in the Typical System Diagram. Make sure all components and piping comply with applicable local codes.
DO NOT use galvanized pipe anywhere in the system. Galvanizing will react with the glycol and can cause glycol degradation and sludge in the system.
· Confirm charge of expansion tank is 12-15 PSIG (with no water or pressure in the system).
· Install the system piping. DO NOT connect the heat pump unit to the system piping until the system has been cleaned as required below.
The ILAHP must NOT be connected to the system during this process.
1. Connect a hose from a fresh water supply to the system fill hose bib. Note the drain port can be used for this purpose. The hose bib purge/drain valve should be located low in the system and close to the ILAHP return connection.
2. Open the high point purge valve, (not shown in illustration, as it may be inside the air handler) while slowly filling the system. Close the valve when air is removed from the system and water begins to flow out of the valve.
3. Fill the system with fresh water and run water until the system has been thoroughly flushed clean.
Automatic Fill ­ When an automatic fill system is installed, the cooling fluid (Glycol/water) must be inspected at least every 3 months, or whenever a leak is detected to ensure the proper glycol concentration is maintained.

System Volume and Expansion Volume
To ensure smooth temperature control and minimize cycling of refrigeration system, all installations must have total circulating volumes equal to or greater than 7.5 gallons per nominal ton of the unit performance at minimum capacity (The greater of either heating or cooling produced). In other words, in the case of a five ton heat pump with 3 to 1 turndown (0.33x rated capacity) the minimum total system volume is 5×0.33×7.5=12.5 gal. Multiple heat pump installations that are operating in a staged configuration follow the same rule, so that only a single heat pump tonnage needs to be considered. Additionally, the system requires an expansion volume (air) to compensate for the change in volume of the glycol mixture as it heats and cools, see Table 1 for expansion volume. A typical multiple heat pump installation may actually have a volume far greater than the minimum required, and it is this entire volume that must be considered when sizing the expansion tank. Note that the nominal expansion tank volume is not the same as the expansion volume. If the actual air volume is not published, consider it to be no more than half the nominal volume. As an example, a five ton nominal heat pump operating down to 33% capacity, used for both heating and cooling, requires a minimum of 12.5 gallons of circulated system volume. A 13 gallon buffer tank is selected for best operation. When the system installation is complete, the total volume including the heat pump, buffer tank, and all plumbing is 18 gallons. (Note: the expansion tank, no matter how large, is not considered circulated volume). According to the chart above, the minimum acceptance volume of the expansion tank must be at least 18/15, or 1.2 gallons. If the acceptance volume is not specified, assume it is no greater than 50% of the total tank volume. Therefore in the case of this example, the system would require a minimum tank size of 2.4 gallons. As it is unlikely to find this specific size. Always be sure to round up, so a tank of 3 gallons total volume, or larger, would be appropriate.
Air Separator
Locate at least one high efficiency air separator as shown in the piping to remove any air from the system.
Pressure Test The System
1. Add water to the system as needed to raise the pressure to 25 PSIG (verify that all system components are suitable for this pressure). Verify that the pressure remains constant for at least one hour. Locate and correct any leaks.
2. After successfully testing, drain the system and remove the fresh water hose.
Insulate The Piping
For systems used in cooling applications, the plumbing should be insulated using a vapor barrier to prevent sweating of the pipes and possible damage of the insulation or structure due to water accumulation.

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ILAHP Inverter Extreme Air-to-Water Heat Pump

SECTION 4:

WIRING

ILAHP Control Wiring Connection
The SpacePak ILAHP requires a dry contact (relay) signal to enable and select between heating and cooling modes. They will not operate on the 24V signals from typical thermostats or air handlers. Connecting 24V to either of these points will result in significant component damage and void factory warranty.
· Connect multiple zone system to heat pump using SpacePak SSIC Control Module and instructions included with it. Refer to manual supplied with SSIC Control Module for connection and operational details.
· See wiring diagram for heat pump electrical diagram.
Terminal Block Screwdriver
Prior to connecting wiring to unit, please ensure to use a properly sized tool to insert wires into terminal blocks. See below figure for dimensions. Failure to do so can result in damage to the terminal blocks or wires. Note: Dimensional drawing is in mm.

Note: As with all electronic devices, it is important to separate low voltage communication wiring from line voltage power wiring to avoid interference.
When alternating current flows through a conductor, it can induce voltage in another conductor that is placed nearby. This is the same principal that a transformer operates upon.
When 230VAC, 120VAC, or sometimes even 24VAC wires are run near any wires connected to the Remote On/Off, Remote Heat/Cool, Heat/Cool On/Off or ModBUS wiring, it can create interference that may cause erratic operation, or prevent normal operation of the heat pump.
Alternating current and communication wiring should always be separated by a minimum of 6″ throughout the length of the wires.
If it is unavoidable to run these wires with the proper separation, the use of shielded multi-conductor cabling for communication may provide sufficient protection to avoid interference. However this should be kept to a minimum length, and the system observed to verify normal operation.

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100 181

3,5 0,6

­ 13 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Wiring Diagrams and Definitions: Internal Wiring
The remote On/Off, Remote Heat/Cool, Heat/Cool On/Off, and DHW Enable inputs are for voltage-free relay contacts only. Any voltage introduced to the controls at these points will immediately destroy the primary unit control.
­ 14 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Wiring Diagrams and Definitions: Field Connections
AUX Heat Overtemp Switch
*When any auxiliary heating device, regardless of the source, is employed and controlled by the heat pump, a Normally Closed thermal switch or fuse must be wired between AI/DI 15 & GND, and installed in thermal contact with the water surrounding or within the heat source. The device must open, or fail open, if the water temperature exceeds a predetermined value sufficient to protect all associated equipment from excess temperature or pressure. In no case shall this value be greater than 201°F/94°C
The remote On/Off, Remote Heat/Cool, Heat/ Cool On/Off, and DHW Enable inputs are for voltage-free relay contacts only. Any voltage introduced to the controls at these points will immediately destroy the primary unit control.
­ 15 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

SECTION 5:

REMOTE TOUCHSCREEN DISPLAY

Overview of the Remote Touchscreen Display
The remote touchscreen display is the Operation and Service interface to the ILAHP control.
The full-color screen displays current water inlet and outlet temperatures, outdoor ambient temperature, and DHW tank temperature (if this feature is enabled).
It also allows the user to query the operating status of multiple system characteristics, as well as providing the ability to view and adjust operating parameters through various menu screens.

Remote Display Connection Diagram
ILAHP Heat Pump

Function of the Ports Port No. Name
Signal port CN2
Power input

Terminals No. 485A/485B
+12V/GND

Function Communicate with PC8002
Power supply of wire controller, 12V DC

Display Windows and Functions
If the display screen is not touched in 30s the screen will dim. The screen will go to sleep after 2 minutes of no operation. Touching the screen will “wake” up the controller again. If the units selected is deg F, the date and time will be displayed as MM/DD/YY, Hr/Min/ Wk. If the units selected is deg C, the display date and time will be displayed as DD/MM/YYY and Hr/Min/Wk.
Power on Display Window

HEATING/AC
The display will show controller and display versions after several seconds at start up. The top number, after the upper-case V, is the Control Software version, the bottom number, after the lower-case v, is the Display Software version. These will be displayed for about four seconds, then show the Home Screen. If communication fails, the version numbers won’t be displayed and the Home Screen will appear after 15s. In this case, the home screen will show all zeros, or inaccurate default values.

­ 16 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Main Display Window
Local Time Operating Mode DHW Tank Temp
Power Button. Operating, Red. Standby, White.

Defrosting Icon Fault indicated. Touch
to See Fault Log.
Inlet Water Temp
Outlet Water Temp
Setting Key

Mode Key

Target Temp Set

Lock

Contents and Buttons on Main Display Window On the startup interface, contents and buttons on main display are illustrated above.

On/Off Key

Mode Key

Timer On/Off Key, On Green, Off White

The “on/off” key or power button allows a use to turn the unit on or off regardless of the status of the unit. This will shut down the entire unit, but the unit will still have power going to it. The main display will then turn grey.
Return Key

By pressing the “Mode” key the user can now choose which mode they would like the heat pump to run in. Once the mode has been selected, the screen will automatically return to the main screen and the appropriate mode symbol will be displayed on the main screen. Heating = sun, cooling = snowflake etc…
Target Temp Set Key

In each sub-menu (not the main interface) the user can use the

“return key” to return to the previous screen. This is located in the This key is used to set the target set point the heat pump will

upper left-hand corner of each menu and submenu.

work to achieve.

Animation on Main Display Window 1. When the unit is in defrosting mode, the defrosting icon will show until the defrosting is completed.
2. When the unit is shutdown, the main display will turn grey.
3. When the unit is shutdown, if the timing switch function is activated, the color of the button for `timer on/off key’ will be green, if not, the button will be white.

­ 17 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Mode Selection and Target Temperature Setting
Mode Selection On main display window, press M’ button, it will show five modes. After having chosen one mode, It will return to main display automatically. 1. When choosing Hot Water mode, the display will show ‘hot water’ 2. When choosing Heating mode, the display will showheating’ 3. When choosing Cooling mode, the display will show `cooling’ 4. When choosing Hot Water + Heating mode, the display will show ‘hot water’ and ‘heating’. 5. When choosing Hot Water + Cooling mode, the display will show ‘hot water’ and ‘cooling’.
Other Selections
Mode Selection Under Member Mode When choosing member mode H07=1, the color of the buttons on the display will turn grey and are not clickable. Target Temperature Setting Under Current Mode The different modes have different target temperature settings interface. For example, when choosing Cooling mode, The target temperature setting interface will show cooling set point.
­ 18 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Target Temp Set Screen
This can be adjusted by pressing the temp (on the screen) which opens a new screen and then entering in a numeric value within specified parameters in the control (see parameter chart for min and max settings). Once a target is set, the user will need to press “enter” to save the set point. This should return the user to the target set screen where they will see the new setpoint has been saved. Press the return key to return to the main interface. Lock Key
The lock key button will allow a user to lock the screen and prevent un-wanted or accidental touches on the screen. Lock Key Passcode Screen
To unlock, simply press the lock key again and enter the code “22” when prompted. Press enter and the screen will be unlocked again. ­ 19 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Timer Key
The timer key allows the user to set a schedule to not allow the unit to operate through timers regardless of set points. Timer Key Screen
The user can use the day schedule on the bottom row to select the day they want to set the unit to be off. Once the day is selected, the user will need to select the appropriate times (AM or PM) that the unit will not need to be run. For example: If a user does not want the unit to run on Monday from 11 AM ­ 2PM. Select “Mon” at the bottom (red arrow should be under the day). Select “AM” and press the clock on the 11-12 block and the 1-2 block. This should highlight the blocks in green. Once the schedule has been set, the user will need to ensure the “on/off” toggle is set to “on” by pressing it if it set to “off”. Once confirmed, press the “return” key which will bring you back to the main interface. During normal operation, the unit will run normally. During the scheduled “off” time the main interface will now be grey and the “timer key” will be illuminated in green. Settings Key
­ 20 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Settings Screen
Settings > Status
Under the status menu, the user can view the following status’ of the unit during real time operation 1. Unit Status (on/off). Whether the unit is operating or not 2. Present Mode: Displays the mode that the unit is running in (heating, cooling etc..) 3. Inlet Water Temp: Displays the current inlet water temperature being measured 4. Outlet Water Temp: Displays the current outlet water temperature being measured 5. Tank Water Temp: Displays the domestic hot water tank temperature, if used. If installed (see wiring diagram: field connections
for wiring locations of tank water temperature). If not installed or not reading the display will show “- – -” 6. Ambient Temp: Will display the current ambient temperature being measured 7. Coil Temp: Will display the current coil temperature being measure on the surface of the finned coil. 8. Exhaust temp: Will display the current discharge refrigerant temperature.
­ 21 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Settings > Electric Heating All ILAHP units have a feature that allows the unit to turn on a dry contract “AUX” relay (see wiring section) for an external electric heater. The heater can be controlled by selecting and adjusting the appropriate parameters (see parameter chart) to provide supplemental heat when desired. To turn the feature on, press the electric heating key and choose “on”. To turn off, choose “off”. Once selected, the screen will automatically return to the “settings” screen.
Settings > Clock
By pressing the clock menu, the user can set the correct time and date by using the up and down arrows keys. To save the user must press the enter key.
­ 22 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Settings > Whisper Mode
The purpose of the Whisper Key is to silence the fans and unit for a quieter operation. When pressing the Whisper key, the user has two options. “Fast Whisper” or “Whisper Timer”. In “Whisper Mode” both the compressor and the fans will be limited. Fast Whisper- To enable the “Fast Whisper” function, press the “Fast Whisper” button, this will slow the fans down to provide a quieter operation. However, the fast whisper will also decrease capacity. Use only when quiet operation is required. To turn off, press “Fast Whisper” again. “Fast Whisper” may also be referred to as “Fast Mute” however the functionality will be the same. Settings > Whisper Mode > Whisper Timer
Allows the user to schedule times to quiet the unit. This will slow the fans down to provide a quieter operation during the scheduled times. However, the Whisper timer will also decrease capacity. Use only when quiet operation is required
­ 23 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Settings > Curve
The curve key allows a user to visually see (in real time and historical) the operational curves of the inlet water, outlet water and ambient on graph of temperature versus time period. Settings > Factory
The factory key allows the user to enter in a password that will provide certain information based on the password entered. Please see below charts for each menu based on password selection.
­ 24 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Settings > Factory > Passcode ’22” Password = “22” the following menus appear: Settings > Factory > Passcode’22” > Parameters Parameters Submenu
Press this key to access certain parameters only meant to be changed by a user. Use the parameter chart from this manual to determine what parameters are accessible with the proper password.
­ 25 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Temperature Compensation/Outdoor Reset Screen
The Outdoor Reset feature allows the Heat Pump to target specific Heating Temperatures according to the outdoor ambient temperature. The Outdoor Reset curve is determined by three values; 1. The Maximum supply temperature, Parameter R42 2. The Offset, which is the Theoretical Target Temperature at 0°F Ambient 3. The Slope, which is the change in Water Temp, with respect to the change in Ambient Temp. This is expressed as the Water Temp
change divided by the Ambient Temp. both expressed in degrees F. The value of R42 is accessed through the Parameter Menu, the Offset and Slope are entered directly in the Temperature Compensation Screen. A window at the bottom of the screen allows the user to enter an arbitrary Ambient Temp. and seeing the predicted Target Temp. This is for information only and does not change the settings. Where the Slope and Offset values would result in Supply temperature greater than the value of R42, the actual supply temperature is limited to not exceed R42. At Ambient temperatures greater than 68°F, the Supply temperature is maintained the same as at 68°F. Note: when Outdoor Reset is on, the Heating Temperature Setpoint, R02, has no effect on unit operation. The temperature is controlled solely by the three values above.
­ 26 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Settings > Factory > Passcode `’22” > Unit State Unit State Submenu
­ 27 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

Allows the user to see the current state of certain items. By selecting the appropriate top menu, the user can see how the unit is currently operating. See below chart for each item a user can monitor.

Top Menu
Load Status

Number Name
O01 System1:Compressor O02 System2:Compressor O03 Fan Motor: High Speed O03 Fan Motor1 O04 Fan Motor:Low Speed O04 Fan Motor2 O05 Main Circulation Pump O06 Domestic Hot Water Pump Output O07 Four-Way-Valve 1 O08 Stage 1 O09 Stage 2 O10 Hot Water Three-Way-Valve O11 Alarm O12 Crankcase Heater
S01 Syst1:High Pressure

Switch Status
Temp Status

S02 Syst1: Low Pressure
S03 Flow Switch S04 Electric Heater Overload S05 Remote Switch S06 Air Conditioning Mode Switch S07 Hot Water Switch S08 Syst2: High Pressure S09 Syst2: Low Pressure S10 Air Conditioning Switch T01 Inlet Water Temp T02 Outlet Water Temp T03 Syst1: Coil Temp1 T04 Ambient Temp T05 Syst1: Suction Temp T06 Syst1:Antifreeze Temp1 T07 Syst1:Antifreeze Temp2 T08 Water Tank Temp T09 Room Temp T10 Syst1: Inlet Temp (EVI) T11 Syst1: Outlet Temp (EVI) T12 Syst1: Exhaust Temp T13 Syst1: Compressor Current T15 Syst1: Pressure T18 Syst2: Coil Temp T19 Syst2: Suction Temp T20 Syst2: Antifreeze Temp1 T21 Syst2: Antifreeze Temp2 T22 Syst2: Inlet Temp (EVI) T23 Syst2: Outlet Temp (EVI) T24 Syst2: Exhaust Temp T25 Syst2: Compressure Current T26 Syst2: Pressure T27 Speed of Fan Motor1 T28 Speed of Fan Motor2 T29 Target Speed of Fan Motor T30 Compressor Frequency T31 Operation Frequency of Compressor T32 Max Frequency Allowed for Driver T33 IPM Shutdown Protection Temp. Due to Overheat T34 AC Input Voltage T35 AC Input Current T36 Phase Current of Compressor T37 DC Bus Voltage T38 IPM Temp. T39 Water Flow T40 Inlet Water Temp of Air-Conditioning T41 Outlet Water Temp of Air-Conditioning T42 Outlet Water Temp of Water Mixer T43 Inlet Water Temp of Hot Water T44 Outlet Water Temp of Hot Water

Unit State Menu

Possible Options

Description

On/Off N/A N/A N/A N/A N/A
On/Off On/Off On/Off On/Off On/Off On/Off On/Off On/Off
Open/Closed
Open/Closed
Open/Closed Open/Closed Open/Closed Open/Closed Open/Closed
N/A N/A Open/Closed °F / °C °F / °C °F / °C °F / °C °F / °C °F / °C °F / °C °F / °C N/A °F / °C °F / °C °F / °C
A
N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A RPM
N/A RPM
HZ HZ HZ °F / °C AC
AC
A
DC
°F / °C N/A N/A N/A N/A N/A N/A

If ON, compressor is in use. If OFF, compressor is not in use. Not used on this unit. Not used on this unit. Not used on this unit. Not used on this unit. Not used on this unit. If ON, the main circulation pump is in use. If OFF, the main circulation pump is not in use. If ON, the DHW pump is in use. If OFF, the DHW pump is not in use. If ON, the four-way-valve is active. If OFF, the four-way-valve is not active If ON, Stage 1 is On. If OFF, stage 1 is off If ON, Stage 2 is ON. If OFF, stage 2 is off If ON, Hot water three way valve is ON. If OFF, hot water three way valve is off If ON, the alarm is activated. If OFF, the alarm is not activated. If ON, the Crankcase heater is in use. If OFF, the Crankcase heater is not in use. High Pressure protection switch. Closed indicates normal operation. Open indicates the switch is
tripped on High Pressure, 638 PSIG, 4.4 MPa. Low Pressure protection switch. Closed indicates normal operation. Open indicates the switch is
tripped on Low Suction Pressure, 2.1 PSIG, 0.15 MPa Water flow switch. Closes when minimum flow is achieved, Approximately 12 GPM. Closed indicates normal operation. Open indicates the switch is tripped. Closed indicates normal operation. Open indicates the switch is tripped. Closed indicates normal operation. Open indicates the switch is tripped. Closed indicates normal operation. Open indicates the switch is tripped. Not used on this unit. Not used on this unit. Closed indicates normal operation. Open indicates the switch is tripped. Current return water temperature in °F or °C. Current supply water temperature in °F or °C. Current coil temperature in °F or C. Current ambient temperature in °F or °C. Compressor Suction Temperature in °F or °C. Current antifreeze temperature1 in °F or °C. Current antifreeze temperature2 in °F or °C. Current water tank temperature in °F or °C. Not used on this unit. Current inlet temperature (EVI) in °F or °C. Current outlet temperature (EVI) in °F or °C. Current exhaust temperature in °F or °C. Current compressor current in Amps. Not used on this unit. Not used on this unit. Not used on this unit. Not used on this unit. Not used on this unit. Not used on this unit. Not used on this unit. Not used on this unit. Not used on this unit. Not used on this unit. Current fan motor speed in RPM. Not used on this unit. Current target speed of fan motor in RPM. Current compressor frequency in Hz. Current operation frequency of compressor in Hz. Current max frequency allowed for driver in Hz. IPM shutdown protection temperature in °F or °C. Current AC input voltage. Current AC input current in Amps. Current phase current of compressor in Amps. Current DC bus voltage. IPM temperature in °F or °C. Not used on this unit. Not used on this unit. Not used on this unit. Not used on this unit. Not used on this unit. Not used on this unit.

­ 28 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Settings > Factory > Passcode `’22” > Failure Failure Log Submenu
Press this key to find the log of the most recent faults the unit has encountered. The fault, the time of the fault and the date of the fault will all be recorded and displayed. The log is capable of holding the most recent 35 faults. The fault log can be cleared by pressing the “Clear” button in the upper right hand corner and then entering in the correct password. The password changes everyday with the day of the month (see instructions how to set up time and date). Example: if the date is 1/5/21 the password will be “5”. Press Yes to continue/verify to clear the log.
­ 29 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Settings > Factory > Passcode ’22” > Brightness Brightness Submenu The brightness key allows the user to adjust the screen brightness. Press the brightness bar to the right to make the display brighter and the left on the brightness bar to make the display less bright. Settings > Factory > Passcode ’66” Password = “66” the following menus appear: Use the Parameter table in this manual to define and determine which parameter are accessible through the “66” pass code.
­ 30 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
­ 31 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
­ 32 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
­ 33 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

SECTION 6:

PARAMETERS

Top Menu Number H01 H02 H03 H05 H06 H07
H10 H15 H16 H17
H18

System

H20

H21

H22

H25

H27

H28 H29 H30

H31

H32 A03

A04

A05

Protect

A06

A11 A12 A13 A19 A20 A21 A22

Name Auto Start System Quantity 4-Way Valve Polarity Cooling Mode Unit Model Selection Dry Contact Unit Address Compressor Shunt Times Comp Overcurrent Setpoint Comp Energy Stage Control
Electric Heater Energy Stage
3-Way Valve Polarity Temperature Unit Silence Mode
Air Conditioner Temp Choice
EVI Enabled Heating/Cooling and Hot Water Function
Enabled Model Running Parameter Code
Hydraulic Module
Pump Type
Force Switch Mode Time
Shutdown Ambient Temp
Antifreeze Temp
Antifreeze Temp Difference Exhaust Temp Protect Setup Low Voltage Pressure Sensor Low pressure Sensor Max. Value Low Pressure Sensor Min. Value
Antifreeze Program Current Transformer Type Ambient/Suction/Coil Sensor
Antifreeze Min Temp

Range

Factory Default

Description

Yes/No

Yes

The control will retain the last operating mode when powered down and restarted

N/A

N/A Not used on this unit.

N/A

N/A Not used on this unit.

Yes/No

Yes

If H05 = No, unit will only operate in heating. If H05=Yes, unit can operate in both heating and cooling.

N/A

N/A Not used on this unit.

Master/Member

Master

When H07 = Master, unit is controlled by remote display, when H07 = Member, unit is controlled by field wired inputs

1-32

1

When multiple units are operating from a Modbus signal, H10 is set to the unique address of the individual unit.

N/A

N/A Not used on this unit.

N/A

N/A Not used on this unit.

N/A

N/A Not used on this unit.

Stage 1/Stage2/ Stage3

Stage1

H18 = 1single stage of electric heat engages after 30 minutes. H18 = 2, stage 1 runs for 30 minutes, then disengages and Stage 2 engages.H18 = 3, Stage 1 runs for 30 mintues, then disengaged and Stage 2 engages and runs for 30 minutes, then Stage 1 and Stage 2 run together

Hot Water ON/Hot Hot Water When H20 = Hot Water ON, DHW circuit energizes on a DHW call.

Water OFF

ON When H20 = Hot Water OFF, circuit de-energizes on a DHW call.

°C/°F

°F H21=0, Degrees Celsius; H21=1, Degrees Farenheit

Yes/No

No

H22 = No, whisper mode disabled, H22 = Yes, whisper mode enabled

Outlet Water/ Room
No EVI/EVI for Cooling/EVI for Heating/All EVI
Yes/No
0-20
Yes/No No Flow Detected/
Grundfos25-75/ Grundfos25-105/ Grundfos25-125
1-300
-40-50°F
N/A
1.8-90°F
140-266°F Yes/No N/A N/A N/A N/A 5K/2K -5-140°F

Outlet Water All EVI
No 0 No No Flow Detected
60
-22
36
5
239 N/A N/A N/A N/A N/A 5K 34

H25 = Outlet Water Temperature, heating operation modulates on Leaving Water Temperature. H25 = 1 is not supported.
H27 = 0 EVI is not active. H27 = 1 EVI is active in cooling only. H27 = 2 EVI is active in heating only. H27 = 3 EVI is active in both heating and cooling
H28 = No, DHW is not enabled. H28 = Yes, DHW function is enabled
H29 = 0 for all modes of operation. All other values are for factory testing only
Feature is not used in the ILAHP
H31 = No Flow Detected. No integral water pump is offered. No other options are applicable on this unit.
This is the maximum continuous time DHW will operate if there is a heating call. After H32 time expires, unit will change over and satisfy the heating call.
The ILAHP will not start or operate when the ambient temperature is below A03.
Freeze protection will energize the circulator when the ambient temperature is below 35.6°F and the Inlet Water Temp is below A04. The ILAHP will start in Heating mode when the ambient temperature is below 32°F and the inlet water temperature is below A04.
Freeze protection will shut off when the inlet water temperature rises above A04+A05.
Comressor will shut off if the discharge temperature reaches A06. It will restart when the temperature falls to A06 – 54°F
N/A
Not used on this unit.
Not used on this unit.
Not used on this unit.
Not used on this unit.
5k NTC Thermistor, 2k NTC Thermistor
The minimum allowable value of A04 is defined as A22

­ 34 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

Top Menu Number F01
F02
F02
F03
F03 F04 F04
F05
F05
F06
F06 F07 F07
F10 Fan
F11 F15 F16 F17
F18

F19 F20 F21 F22 F23 F24

F25

F26

D01

D01

D02

D03

D04

D06

Defrost

D07

D08

D09

D10

D10

D11

D11

D12

Name
Fan Motor Type
Max Cool Coil Temp
Cooling High Speed Pressure
Min Cool Coil Temp
Cooling Low Speed Pressure Stop Cool Coil Temp
Cooling Motor Off Pressure
Max Heat Coil Temp
Heating High Speed Pressure
Min Heat Coil Temp
Heating Low Speed Pressure Stop Heat Coil Temp
Heating Motor Off Pressure
Quantity
Speed Control Mode Unloading Coil Temp Advanced Start Time Fan Motor Max Speed In
Cooling Fan Motor Speed
Fan Motor Min Speed in Heating
Mute Mode Speed Timer Mute
Manual-control Fan Speed
DC/EC Fan Rated Speed DC Fan Motor Speed Regulation Plate
Number
Cooling Fan Max Speed
Heating Fan Max Speed
Start Defrosting Setpoint
Start Defrosting Pressure Exit Defrosting Setpoint
Defrosting Cycle Max Defrosting Time
Mode Electric Heater Control Sliding Defrost Ambient Temp Sliding Defrost: AT Diff Sliding Defrost: CT Diff Sliding Defrost: Pressure Diff Sliding Defrost: Min CT Sliding Defrost: Min Pressure Defrosting Frequency

Range
High/Double/DC
5-140°F
N/A
5-140°F
N/A N/A N/A
5-140°F
N/A
5-140°F
N/A N/A N/A One Fan(0) /Two Fans (1) N/A N/A N/A N/A
10-1300
10-1300
N/A Yes/No
Yes/No
10-1300

Factory Default
DC
95
N/A
50
N/A N/A N/A
32
N/A
50
N/A N/A N/A

Description
F01=DC fan The fan will run at the maximum speed according to F25 when the Coil temperature is above F02 in Cooling Not used on this unit. The fan will run at the minimum speed according to F18 when the Coil temperature is below F03 in Cooling Not used on this unit. Not used on this unit. Not used on this unit. The fan will run at the maximum speed according to F26 when the Coil temperature is below F05 in Heating Not used on this unit. The fan will run at the minimum speed according to F19 when the Coil temperature is above F06 in Heating Not used on this unit. Not used on this unit. Not used on this unit.

Two Fans F10 = 0 then 1 fan is present, F10 = 1 then 2 fans are present

N/A Not used on this unit.

N/A Not used on this unit.

N/A Not used on this unit.

N/A Not used on this unit.

450

F18 is the minimum RPM of the fan in Cooling according to coil temp F03

350

F19 is the minimum RPM of the fan in Heating according to coil temp F04

N/A Not used on this unit.

No F21 = No, timer mode is disabled, F21 = Yes, timer mode is enabled

No

F22 = No, manual fan speed cannot be enabled, F22 = Yes, manual fan speed can be enabled

600 F23 = the manual fan speed if F21 = 1 Yes

N/A

N/A Not used on this unit.

10-1300
10-1300
-22-41°F
N/A 32-86°F 30-90
1-12 N/A Yes/No -40-122°F 1.8-90°F 1.8-90°F N/A -40-122°F N/A 30-90

700

F25 is the maximum RPM of the fan in Cooling according to coil temp F02

700

F26 is the maximum RPM of the fan in Heating according to coil temp F05

20

Defrost will start if coil temp is below D01 and compressor has been running longer than D03 minutes

N/A Not used on this unit.

50 Defrost will end when the coil temp rises above D02

45 Minimum Start to Start time between two consecutive defrost cycles

8

Maximum allowable duration of one defrost cycle

N/A Not used on this unit.

Yes Energizes Electric heat during Defrost operation

36 ODR Defrost is enabled below this ambient temp

18 ODR Defrost ranges between D08 and D08-D09 ambient

18 ODR Defrost ranges between D01 and D01-D10 Coil Temp

N/A Not used on this unit.

-10 Minimum Coil temp of ODR Defrost range

N/A Not used on this unit.

70 Fixed compressor speed during defrost operation

­ 35 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

Top Menu Number
E01 E02 E03 E04 E05 E06 E07 E08 E09 EEV E10 E11 E12 E13 E14 E15 E16 E17 E18 R01 R02 R03 R04
R05

Name
EEV1 EEV Adjust Mode EEV1 Target Superheat Degree
EEV1 EEV Initial Steps EEV2 EEV Adjust Mode EEV2 Target Superheat Degree EEV2 EEV Initial Steps
EEV Min Steps Cooling: initial Steps EVI1: Adjustment Mode
EVI1: Initial Steps EVI2: Adjustment Mode
EVI2: Initial Steps EVI Target Superheat Degree
EVI: Min Steps EVI: Enter Exhaust-Control Temp EVI: Exit Exhaust-Control Temp
Defrost Place Target Superheat For Cooling
Hot Water Setpoint Heating Target Setpoint Cooling Target Setpoint Heating Power-on Return Difference
Heating Constant Temp Power-off Temp Difference

Range
Manual/Auto -36-36 0-500 N/A N/A N/A 0-500 0-500
Manual/Auto 0-500 N/A N/A
-36-36°F 0-500 N/A N/A 10-500
-19-18°F N/A N/A N/A
0-18°F
0-18°F

R06

Cooling Power-on Return Difference

0-18°F

R07

Cooling Constant Temp Power-off Temp Difference

R08

Min Cooling Setpoint

R09

Max Cooling Setpoint

R10

Min Heating Setpoint

R11

Max Heating Setpoint

R12

Max Outlet Water Temp

R13 Max Outlet Water Temp (Low Ambient Temp)

R14 Max Outlet Water Temp (High Ambient Temp)

R15 Return Difference of Exiting High Temp Mode

0-18°F
-22 to 180 -22 to 180 -22-145°F 65-210°F
N/A N/A N/A
0-27°F

R16 Power-on Return Difference of Tank Water

0-18°F

Temp

R17

Standby Temp Difference of Tank Water

0-18°F

R29

Compensation-ON low AT

R30

Compensation-OFF low AT

-10-39°F -10-39°F

R31

Low-AT Max-Compensation AIM

68-185°F

R32

Compensation-ON High AT

R33

Compensation-OFF High AT

R34

High-AT Max-Compensation Aim

50-131°F 131-140°F 68-185°F

R35

Functions of Electric Heater

Not used/Water Line/Water Tank

R36

Min Hot Water Setpoint

R37

Max Hot Water Setpoint

R39 Heating Mode Auto Restart Ambient Temp

32-149°F 32-149°F 41-68°F

R40

Ambient Temp of Main Pump Running

14-140°F

R41 Heat Pump Running Ambient Temperature

R42

Max Water Heating Temp

R43 Max Water Heating Temp (Under Low Temp)

R44 Max Water Heating Temp (Under High Temp)

R45 Electric Heater Start (No Delay) Ambient Temp

R46

Max Outlet Water Temp Difference

14-140°F
68-185°F 68-185°F 68-185°F -58-68°F
0-45

Factory Default
Auto 5.4 0 N/A N/A N/A 100 350 Auto 250 N/A N/A 5.4 60 N/A N/A 480 3.6 130 120 42 3.6
3.6
3.6
3.6
36 60 80 140 N/A N/A N/A 3.6
3.6
3.6
0 -10
105
115 120 110
Not Used
100 136 50
140
140
130 110 110 15
3.6

Description
E01 = Auto EEV is automatically controlled Target suction superheat of EEV in Heating mode Initial EEV opening at startup in Heating Not used on this unit. Not used on this unit. Not used on this unit. Minimum opening of EEV during modulation Initial EEV opening at startup in Heating E09 = Auto EVI EEV is automatically controlled Initial EVI EEV opening at startup Not used on this unit. Not used on this unit. Target EVI superheat Minimum opening of EVI EEV during modulation Not used on this unit. Not used on this unit. Main EEV opening during Defrost operation Target suction superheat of EEV in Cooling mode Target temperature of sensor inside potable domestic hot water tank Target temperature of the outlet water supplying the Heating loop Target temperature of the outlet water supplying the Cooling loop Heating operation will on a new call when the Outlet water is R02 – R04 Heating operation will stop when the Outlet water rises to R02 + R05. Then set value of T = Inlet temp at that instant. When Heating call is maintained, operation will resume when Outlet temp falls to T – R04 Cooling operation will start on a new call when the Outlet water is above R03 + R06 Cooling operation will stop when the Outlet water falls to R03 – R06. Then set value of T = Inlet temp at that instant. When Cooling call is maintained, operation will resume when Outlet temp rises to T + R06 Minimum allowable Cooling setpoint Maximum allowable Cooling setpoint Minimum allowable Heating setpoint Maximum allowable Heating setpoint Not used on this unit. Not used on this unit. Not used on this unit. Differential to reset Outlet water High Temp protection. Unit restarts at Max Outlet T – R15 DHW function will start when the DHW Tank temperature is below R01 – R16
DHW function will stop when the DHW Tank temperature reaches R01 + R17
Heating Outlet temp roll back begins as ambient falls to R29 Heating & DHW Outlet temp roll back ends as ambient falls to R30 Heating & DHW Temperature of Outlet Water when Ambient is below R30 DHW Temp roll back starts as Ambient rises above R32 DHW Temp roll back ends as Ambient reaches R33 Target Temperature of DHW when Ambient is above R33 R35 = Not Used no electric heater present. R35 =Water Line, Heater active in Heating Mode, R35 = Water Tank, Heater active in DHW Mode Minimum Allowable setpoint for DHW Tank Maximum Allowable setpoint for DHW Tank Room temp control Setpoint when H25 = 1 When the Ambient temp is below R40, the pump will operate according to P01 value. Above R40 the pump will operate as if P01=1 When the Ambient temp is below R41, the pump will operate according to P05 value. Above R41 the pump will operate as if P05=1 Max Outlet water temp during Heating operation. Temperature of Outlet Water when Ambient is below R30 Temperature of Outlet Water when Ambient is above 68° Electric heat engages without delay when Ambient Temp is below R45 Unit shuts down on High Outlet Temp if outlet water temperature is above R11 + R46

­ 36 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

Top Menu Number

P01

P02

Pump

P03

P04

P05

G01 G02 Disinfection G03 G04 G05
C01
C02
C03 Compressor C04
C05 C06 C07 C08 C09

Name
Running Mode
Running Interval Time Running Duration
Advanced Start Time
Domestic Hot Water Pump Working Mode
Setpoint Time of Duration
Start Time Work Cycle High Temp Disinfection
Manual Frequency
Minimum Frequency
Max Frequency Model Selection Minimum Frequency of Low Ambient Temp
(Cooling) Frequency Control Mode
Resonance Point 1 Resonance Point 2 Resonance Point 3

Range
Ordinary/Special/ Interval
1-120 1-30 N/A
Ordinary/Special/ Interval
140-158°F 0-60 0-23 1-30
Yes/No
0-120
20-60
30-120 0-99 0-60 1-120 N/A N/A N/A

Factory Default
Special
30 3 N/A
Special
145 30 23 7 No
0
30
90 0 50 1 N/A N/A N/A

Description
P01 = Ordinary, Pump runs whenever Remote On/Off is closed. P01 = Special, Pump runs when when Remote On/Off and Heat/ Cool On/Off is closed. P01 = Interval, Pump runs on intervals according to P02 and P03
Interval between Main Circulator runs when P02 = 2
Run time of Main Circulator when P01 = 2
Not used on this unit.
P05 = Ordinary, DHW Pump runs whenever DHW On/Off is closed. P05 = Special, Pump runs when whenDHW On/Off is closed and TT is below DHW setpoint – R32. P05 = Interval, Pump runs on intervals according to P02 and P03
Target temperature or Sterilize cycle
Duration of Sterilize Cycle
Time of day (24h) to start Sterilize cycle. 23 = 11:00 PM
Number of days between Sterilize cycles
G05 =No, Sterilize Cycle is Dormant G05 =Yes, Sterilize Cycle is active
This fixes the compressor at a fixed speed, in Hz. If C01 = 0, compressor speed will modulate
The minimum speed, in Hz, that the compressor will modulate to in response to the load
The maximum speed, in Hz, that the compressor will modulate to in response to the load
C04 = 0 for all ILAHP. Do not Change
The minimum speed, in Hz, that the compressor will modulate to in response to the load when the Ambient temperature is below 23°F
C06 = 1 for all ILAHP. Do not change
Not used on this unit.
Not used on this unit.
Not used on this unit.

To ensure reliable cold weather operation, the ILAHP48 employs electric heaters in the lower pan, to prevent condensate from freezing and accumulating at the bottom of the outside coil, and a compressor crankcase heater, to prevent refrigerant from dissolving into, and diluting, the compressor oil.
The control board provides line voltage outputs and logic to operate these heaters.
The heaters are powered directly by Relay Outputs. RO10 to the pan heater turns on as the temp falls to 4°C (39°F) and turns off as the temp rises to 6°C (43°F)
When the compressor is off, RO11 turns on the crankcase heater whenever the ambient temp falls to 8°C (46°F) and turns off when the temp rises to 10°C (50°F) The CC heater is off any time the compressor is running. These actuation points are not adjustable.

­ 37 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Meaning of Each Parameter
Parameter A (Protection Parameter)
Anti-Freeze Protection
Detect Malfunction Cooling mode: After the compressor starts, it will detect water outlet temperature (T02). If T02A01 or the suction pressure is lower than A02 for 10s, the unit will enter anti-freezing protection. Note: The unit only starts to detect suction pressure after the compressor has run for 5 minutes. Heating / Hot water mode: After the compressor starts, it will detect water outlet temperature (T02). If T02T01-2 and T02A01 at the same time, the unit will enter anti-freezing protection. Malfunction Performance The unit will stop running and the 4-way valve won’t change its place. The pump will keep running. Recovery 1. When the unit detects its water outlet temperature T02 parameter A01+A03 or the suction pressureparameter A02, the unit
will restart to run automatically. 2. If the protection happens over 3 times within 30min, the unit must be restarted manually. A04—-Shutdown Ambient Temp When the ambient temperature (T07) is lower than A04, the unit will not run but there is a primary winter protection function still in place. (Electric heating is not affected. The pump must remain on while electric heating is in use.). When the Ambient Tempparameter A04+2°C, the unit will restart to run. A05—-Discharge Temp Protect Setup The unit will stop running and enter high exhaust temp protection five minutes after the compressor starts if the exhaust temperature is higher than A05. When the unit detects its exhaust temperature T03parameter A05-25°C, the unit will restart automatically. A06—-Spray Valve Open Temp In cooling mode, when the ambient temperature (T07) reaches the value A06, the unit will open spray valve to cool the condenser. If the T07A06-2°C, the spray valve will shutdown.
­ 38 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Parameter D (Defrost Parameter)
1. Requirements to enter defrost The defrost timer will start when the suction pressure is less than D05 for longer than a minute after the compressor starts. If there is a suction pressure sensor failure, the unit will start timing defrost, and the defrost cycle is D03, defrost time is D04.
2. Requirements to stop defrosting The unit will stop defrosting when T09D02, and T06D01. If the defrosting time reaches the maximum D04, the heat pump stops defrosting. D01—-Exit Defrosting Setpoint.
3. Defrosting action The following operations shall be conducted if it complies with beginning defrost requirements: a. The compressor starts to lower the frequency at the target frequency of 30Hz.The timer starts. b. When the elapsed time is 55S, the fan stops working and the four-way valve turns its direction. c. Wait 5s, and then start to increase the frequency until you reach the target frequency of D11 (max value). The following operations shall be conducted if it complies with stop defrost requirements: a. The compressor starts to lower the frequency at the target frequency of 30Hz. (The timer starts). b. When the elapsed time is 55S, the fan stops working and the four way valve turns its direction. c. Wait 5s, and then start to increase the frequency; d. Increase the frequency to the start frequency setting and maintain it for 3 minutes before automatically determining the inlet temperature.
Abnormal end of defrosting If the system turns off while defrosting, the defrosting cycle will continue until it is completed. When the HP switch is disconnected in the course of defrosting, the heat pump will stop defrosting. When the water flow switch is disconnected in the course of defrosting, the heat pump will stop for protection. When the LP switch is disconnected in the course of defrosting, the heat pump shield this fault and keep defrosting. When the exhaust temperature is overheated in the course of defrosting, the heat pump will stop for protection. When anti-freezing protection in the course of defrosting, the heat pump will stop for protection.
­ 39 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump Parameter F (Fan Parameter)
Normally, in heating mode or cooling mode, fan will start 10s ahead of compressor and stay on 30s after it has shut off. 1. Fast mute function
When the fast mute function is turned on, the fan will run according to parameter F13 if necessary. The mute function will run for 8 hours. If the timer mute function is active and a user activates the “fast mute” then timer mute function will be canceled. Unit will run in “fast mute”. 2. When F10=1, enable the timing mute function. During the time of F11-F12 (including F11, excluding F12), the fan will run according to parameter F13 if it must be used. If the fan needs to be turned on at other times, the speed will be controlled according to the suction pressure and exhaust pressure. 3. During the mute function cycle if a high or low pressure protection occurs, the unit will react as follows: Automatic exit from fast mute function; The unit will not return to the timer mute settings unless the power has been cycled.
­ 40 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Parameter P (Pump Parameter)
In normal modes of cooling, heating and electrical heating, the water pump will be started at least P04 time earlier and shut down 2 minutes later than the compressor. The water pump must be on for the entire duration of defrosting. The controller starts to inspect water flow switch after P04-10s. If the water flow switch is inspected as ON for 10s successively, the compressor can be started.

Compressor Pump

P04 P03 P02 P03 P02 P03 P02

2min P02 P03 P02

The ILAHP provides the ability to control the main and Domestic Hot Water circulators based upon the measured outdoor air temperature.
The value of parameter P01 controls the logic of the main circulator output when the outdoor temperature is below the value of parameter R40, the pump will operate according to the parameter P01. When the air temperature is above R40, the pump will revert to economy mode and always operate as if P01=1, where the pump shuts down two minutes after the compressor stops, and restarts only when the measured water temperature falls to the restart point.
The same logic applies to the DHW circulator function, according to the outdoor temperature and value of parameter R41.
If either or both of these functions is not desired, simply set the value of R40 or R41 to the maximum of 140°F. This will effectively shut off this feature.

­ 41 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Parameter R (Temperature Parameter)
When set to hot water mode and tank temperature<R01-R04, the unit will run in hot water mode until the target temperature of R01 is reached. When water tank temperatureR01+R05, the unit will exit hot water mode. The unit uses the hot water side to defrost when in defrosting. When set to heating mode and inlet water temperature<R02-R04, the unit will run in heating mode until the target temperature of R02 is reached. When inlet water temperature R02+R05, the unit will trun off. When set to heating mode and inlet water temperature >R03+R04, the unit will run in cooling mode until the target temperature of R03 is reached. When inlet water temperature R03+R05, the unit will turn off.
Compressor Short Cycle Protection In order to protect the compressor from short cycling and ensure proper oil circulation and return, the compressor will remain running at startup for a minimum of three minutes, and remain off for minimum of three minutes at shut-off, regardless of whether the temperature setpoint has been satisfied. The compressor can be restarted after 3min when switch OFF. It is applicable to all conditions.
ModBus BMS Controls Every ILAHP unit has the ability to communicate with Building Automation Systems (BMS) through ModBus. The “RS485” terminals on the main control board will be utilized for this feature. The table below lists all addresses available. It is important to note that some are read only while others can be changed and are writable functions. Prior to connecting to BMS the following steps need to be taken 1. Ensure the transmission format is set in the BMS when trying to connect. This includes baud rate, start bit, byte width, parity, and
stop bits. These can be found in the table below labeled “Transmission Format” 2. Connect the – wire (from the BMS) to the terminal labeled “RS485 -” in the ILAHP electrical cabinet and + wire (from the BMS)
to the terminal labeled “RS485 +” in the ILAHP electrical cabinet. Locate a GND (if required) and wire from BMS to a ground terminal in the ILAHP electrical cabinet. 3. Ensure that the ILAHP unit is in the “Master” mode set at the local controller through parameter H07. (to access H07 press the setting key, factory passcode= 66, system tab, change parameter H07 accordingly) 4. Ensure parameter H10 is set to the address of the unit being controlled (if it’s the first unit H10 = 1, 2nd unit H10 = 2 etc…). To access parameter H15 press the settings key, passcode= 66, system tab, change parameter H10 accordingly). 5. Place a jumper on the “Remote ON/OFF” terminals located at the main board connections. Important Note: All temperatures values in the MODBUS registers are stored as tenths of a degree Celsius, regardless of whether the unit is set to display Fahrenheit or Celsius. Therefore, a temperature value such as register 1158 = Heating Target Temperature may be stored as 500. Divide this value by 10 and you get 50.0°C. To determine the equivalent value in Fahrenheit, multiply this value by 9/5, to get 90, then add 32. The Fahrenheit temperature is 122°F. If you wish to change the target temperature to 115°F, first subtract 32 to get 83, then multiply by 5/9. The Celsius temperature is 46.1°C, multiply this by 10 and enter the value 461. When a value represents a difference between two temperatures, such as register 1160, Start temperature differential, the conversion from Celsius to Fahrenheit is simply, multiply by 9/5, and from Fahrenheit to Celsius is multiply by 5/9. For example, if the default value is 36, divide this by 10 and it represents 3.6 deg Celsius difference, multiply by 9/5 to get 6.5 deg Fahrenheit difference. Conversely, if you want to set this value to 5 deg Fahrenheit differential, multiply by 5/9 to get 2.8 deg Celsius differential. Divide this by 10, and set the register value to 28.
­ 42 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump
Modbus RTU Protocol

1. Transmission Format
Baud Rate Start bit
Byte width Parity
Stop bits Unit address

9600bps 1 8 N 1 H10

2. Packet Format Address
16bits

Function
16bits 03:Function of reading multi registers 16:Function of presenting multi registers 06: Fuction of presenting single

Data N*16bits

CRC checksum 16bits

3. Data types

Data Types Description

TEMP

Important Note: All temperatures values in the MODBUS registers are stored as tenths of a degree Celsius, regardless of whether the unit is set to display Fahrenheit or Celsius. Therefore, a temperature value such as Heating Target Temperature may be stored as 500. Divide this value by 10 and you get 50.0°C. To determine the equivalent value in Fahrenheit, multiply this value by 9/5, to get 90, then add 32. The Fahrenheit temperature is 122°F. When a value represents a difference between two temperatures, such, Start temperature differential, the conversion from Celsius to Fahrenheit is simply, multiply by 9/5, and from Fahrenheit to Celsius is multiply by 5/9. For example, if the default value is 36, divide this by 10 and it represents 3.6 deg Celsius difference, multiply by 9/5 to get 6.5 deg Fahrenheit difference. Conversely, if you want to set this value to 5 deg Fahrenheit differential, multiply by 5/9 to get 2.8 deg Celsius differential. Divide this by 10, and set the register value to 28.

DIGI1 DIGI2 DIGI3 DIGI4 DIGI5 DIGI6 DIGI9

No symbol byte,unit :1,When show 123,the data transmission is 123; No symbol byte,unit :10,When show 1230,the data transmission is 123; No symbol byte,unit :100,When show 12300,the data transmission is 123; No symbol byte,unit :5,When show 10,the data transmission is 2; No symbol byte,unit :0.1,When show 12.3,the data transmission is 123; No symbol byte,unit :0.001,When show 0.123,the data transmission is 123; No symbol byte,unit :0.01,When show 0.12,the data transmission is 12;

4. Modbus Address

Address Function Number

1011

03/16

ON/OFF

Content

mode read/write

1012

03/16

Mode

read/write

1013 1014 1015

03/16 03/16 03/16

Reserved Reserved Reserved

read/write read/write read/write

1016

03/16

Manual control

read/write

1017
1018
1019 1020 1021 1022 1023 1024 1025 1026

03/16

03/16

H01

03/16

03/16

03/16

H05

03/16

03/16

H07

03/16

H10

03/16

03/16

Reserved if with disable automatic restart (0-no/1yes) Reserved Reserved Cooling Mode Reserved Controler choice Unit address Reserved Reserved

read/write
read/write
read/write read/write read/write read/write read/write read/write read/write read/write

1027

03/16

H27

EVI enabled

read/write

1028 1029 1030 1031

03/16

H28

03/16

H21

03/16

H22

03/16

Hot water mode enable Temperature unit Silence mode Reserved

read/write read/write read/write read/write

Default Description 0-OFF/1-ON
H05=1:0-Hot water/1-Heating/2-Cooling/3-Hot water+heating/4-Hot water+Cooling H05=0:0-Hot water/1-Heating/3-Hot water+heating

Remark DIGI1
DIGI1

bit0:Manual defrost(0-off 1-on) bit1:Mute flag bit (0-off 1-on) bit2:A key manual heating (0-off 1-on)

1

0-no/1-yes

1

0-No/1-Yes

0

0-display control 1-remote control

1

1~32

0-no EVI

3

1-EVI on cooling 2-EVI on heating

3-EVI both heating and cooling

1

0-no/1-yes

0

0-°C/1-F

1

0-no/1-yes

DIGI1
DIGI1
DIGI1 DIGI1 DIGI1
DIGI1 DIGI1 DIGI1 DIGI1

­ 43 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

Address Function Number

Content

1032

03/16

H18

Electric heater energy stage

1033 1034
1035
1036 1037 1038 1039 1040

03/16

H20

03/16

H29

03/16

H25

03/16

H30

03/16

A03

03/16

A04

03/16

A05

03/16

A06

3-way valve polarity Model running parameter code Control temp chioce when heat/cool mode Hydraulic module enable Heat pump shutdown ambient temp Antifreeze setting temp Antifreeze setting temp difference Exhaust temp protect setting

mode
read/write
read/write read/write
read/write
read/write read/write read/write read/write read/write

1041

03/16

H31

Water pump type

read/write

1042 1043 1044
1045
1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059
1060
1061
1062
1063 1064 1065
1066
1067
1068
1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085

03/16

A11

03/16

03/16

03/16

H32

03/16

03/16

03/16

03/16

03/16

03/16

03/16

A21

03/16

A22

03/16

03/16

03/16

03/16

03/16

03/16

F01

03/16

F02

03/16

03/16

F03

03/16 03/16 03/16

03/16

F05

03/16

03/16

F06

03/16

03/16

03/16

03/16

03/16

03/16

F10

03/16

03/16

03/16

03/16

03/16

03/16

03/16

F18

03/16

03/16

F19

03/16

03/16

low pressure sensor enable Reserved Reserved Force running time of DHW change to heating Reserved Reserved Reserved Reserved Reserved Reserved Ambient/Suction/Coil Sensor type Antifreeze min temp setting Reserved Reserved Reserved Reserved Reserved Fan motor type Coil temp setting when fan high speed on cool mode Reserved Coil temp setting when fan low speed on cool mode Reserved Reserved Reserved Coil temp setting when fan high speed on heat mode Reserved Coil temp setting when fan low speed on heat mode Reserved Reserved Reserved Reserved Reserved Fan quantity Reserved Reserved Reserved Reserved Reserved Reserved Fan motor min Speed in cooling Reserved Fan motor min Speed in Heating Reserved Reserved

read/write read/write read/write
read/write
read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write
read/write
read/write
read/write
read/write read/write read/write
read/write
read/write
read/write
read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write

Default Description

1-Electric heater stage 1

3

2-Electric heater stage 2

3-Electric heater stage 3

0

0-ON on hot water mode/1-OFF on hot water mode

0

0~20

Remark DIGI1
DIGI1 DIGI1

0

0-outlet water temp./1-room temp.

DIGI1

0 -25°C 4°C 3°C 120°C
0
0

0-no,1-yes -40.0~10.0°C A22~10.0°C 1.0~50.0°C 60.0~130.0°C 0-not water flow function 1- Grundfos 25-75 2- Grundfos 25-105 3- Grundfos 25-125 0-no,1-yes

DIGI1 TEMP1 TEMP1 TEMP1 TEMP1
DIGI1

120

1~180min

DIGI1

0

0-5K/1-2K

4°C

-20°C~10°C

DIGI1 TEMP1

3 50°C

1-Double speed motor/3-DC fan motor -15.0~60.0°C

10°C -15.0~60.0°C

10°C -15.0~60.0°C 20°C -15.0~60.0°C

DIGI1 TEMP1 TEMP1
TEMP1 TEMP1

0

0-single/1-double

DIGI1

300r

300~1300

300r

300~1300

DIGI1 DIGI1

­ 44 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

Address Function Number

1086

03/16

F21

1087

03/16

F22

1088

03/16

1089

03/16

F23

1090

03/16

1101

03/16

1102

03/16

1103

03/16

F25

1104

03/16

F26

1105

03/16

1106

03/16

1107

03/16

1108

03/16

1109

03/16

1110

03/16

D01

1111

03/16

1112

03/16

D02

1113

03/16

D03

1114

03/16

D04

1115

03/16

1116

03/16

D07

1117

03/16

D08

1118

03/16

D09

1119

03/16

D10

1120

03/16

1121

03/16

D11

1122

03/16

1123

03/16

D12

1124

03/16

1125

03/16

1126

03/16

1127

03/16

1128

03/16

1129

03/16

1130

03/16

1131

03/16

E01

1132

03/16

E02

1133

03/16

E03

1134

03/16

1135

03/16

1136

03/16

1137

03/16

E07

1138

03/16

E08

1139

03/16

E09

1140

03/16

E10

1141

03/16

1142

03/16

1143

03/16

E13

1144

03/16

E14

1145

03/16

1146

03/16

1147

03/16

E17

1148

03/16

E18

1149

03/16

1150

03/16

1151

03/16

1152

03/16

G01

1153

03/16

G02

1154

03/16

G03

1155

03/16

G04

1156

03/16

G05

1157

03/16

R01

Content Timer mute Manual-control Fan Speed Reserved DC fan rated speed REserved Reserved Reserved Cooling fan max speed Heating fan max speed Reserved Reserved Reserved Reserved Reserved Start defrosting setpoint Reserved Exit defrosting setpoint Defrosting cycle Max defrosting time Reserved Electric heater control Sliding defrost ambient temp Sliding defrost:ambient temp difference Sliding defrost:coil temp difference Reserved Sliding defrost:min coil temp Reserved Defrosting compressor frequency Reserved Reserved Reserved Reserved Reserved Reserved Reserved EEV1 EEV adjust mode EEV1 target superheat EEV1 EEV initial steps Reserved Reserved Reserved EEV min Steps Cooling initialSteps EVI1:adjustment mode EVI1:initial steps Reserved Reserved EVI target superheat EVI:min steps Reserved Reserved Defrost steps Target superheat for cooling Reserved Reserved Reserved Sterilize target temp Sterilize maintain time Sterilize start time Sterilize cycle Sterilize function Hot water target temp

mode read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write

Default Description

0

0-no/1-yes

0

0-no/1-yes

600r

300~1300

700r

300~1300

700r

300~1300

-7°C

-30~5.0°C

13°C 45min 8min

0.0~30.0°C 30~90Min 1~12 Min

0 2°C 14°C 10°C

0-no/1-yes -30~10.0°C 1~50.0°C 1~50.0°C

-30°C -30.0~50.0°C

70

30~90Hz

1

0-Manual/1-Auto

5

-20.0~20.0°C

350

0~500N

100

0~500N

200

0~500N

1

0-Manual/1-Auto

350

0~500N

3

-20.0~20.0°C

100

0~500N

480

10~500N

3

-20.0~20.0°C

63

60~70°C

0

0~60min

1

0~23h

30

1~30days

1

0-no/1-yes

55

R36-R37

­ 45 ­

Remark DIGI1 DIGI1 DIGI1
DIGI1 DIGI1
TEMP1 TEMP1 DIGI1 DIGI1 DIGI1 TEMP1 TEMP1 TEMP1 TEMP1 DIGI1
DIGI1 TEMP1 DIGI1
DIGI1 DIGI1 DIGI1 DIGI1
TEMP1 DIGI1
DIGI1 TEMP1
TEMP1 DIGI1 DIGI1 DIGI1 DIGI1 TEMP1

ILAHP Inverter Extreme Air-to-Water Heat Pump

Address Function Number

1158

03/16

R02

1159

03/16

R03

1160

03/16

R04

1161

03/16

R05

1162 1163 1164 1165 1166

03/16

R08

03/16

R09

03/16

R10

03/16

R11

03/16

R15

1167

03/16

R29

1168 1169 1170

03/16

R30

03/16

R31

03/16

R32

1171

03/16

R33

1172

03/16

R34

Content Heating target temp Cooling target temp Heating restart difference Heating constant temp downtime difference Min cooling setpoint Max cooling setpoint Min heating setpoint Max heating setpoint Exiting outlet water high temp difference Heating compensation-on low ambient temp Heating compensation- off low ambient temp Low-AT max-compensation aim Hot water compensation-on high ambient temp Hot water compensation-off high ambient temp Hot water compensation-on high ambient temp target temp

mode read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write
read/write read/write read/write
read/write
read/write

1173

03/16

R35

Electric heater functions

read/write

1174
1175
1176 1177 1178 1179 1180 1191 1192 1193 1194 1195
1196
1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1218 1219 1220 1221
1222
1223 1224 1225 1226 1227

03/16

R06

03/16

R07

03/16

R36

03/16

R37

03/16

03/16

03/16

03/16

03/16

R39

03/16

R40

03/16

R41

03/16

R16

03/16

R17

03/16

P01

03/16

P02

03/16

P03

03/16

03/16

P05

03/16

P06

03/16

03/16

03/16

03/16

03/16

03/16

03/16

03/16

03/16

03/16

C01

03/16

C02

03/16

C03

03/16

C04

03/16

C05

03/16

C06

03/16

C07

03/16

C08

03/16

C09

03/16

Cooling restart difference Cooling constant temp downtime difference Min hot water setpoint Max hot water setpoint Reserved Reserved Reserved Reserved Heating mode auto restart ambient temp Ambient temp of water pump running Ambient temp of hot water pump running Hot water restart difference Hot water constant temp downtime difference Water pump running mode Water pump running interval time Water pump running duration Reserved Hot water pump working mode Water pump manual function Reserved Reserved Reserved Timer function—start Timer function–hour start setting Timer function—closed Timer function–hour closed setting Timer function–minuter start setting Timer function–minuter closed setting Compressor manual frequency Compressor minimum frequency Compressor maximum frequency Compressor model selection Compressor minimum frequency of low ambient temp. (Cooling) Compressor frequency control mode Frequency resonance point 1 Frequency resonance point 2 Frequency resonance point 3 Reserved

read/write
read/write
read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write
read/write
read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write
read/write
read/write read/write read/write read/write read/write

Default Description

45

R10~R11

7

R08~R09

2

0~10°C

1

0~10°C

8

-30.0~R09°C

28

R08~80.0°C

15

-30.0~99.0°C

50

-30.0~99.0°C

2

0~15°C

-5

-35~4°C

Remark TEMP1 TEMP1 TEMP1
TEMP1
TEMP1 TEMP1 TEMP1 TEMP1 TEMP1
TEMP1

-23

-35~4°C

40

20~60°C

55

10~60°C

TEMP1 TEMP1 TEMP1

55

10~60°C

TEMP1

45

20~60°C

TEMP1

0

0-no use/1-water line electric heater /2-water tank electric heater

DIGI1

2

0.0~10.0°C

TEMP1

1

0.0~10.0°C

TEMP1

15

0~75°C

58

0~75°C

TEMP1 TEMP1

10

5~20°C

2

-10~20°C

2

-10~20°C

5

0~10°C

2

0~10°C

2

0-Normal/1-Economic/2-Interval

30

1~120min

3

1~30min

2

0-Normal/1-Economic/2-Interval

0

0-no,1-yes

0

0-NO/1-YES

0

0~23

0

0-NO/1-YES

0

0~23

0

00~59

0

00~59

0

0~120Hz

30

20~60Hz

90

30~120Hz

0

0~99

50

0~60Hz

1

1-120

0

0~120

0

0~120

0

0~120

TEMP1 TEMP1 TEMP1 TEMP1
TEMP1
DIGI1 DIGI1 DIGI1
DIGI1 DIGI1
DIGI1 DIGI1 DIGI1 DIGI1 DIGI1 DIGI1 DIGI1 DIGI1 DIGI1 DIGI1
DIGI1
DIGI1 DIGI1 DIGI1 DIGI1

­ 46 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

Address Function Number

1228

03/16

R42

1229

03/16

R43

1230

03/16

R44

1231

03/16

R45

1232
1233 1234 1235
1236
1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 2011 2012 2013
2014
2015 2016 2017 2018

03/16
03/16 03/16 03/16
03/16
03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 03/16 16 16 16
16
16 16 16 16

R46 O124

Content Max water heating temp. Max water heating temp.(Under Low Temp.) Max Water heating temp.(Under High Temp.) Electric heater start(No Delay) ambient temp) the temp restart difference of the outlet water overheat protection Reserved Weather compensation slope Weather compensation offset Weather compensation function enable during heating Reserved Reserved Reserved Reserved Reserved Reserved Reserved Timer mute function on enable Timer mute on hour Timer mute on minute Timer mute function off enable Timer mute off hour Timer mute off minute system time enable system current minute system current hour system current day system current month system current year 724 hours timer on/off Sunday 724 hours timer on/off Sunday 724 hours timer on/off Monday 724 hours timer on/off Monday 724 hours timer on/off Tuesday 724 hours timer on/off Tuesday 724 hours timer on/off Wednesday 724 hours timer on/off Wednesday 724 hours timer on/off Thursday 724 hours timer on/off Thursday 724 hours timer on/off Firday 724 hours timer on/off Firday 724 hours timer on/off Saturday 724 hours timer on/off Saturday Reserved Unit state Unit mode Temperature vlaue after limiting Temperature vlaue after weather compensation during heating Reserved Reserved Reserved DTU state

mode read/write
read/write
read/write
read/write
read/write
read/write read/write read/write
read/write
read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read read read
read
read read read read

Default Description

55

20~60°C

50

20~60°C

40

20~60°C

-10

-50~20°C

5

0~15

0~3.5 0~85
0-no,1-yes

Remark TEMP1 TEMP1
TEMP1
TEMP1
TEMP1
DIGI5 TEMP1 DIGI1

0-off/1-on 0-23h 0-59min 0-off/1-on 0-23h 0-59min system time enable system current minute system current hour system current day system current month system current year / / / / / / / / / / / / / /

DIGI1 DIGI1 DIGI1 DIGI1 DIGI1 DIGI1

0-off/1-on 0-cooling/1-heating/2-defrost/3-sterilize/4-hot water

DIGI1 DIGI1 TEMP1
TEMP1

0-OFF/1-ON

DIGI1

­ 47 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

Address Function Number

Content

mode

2019

16

O01~014 Load output

read

2020

16

O15

EEV Steps

read

2021

16

O16

Reserved

read

2022

16

O17

EVI EEV Steps

read

2023

16

O18

Reserved

read

2024

16

Reserved

read

2025

16

Reserved

read

2026

16

Reserved

read

2027

16

Reserved

read

2028

16

Reserved

read

2029

16

Reserved

read

2030

16

Reserved

read

2031

16

Reserved

read

2032

16

Compressor accumulative running time read

2033

16

Reserved

read

2034

16

S01~S10 Switch state

read

2035

16

T40

Heating return water temp

2036

16

T41

Heating outlet watre temp

2037

16

T42

Mixing outlet water temp

2038

16

T43

DHW return water temp

2039

16

T44

DHW outlet water temp

2040

16

Reserved

2041

16

Reserved

2042

16

T36

Compressor currents

2043

16

T37

DC line voltage

2044

16

T38

IPM temp

2045

16

T01

Inlet water temp

2046

16

T02

Outlet water temp

2047

16

T08

DHW tank water temp

2048

16

T04

Ambient temp

2049

16

T03

Coil temp

2050

16

Reserved

2051

16

T05

Suction temp

2052

16

Reserved

2053

16

T12

Discharge temp

read read read read read read read read read read read read read read read read read read read
­ 48 ­

Default Description bit0:O01 compressor output (0-OFF/1-ON) bit1:Reserved bit2:O03 fan high speed output (0-OFF/1-ON) bit3:O04 fan low speed output (0-OFF/1-ON) bit4:O05 water pump output (0-OFF/1-ON) bit5:O06 hot water pump output (0-OFF/1-ON) bit6:O07 4 way valve 1 (0-OFF/1-ON) bit7:O08 Electric heater stage 1 (0-OFF/1-ON) bit8:O09 Electric heater stage 2 (0-OFF/1-ON) bit9:O10 3 way valve (0-OFF/1-ON) bit10:O11 alarm output (0-OFF/1-ON) bit11:O12 Crankcase Heater (0-OFF/1-ON) bit12:O13 Pan heater (0-OFF/1-ON) bit13:O21 heating water pump (0-OFF/1-ON) bit14:O22 Hydraulic module water loop electric heater (0-OFF/1-ON) bit15:O23 Hydraulic module DHW tank electric heater (0-OFF/1-ON)
0~500N
0~500N
0~500N
0~500N

Remark
DIGI1
DIGI1 DIGI1 DIGI1 DIGI1

DIGI1

bit0:S01 high pressure switch (0-on/1-off) bit1:S02 Low pressure switch (0-on/1-off) bit2:S03 water flow switch (0-on/1-off) bit3:S04 Electric heater overheat switch (0-on/1off) bit4:S05 Remote ON/OFF (0-on/1-off) bit5:S06 Remote heating/cooling (0-on/1-off) bit6:S07 hot water switch (0-on/1-off) bit7:Reserved bit8:Reserved bit9: Heating/cooling ON/OFF (0-on/1-off) bit10:Reserved bit11:Reserved bit12:Reserved bit13:Reserved bit14:Reserved bit15:Reserved

DIGI1

real test value real test value real test value real test value real test value real test value real test value real test value
real test value
real test value

DIGI5 DIGI1 TEMP1 TEMP1 TEMP1 TEMP1 TEMP1 TEMP1 TEMP1 TEMP1 TEMP1 TEMP1

ILAHP Inverter Extreme Air-to-Water Heat Pump

Address Function Number

2054

16

2055

16

T06

2056

16

2057

16

T35

2058

16

T09

2059

16

2060

16

2061

16

T33

2062

16

T34

2063

16

T10

2064

16

T11

2065

16

2066

16

2067

16

2068

16

2069

16

T15

2070

16

2071

16

T30

2072

16

T31

2073

16

T32

2074

16

T27

2075

16

T28

2076

16

T29

2077

16

T39

2078

16

2079

16

2080

16

Content Reserved Anti-freeze temp Reserved AC input currents Room temp Reserved Reserved IPMoverheat syop running Acinput voltage EVI inlet temp EVI outlet temp Reserved Reserved Reserved Reserved low pressure value Reserved Compressor frequency setting Compressor running frequency setting inverter board max frequency DC fan 1 speed DC fan 2 speed DC fan target speed Water flow Reserved Reserved Reserved

2081

16

Failure 7

2082

16

Failure 8

mode read read read read read read read read read read read read read read read read read read read read read read read read read read read
read
read

Default Description
real test value
real test value real test value
real test value real test value real test value real test value
real test value real test value real test value real test value real test value real test value
bit0: IPM overheat bit1: compressor start failure bit2: compressor over currents bit3: Input voltage phase loss bit4: IPM current sampling fault bit5: Overheat protection of drive board devices bit6: PFC failure bit7: DC busbar overvoltage bit8: DC bus undervoltage bit9: AC input voltage undervoltage bit10: AC input overcurrent shutdown bit11: Input voltage sampling fault bit12: DSP and PFC communication failure bit13: Drive plate temperature fault bit14: DSPand communication board communication failure bit15: mainboard communication failure bit0: IPM overheat stop bit1:Reserved bit2:Reserved Bit3: 15VDV undervoltage bit4:Reserved bit5:Reserved bit6:Reserved bit7:Reserved bit8:Reserved bit9:Reserved bit10:Reserved bit11:Reserved bit12:Reserved bit13:Reserved bit14:Reserved bit15:Reserved

Remark TEMP1 TEMP1 TEMP1 DIGI5 TEMP1 TEMP1 TEMP1 TEMP1 DIGI1 TEMP1 TEMP1 TEMP1 TEMP1 DIGI5 DIGI5 DIGI5 DIGI5 DIGI1 DIGI1 DIGI1 DIGI1 DIGI1 DIGI1 DIGI9
DIGI1
DIGI1

­ 49 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

Address Function Number

Content

2083

16

Failure 9

2084

16

2085

16

Failure 1

2086

16

Failure 2

mode read read read
read

Default Description bit0: Voltage electromechanical current down frequency alarm bit1: Compressor weak magnetic protection alarm bit2: Power unit overheating alarm bit3: Reserved bit4: AC input current down alarm bit5: EEPROM failure warning bit6: Reserved bit7: / bit8: Reserved bit9: Reserved bit10:Reserved bit11:Reserved bit12:Reserved bit13:Reserved bit14:Reserved bit15:Reserved

Remark DIGI1

DIGI1

bit0:Reserved bit1:Reserved bit2:Heating return water temp sensor failure (0-no/1-yes) bit3:Heating outlet water temp sensor failure (0-no/1-yes) bit4:High pressure protection (0-no/1-yes) bit5:Reserved bit6:Low pressure protection (0-no/1-yes) bit7:Reserved bit8:water flow protection (0-no/1-yes) bit9:Electric heating overload protection (0-no/1-yes) bit10:Winter first class anti-freeze protection (0-no/1-yes) bit11:Winter secondary class anti- freeze protection (0-no/1-yes) bit12:anti-freeze protection (0-no/1-yes) bit13:Reserved bit14:Room temp (0-no/1-yes) bit15:Reserved

DIGI1

bit0:Exhaust temperature overprotection (0-no/1yes) bit1:Reserved bit2:Reserved bit3:Fan 1 overload speed limit (0-no/1-yes) bit4:Fan 2 overload speed limit (0-no/1-yes) bit5:Reserved bit6:Outlet water over heat (0-no/1-yes) bit7:Mixing outlet water temp sensor failure(0-no/1yes) bit8:Hot water return temp sensor failure (0-no/1yes) bit9:Hot water outlet water temp sensor failure(0no/1-yes) bit10:Reserved bit11:Reserved bit12:Reserved bit13:Reserved bit14:Reserved bit15:Reserved

DIGI1

­ 50 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

Address Function Number

Content

2088

16

Failure 4

2089

16

Failure 5

2090

16

Failure 6

2101

16

2109

16

2110

16

2111

16

2112

16

2113

16

2114

16

21152180

16

Reserved Reserved Reserved Reserved Reserved Reserved Reserved
Reserved

mode
read
read
read
read read read read read read read read

Default Description bit0:Discharge over heat protection 3 times (0-no/1yes) bit1:Reserved bit2:Reserved bit3:Reserved bit4:Outlet water overtemp protection 3 times (0-no/1-yes) bit5:Reserved bit6:Reserved bit7:Reserved bit8:Reserved bit9:Reserved bit10:Reserved bit11:Reserved bit12:Reserved bit13:Reserved bit14:Reserved bit15:Reserved
bit0:Inlet water temp failure (0-no/1-yes) bit1:Outlet water temp failure (0-no/1-yes) bit2:Coil temp failure (0-no/1-yes) bit3:Ambient temp failure (0-no/1-yes) bit4:Suction temp failure (0-no/1-yes) bit5:Anti-freeze temp sensor failure (0-no/1-yes) bit6:Reserved bit7:Reserved bit8:Reserved bit9:EVI inlet temp failure (0-no/1-yes) bit10:EVI outlet temp failure (0-no/1-yes) bit11:discharge temp failure (0-no/1-yes) bit12:Reserved bit13:Syetem 1 pressure sensor failure (0-no/1-yes) bit14:low ambient temp failure (0-no/1-yes) bit15:Reserved
bit0:Reserved bit1:Reserved bit2:Reserved bit3:Reserved bit4:Reserved bit5:Reserved bit6:Reserved bit7:Reserved bit8:Hot water temp failure (0-no/1-yes) bit9:Reserved bit10:Reserved bit11:Fan 1 failure (0-no/1-yes) bit12:Fan 2 failure (0-no/1-yes) bit13:Communication failure(main board with fan motor module board) (0-no/1-yes) bit14:Reserved bit15:Communication failure(main board with fan motor 2 module board) (0-no/1-yes)

Remark DIGI1 DIGI1 DIGI1

­ 51 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

SECTION 7:

TROUBLESHOOTING

ILAHP Error Codes

Error Code

Description

Cause

Solution

P01 Inlet Water Temp Sensor

Sensor failed open or shorted. Wiring fault Correct wiring or replace 5k sensor T1

P02 Outlet Water Temp Sensor P032 DHW Water Temp Sensor P04 Ambient Air Temp Sensor

Sensor failed open or shorted. Wiring fault Sensor failed open or shorted. Wiring fault Sensor failed open or shorted. Wiring fault

Correct wiring or replace 5k sensor T2
Correct wiring or replace 5k sensor (optional component)
Correct wiring or replace 5k sensor T6

P153 OD Coil Temp Sensor

Sensor failed open or shorted. Wiring fault Correct wiring or replace 5k sensor T5

P17 Suction Line Temp Sensor

Sensor failed open or shorted. Wiring fault Correct wiring or replace 5k sensor T4

P181 Discharge Line Temp Sensor P182 Discharge Line Overtemp P001 EVI Inlet Temp Sensor

Sensor failed open or shorted. Wiring fault Excessive discharge Temp, over A06 Sensor failed open or shorted. Wiring fault

Correct wiring or replace 50k sensor T3
Excessive Suction Superheat or compressor fault Default value of A06 is 239°F
Correct wiring or replace 5k sensor T8

P002 EVI Outlet Temp Sensor TP Low Ambient Protection
E032 Flow Switch protection E04 Aux heater overtemp
E051 Compressor overload E08 Loss of communication with Remote Display

Sensor failed open or shorted. Wiring fault Correct wiring or replace 5k sensor T9

Outdoor temperature is below A03 setpoint

Normal operation based upon parameter setting

Water flow is below acceptable level

Ensure pump and plumbing are cabable of achieveing required flowrate

Safety switch has tripped or circuit failed open

Determine cause of overtermp, correct or repair circuit

Excessive current draw due to high discharge temperature or low input voltage

Ensure 220-240V to the unit under max load, sufficient water flow (if in heating) or outdoor air flow (if in cooling)

Remote display failure or wiring fault

Correct wiring or replace Remote Display VT1

E081 Loss of communication with Fan Speed Control Fan Speed Control failure or wiring fault

Correct wiring or replace control board IC3

E11 High Discharge Pressure

High discharge pressure or switch or circuit If fault remains constant, correct wiring or

failed open

replace switch S3

E12 Low Suction Pressure

Low discharge pressure or switch or circuit If fault remains constant, correct wiring or

failed open

replace switch S2

E171 Freeze Protection

Water temperature below 63°F When Ambient Check water temperature. If it is over 63°F,

T is below 36°F

check or replace 5k sensors T6 or T7

E19 Primary Freeze Protection

Inlet Water Temperature between 32° and 36°F and Ambient T is below 32°F

Check water temperature. If it is over 36°F, check or replace 5k sensors T6 or T7

F12

Loss of communication with Compressor speed Loose or broken wiring/Failed compressor

control board

inveter board.

Correct wiring or replace compressor inverter board.

E29 Secondary Freeze Protection

Inlet Water Temperature below 32° and Ambient T is below 32°F

Check water temperature. If it is over 36°F, check or replace 5k sensors T6 or T7

F031 DC Fan motor #1 Failure

Wiring fault or fan motor #1 has failed

Check and repair wiring, replace fan motor.

F032 DC Fan motor #2 Failure

Wiring fault or fan motor #2 has failed

Check and repair wiring, replace fan motor.

Maintenance for Air to Water Heat Pumps
Like all mechanical equipment, air to water heat pumps require maintenance to maintain peak performance and reliability. Refer to
the following table for maintenance and inspection schedules.

Time Period Task

Description

Annually

Maintain Glycol % Over time the % of glycol will degrade leaving the fluid in the system vulnerable to freezing and contaminants.

Once a year the fluid should tested using approved test strips for glycol %. If glycol % is below the minimum

required for your system design (see install manual for specific % required) the appropriate amount (based on

volume) of proper glycol should be added to bring the system back to the minimum. If necessary, the system

should be flushed completely, and fresh glycol/water mix should fill the system. If an autofill system is installed,

it must be filled with the appropriate concentration.

Seasonally* Clean coil

Once a season the exposed coil at the outdoor unit should be cleaned using appropriate and approved HVAC

coil cleaning solvents ONLY. Use of non-approved solvents can severely damage the system and can impact

warranty eligibility.

Check for loose wires Verify all wires are still intact and are not making loose connections. Repair as needed

As Needed

Clear condensate Clear debris

Under the outdoor coil there are drain holes for condensate run off. Ensure the path is clear of obstructions
that could cause a backup of condensate and potential freezing in freezing conditions. The heat pump should be clear of all debris around the unit to ensure proper air flow

Rodent damage

Inspect all wiring cabinets, compressor cabinets and panels for any rodent damage. Repair/replace as needed and make provisions to keep rodents out of heat pump cabinets.

*Seasonally is defined at the end of the equipment’s operating season. If the unit is used for cooling only, then inspections should be

done prior to startup of next season. If unit is used for heating and cooling applications, then inspections/tasks should be completed

during the in between time when unit is ready to change from cooling to heating and heating to cooling.

­ 52 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

SECTION 8:

REPLACEMENT PARTS

SEE VIEW

31 32 33 34 35 36 44 A

1

4

30
29 5
28 6
27

25 24 23 22 21
20 19 18 17 16

8 10
11 1 13 12

A
IC3 IC1
IC5

46 47 48 49 50 37

41 4

38

KM1

42

39

PTC

40
IC4

­ 53 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

Replacement Parts

NO

Part Number

1

45W05-WG1371-01

2

45W41-WG1372-01

3

45W11-WG1211-01

4

45W40-WG1373-01

5

45W50-WG1374-01

6

45W41-WG1375-01

7

45W05-WG1376-01

8

45W41-WG1377-01

9

45W41-WG1378-01

10

45W41-WG1379-01

11

45W41-WG1380-01

12

45W41-WG1381-01

13

45W50-WG1382-01

14

45W28-WG1383-01

15

45W40-WG1384-01

16

45W40-WG1385-01

17

45W28-WG1220-02

18

45W28-WG1386-01

19

45W27-WG1387-01

20

45W40-WG1388-01

21

45W40-WG1389-01

22

45W11-WG1347-01

23

45R2001-3605

24

45W27-WG1214-01

25

45W28-WG1390-01

27

45W34-WG1200-01

28

45W31-WG1391-01

29

45W19-WG1197-01

30

45W32-WG1392-01

31

45W41-WG1393-01

32

45W41-WG1394-01

33

45W50-WG1395-01

34

45W41-WG1396-01

35

45W33-WG1397-01

36

45W41-WG1398-01

37

45W09-WG1225-01

38

45W41-WG1399-01

39

45W41-WG1400-01

40

45W09-WG1401-01

41

45W09-WG1402-01

42

45W09-WG1403-01

43

45W09-WG1404-01

44

45W41-WG1405-01

45

45W09-WG1406-01

46

45W41-WG1407-01

47

45W09-WG1359-01

48

45W09-WG1408-01

49

45W09-WG1358-01

50

45W09-WG1409-01

51

45460-WG1410-01

52

45W09-WG1542-01

53

W09-WG1545-01

54

45W09-WG1415-01

55

45W09-WG1544-01

N/A

45Y11-WG1417-01

N/A

45R2000-3242

N/A

45W09-WG1413-01

N/A

45W09-WG1543-01

Description
Oval Grommet Rear Compressor Access Panel Flow Switch Water Outlet Manifold Refrigerant to Water Heat Exchanger Heat Exchanger Support Wiring Access Split Bushing Compressor End Panel Heat Exchanger Support Bracket Base Vertical Separator Panel EVI Heat Exchanger Support Bracket EVI Heat Exchanger Check Valve U-Bend Tee Tee
Reversing Valve EVI EEV
Refrigerant Filter Access Valve Tee
Low Pressure Limit Switch High Pressure Limit Switch Refrigerant Filter Primary EEV Fan Blade Axial Fan Motor Access Panel Handle Fan Guard Fan Compartment Panel Component Access Panel Finned Tube Coil Unit Cover Panel EVI Compressor Electrical Box Support Bracket Four Pole Terminal Cable Clamp Cable Clamp EMI Filter Four Pole Terminal Pump Relay Compressor Speed Inverter Board Electrical Compartment Cover Control Board Electrical Components Cabinet 2 Pole Feed Through Terminal 2 Pole Feed Through Terminal 1 Pole Feed Through Terminal Terminal End Cap Display Module, Fan Speed Control 12VDC POWER SUPPLY THERMISTOR, PTC, COMPRESSOR START
CONTACTOR, COMPRESSOR START
Cable, Remote Display TEMPERATURE SENSOR, 5K NTC TEMPERATURE SENSOR, 50K NTC TEMPERATURE SENSOR, DHW TANK, 10K NTC

Wiring Diagram Callout S1
V3 V2
S2 S3 V1 M2, M3
M1 TS1 IC4 TS2, TS3 K2 IC2 IC1
VT1 IC3 IC5 PTC KM1 T1, T2, T4, T5, T6, T7, T8, T9 T3

­ 54 ­

ILAHP Inverter Extreme Air-to-Water Heat Pump

Limited Warranty Statement

SpacePak “Solstice Inverter”* Series Air-to-Water Heat Pumps
Subject to the terms and conditions of this Limited Warranty Statement (the “Limited Warranty”), SpacePak warrants to the original purchaser of the “Solstice Inverter” Series that:

1. The parts are warranted for a period of two (2) years to the original owner of the System (as such term is defined in part (4) below). If any parts should prove defective due to improper workmanship and/or material for a period of two (2) years from the date of installation, SpacePak will replace any defective part without charge for that part. Replacement parts are warranted for the remainder of the original 2-year warranty period. Parts used as replacement may be of like kind and quality and may be new or remanufactured. Defective parts must be available for SpacePak in exchange for the replacement parts and become the property of SpacePak.
2. The compressor is warranted for a period of five (5) years to the original owner of the System. If the compressor should prove defective due to improper workmanship and/or material for a period of five (5) years from the date of installation, SpacePak will replace the defective compressor without charge for the compressor. Replacement compressors are warranted for the remainder of the original 5-year warranty period. Compressors used for replacement may be of like kind and quality and may be new or remanufactured. Defective compressors must be made available to SpacePak in exchange for the replacement compressor and become the property of SpacePak.
3. Notwithstanding the foregoing, if the System is installed in a residential single-family home by a SPACEPAK CERTIFIED CONTRACTOR the parts will be warranted for five (5) years and compressor will be warranted for a period of ten (10) years, to the original owner, so long as the original owner resides in the home. Specifically, if any parts and/or the compressor should prove defective due to improper workmanship and/or material for the period listed above from the date of installation, SpacePak will replace any defective parts or compressor without charge for the part or compressor. The replacement parts and/or compressor are warranted for the remainder of the original warranty period. Parts and/or compressors used for replacement may be of like kind and quality and may be new or remanufactured. Defective parts and/or compressors must be made available to SpacePak in exchange for the replacement parts and become the property of SpacePak.
4. For purposes of this Solstice Inverter” Series Limited Warranty, as used herein, the term “System” shall mean the Solstice Inverter outdoor and indoor components connected via refrigerant piping and electrical wiring purchased on or after February 1, 2021, (i) sold from a licensed HVAC representative of SpacePak (and not an unauthorized third party) to the original owner, (ii) installed by such contractor in accordance to local and National regulations in the continental U.S., Alaska, Hawaii, and Canada; and (iii) registered on SpacePak’s website located at www.SpacePak. com/warranty)
   *For any Solstice equipment that is non-inverter, please refer to warranty located in the equipment original installation manual.
   SpacePak Small Duct High Velocity Air Handlers and Hydronic Fan Coils
   Subject to the terms and conditions of this Limited Warranty Statement (the “Limited Warranty”), SpacePak warrants to the original purchaser of the Small Duct High Velocity Air Handlers and hydronic fan coils that:
5. The parts are warranted for a period of one (1) year to the original owner of the System (as such term is defined in part (3) below). If any parts should prove defective due to improper workmanship and/or material for a period of one (1) year from the date of installation, SpacePak will replace any defective part without charge for that part. Replacement parts are warranted for the remainder of the original 1-year warranty period. Parts used as replacement may be of like kind and quality and may be new or remanufactured. Defective parts must be available for SpacePak in exchange for the replacement parts and become the property of SpacePak.
6. Notwithstanding the foregoing, if the System is installed in a residential single-family home by a SPACEPAK CERTIFIED CONTRACTOR the parts will be warranted for five (5) years, to the original owner, so long as the original owner resides in the home. Specifically, if any parts should prove defective due to improper workmanship and/or material for the period listed above from the date of installation, SpacePak will replace any defective parts or compressor without charge for the part or compressor. The replacement parts are warranted for the remainder of the original warranty period. Parts used for replacement may be of like kind and quality and may be new or remanufactured. Defective parts must be made available to SpacePak in exchange for the replacement parts and become the property of SpacePak.
7. For purposes of this Small Duct High Velocity Air Handlers and hydronic fan coils limited warranty, as used herein, the term “System” shall mean the “SpacePak Small Duct High Velocity Air Handlers, hydronic fan coils purchased on or after February 1, 2021, (i) sold from a licensed HVAC representative of SpacePak (and not an unauthorized third party) to the original owner, (ii) installed by such contractor in accordance to local and National regulations in the continental U.S., Alaska, Hawaii, and Canada; and (iii) registered on SpacePak’s website located at www.SpacePak. com/warranty)
   ­ 55 ­

SpacePak Buffer Tanks
The “Manufacturer” warrants to the original owner at the original installation site that the Hydronic Buffer Tanks (the “Product”) will be free from defects in material or workmanship for a period not to exceed ten (10) years from the startup, provided the product is installed in accordance with the manufacturers installation instructions. If upon examination by the Manufacturer the Product is shown to have a defect in material or workmanship during the warranty period, the Manufacturer will repair or replace, at its option, that part of the Product which is shown to be defective.
The following items apply to each Limited Warranty offered by SpacePak.
4) NO LABOR. Each Limited Warranty offered by SpacePak does NOT include labor or any other costs incurred for service, maintenance, repair, removing, replacing, installing, complying with local building and electric codes, shipping or handling, or replacement of the System/Products, compressors or any other parts. For items that are designed to be maintained or replaced by the original owner, the original owner is solely responsible for all labor and other costs of maintaining, installing, replacing, disconnecting or dismantling the System/ Products and parts in connection with owner-required maintenance. Please consult the applicable technical documentation for regularly suggested maintenance procedures.
5) PROPER INSTALLATION. This Limited Warranty applies only to Systems/Products that are sold by SpacePak HVAC representatives, installed by contractors who are licensed for HVAC installation under applicable local and state law, and who install the Systems/Products in accordance with (i) all applicable building codes and permits: (ii) SpacePak’s installation and operation instructions: and (iii) good trade practices.
6) BEFORE REQUESTING SERVICE, please review the applicable technical documentation to insure proper installation and correct customer control adjustment for the System/Products. If the problem persists, please arrange for warranty service. a. TO OBTAIN WARRANTY SERVICE: i. Contact the licensed contractor who installed the System/Products or the nearest licensed contractor, dealer, or distributor (whose name and address may be obtained on our website at www.SpacePak.com of any defect within the applicable warranty time period. ii. Proof of the installation date by a licensed contractor is required when requesting warranty service. Present the sales receipt, building permit or other document which establishes proof and date of installation. In the absence of acceptable proof, this Limited Warranty shall be deemed to begin one hundred twenty (120) days after the date of manufacture stamped on the System/Products. iii. This Limited Warranty applies only to System/Products purchased on or after February 1, 2021 only while the System/Products remains at the site of the original installation, and only to locations within the continental United States, Alaska, Hawaii and Canada. iv. Shipment, to the Manufacturer, of that part of the Product thought to be defective. Goods can only be returned with prior written approval from the Manufacturer. All returns must be freight prepaid. Determination, in the reasonable opinion of the Manufacturer, that there exists a defect in material or workmanship. b. THIS LIMITED WARRANTY DOES NOT COVER: property damages, malfunction or failure of the System/ Products, or personal injury caused by or resulting from: (a) accident, abuse, negligence or misuse; (b) operating the System/Products in a corrosive or wet environment, including those containing chlorine, fluorine or any other hazardous or harmful chemicals or environmental factors, including sea- or salt-water; (c) installation, alteration, repair or service by anyone other than a licensed contractor or other than pursuant to the manufacturer’s instructions; (d) improper matching of System/Products components; (e) improper sizing of the System/Products; (f) improper or deferred maintenance contrary to the manufacturer’s instructions; (g) physical abuse to or misuse of the System/Products (including failure to perform any maintenance as described in the Operation manual, or any System/ Products damaged by excessive physical or electrical stress; (h) System/Productss that have had a serial number or any part thereof altered, defaced or removed; (i) System/Products used in any manner contrary to the Operation Manual; (j) freight damage; or (k) events of force majeure or damage caused by other external factors such as lightning, power surges, fluctuations in or interruptions of electrical power, rodents, vermin, insects, or other animal- or pest-related issues. c. THIS LIMITED WARRANTY ALSO EXCLUDES: (a) SERVICE CALLS WHERE NO DEFECT IN THE SYSTEM/ PRODUCTS COVERED UNDER THIS WARRANTY IS FOUND: (b) System/Products installation or set-ups; (c) Adjustments of user controls; (d) System/Products purchased or installed outside the continental United States, Alaska, Hawaii and Canada; or (e) System/Products purchased or installed prior to February 1, 2021. Consult the operating instructions for information regarding user controls.
IN UNITED STATES: 260 NORTH ELM ST. WESTFIELD, MA 01085 800-465-8558 IN CANADA: 7555 TRANMERE DRIVE, MISSISSAUGA, ONTARIO, L5S 1L4 905-670-5888

References

• SpacePak Central Air | Small Duct High Velocity HVAC
• W0B9

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