AE-Air IOM 787702 HRC(C,X) High Rise Series Water Source Heat Pump Instruction Manual
- June 9, 2024
- AE-Air
Table of Contents
IOM 787702 HRC(C,X) High Rise Series Water Source Heat Pump
Installation, Operation, & Maintenance Manual
IOM 787702 Rev. B 3/22
HRC(C,X) High Rise Series Water Source Heat Pump
HRC(C,X) HIGH RISE SERIES – IOM
COPYRIGHT
AE-Air works to continuously improve its products and as a result, it reserves
the right to change design and specifications without notice. The warranty may
be void unless the Startup & Performance Checklist is completed and returned
to the warrantor. If the HVAC unit is not installed properly, the warranty
will be void, as the manufacturer cannot be held accountable for problems that
stem from improper installation. ©2022 AE-Air, 8273 Moberly Lane, Dallas, TX
75227
WARNING TO INSTALLER, SERVICE PERSONNEL AND OWNER
Altering the product or replacing parts with non-authorized factory parts
voids all warranty or implied warranty and may result in adverse operational
performance and/or a possible hazardous safety condition to service personnel
and occupants. Company employees and/or contractors are not authorized to
waive this warning.
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HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
TABLE OF CONTENTS
HRC(C,X) HIGH RISE SERIES IOM
SAFETY CONSIDERATIONS MODEL NOMENCLATURE GENERAL INFORMATION INTRODUCTION STORAGE SHIPPING & PACKAGE LIST UNIT INSPECTION CHECKLIST UNIT DIMENSIONAL DATA UNIT PHYSICAL DATA ELECTRICAL DATA INSTALLATION CABINET CONFIGURATION ELECTRICAL APPLICATION CONTROLS PERFORMANCE DATA WIRING DIAGRAMS CIRCUIT SCHEMATIC STARTUP INSTRUCTIONS STARTUP & PERFORMANCE CHECKLIST INSTRUCTIONS MAINTENANCE & SERVICE TROUBLESHOOTING SUPPORT/REFERENCE MATERIAL STARTUP & PERFORMANCE CHECKLIST NOTES
4-5 6-7
8 8 9 9-10 11 12-15 16 17 18-28 29-32 33 34-35 36-41 42 43-50 51 51-52 52 53
54-55 56 57 58
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
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HRC(C,X) HIGH RISE SERIES – IOM
SAFETY CONSIDERATIONS
1. READ THE ENTIRE MANUAL BEFORE STARTING THE INSTALLATION. 2. These
instructions are intended as a general guide and do not supersede national,
state, or local codes in any way. 3. Altering the product, improper
installation, or the use of unauthorized factory parts voids all warranty or
implied warranty
and may result in adverse operation and/or performance or may result in
hazardous conditions to service personnel and occupants. Company employees or
contractors are not authorized to waive this warning. 4. This product should
only be installed and serviced by a qualified, licensed, and factory
authorized installer or service agency. 5. All “kits” and “accessories” used
must be factory authorized when modifying this product. Refer and follow
instructions packaged with the kits or accessories when installing.
RECOGNIZE THE FOLLOWING SAFETY NOTATIONS THROUGHOUT THIS MANUAL AND POSTED ON THE EQUIPMENT:
Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
Suggests important procedure steps to insure proper installation, reliability, or operation.
Indicates a potentially hazardous situation or unsafe practices that could
result in severe personal injury or death
and/or damage to property.
This warning signifies potential electrical shock hazards that could result in personal injury or death.
The CAUTION symbol indicates a potentially hazardous situation that may result in minor or moderate injury.
Used to highlight suggestions, which may result in enhanced installation, reliability or operation.
Failure to follow safety warnings exactly could result in dangerous operation,
serious injury, death or property damage.
Improper servicing could result in dangerous operation, serious injury, death
or property damage.
Before servicing, disconnect all electrical power to the HRC(C,X) water source
heat pump.
When servicing controls, label all wires prior to disconnecting. Reconnect
wires correctly.
Verify proper operation after servicing.
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HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
SAFETY CONSIDERATIONS CONTINUED
HRC(C,X) HIGH RISE SERIES IOM
Mechanical components and filters can become clogged with dirt and debris, which can cause damage to the system. The manufacturer does not warrant equipment subjected to abuse. Construction debris can void warranties and liability for equipment failure, personal injury, and property damage.
Material in this shipment has been inspected at the factory and released to
the transportation agency in good condition. When received, a visual
inspection of all cartons should be made immediately. Any evidence of rough
handling or apparent damage should be noted on the delivery receipt in the
presence of the carrier’s representative. If damage is found, a claim should
be immediately filed against the carrier.
These models are designed for indoor installation only. Installation of this
equipment, wiring, ducts, and any related components must conform to current
agency codes, state laws, and local codes. Such regulations take precedence
over general instructions contained in this manual.
DO NOT USE FOR HEATING AND COOLING BUILDINGS OR STRUCTURE UNDER CONSTRUCTION!
Improper installation, adjustment, alteration, service, or maintenance can cause property damage, personal injury or loss of life. Refer to the user’s information manual provided with this water source heat pump. Installation and materials, service must be performed by a qualified installer, or service agency.
Installation and service must be performed by a licensed professional installer (or equivalent), or service agency. Attempting to install or repair this unit without such background may result in product damage, personal injury or death.
These instructions are intended as an aid to qualified, licensed service personnel for proper installation, adjustment and operation of this unit. Read these instructions thoroughly before attempting installation or operation. Failure to follow these instructions may result in improper installation, adjustment, service or maintenance possibly resulting in fire, electrical shock, property damage, personal injury or death.
Disconnect all power before servicing. Failure to do so may result in property damage, personal injury, or death.
Use care when handling compressors. Some surfaces could be hot!
Compressors should NOT be used to evacuate the air conditioning system. Vacuums this low can cause internal electrical arcing resulting in a damaged or failed compressor.
The unit must be permanently grounded. Failure to do so can cause electrical shock resulting in severe personal injury or death.
“USE COPPER SUPPLY WIRES ONLY!”
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
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HRC(C,X) HIGH RISE SERIES – IOM
SAFETY CONSIDERATIONS CONTINU
ED
MODEL NOMENCLATURE
FIGURE 1 Cabinet Model Nomenclature
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MODEL NOMENCLATURE CONTINUED
HRC(C,X) HIGH RISE SERIES IOM
FIGURE 2 Chassis Model Nomenclature
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
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HRC(C,X) HIGH RISE SERIES – IOM
GENERAL INFORMATION
DO NOT use these units as a source of heating or cooling during the construction process. Mechanical components and filters can become clogged with dirt and debris, which can cause damage to the system. The manufacture does not warrant equipment subjected to abuse.
Before servicing equipment, ALWAYS turn off all power to the unit. There may
be more than one disconnect switch. Electrical shock can cause injury or
death.
Clear surrounding area of all tools, equipment, and debris before operating
this unit. These instructions are provided for the installation of the
HRC(C,X) high rise water source heat pump specifically. For any other related
equipment, refer to the appropriate manufacturer’s instructions.
This water source heat pump must never be operated under any circumstances without an air filter in place.
Material in this shipment has been inspected at the factory and released to
the transportation agency in good condition. When received, a visual
inspection of all cartons should be made immediately. Any evidence of rough
handling or apparent damage should be noted on the delivery receipt in the
presence of the carrier’s representative. If damage is found, a claim should
be immediately filed against the carrier.
The HRC(C,X) high rise water source heat pump is designed for indoor
installation only. Installation of this equipment, wiring, ducts, and any
related components must conform to current agency codes, state laws, and local
codes. Such regulations take precedence over general instructions contained in
this manual
8
Extreme caution must be taken that no internal damage will result from screws
that are drilled into the cabinet.
INTRODUCTION
The HydroTech HRC(C,X) series water to air heat pump provide the best
combination of performance, efficiency and reliability in a compact form
factor. The HRC(C,X) series comes standard with PSC blower motors. It is also
available with ECM blower motors for high efficiency and comfort. The heat
pump features double compressor vibration isolation for quiet operation, easy
to remove blower housing for quick service
All HRC(C,X) models are certified to AHRI ISO Standard 13256-1. The HRC(C,X)
models are designed to operate with fluid temperatures between 50°F to 110°F
in cooling mode and 50°F to 90°F in heating mode for continuous operation. For
operation below 50°F or above 90°F entering water temperature, extended range
(insulated tubing) option is needed, and sufficient water flow is required to
prevent freezing. Antifreeze solution is required for any application with
entering water below 50 degree F.
Cooling Tower/Boiler and Geo Thermal applications should have sufficient
antifreeze solution when required to protect against extreme conditions and
equipment failure. Frozen water coils are not covered under warranty.
These installation instructions are intended as a general guide only, for use
by an experienced, qualified contractor.
Do not use this water source heat pump during any phase of construction.
DO NOT use these units as a source of heating or cooling during the
construction process. Mechanical components and filters can become clogged
with dirt and debris, which can cause damage to the system.
The manufacture does not warrant equipment subjected to abuse.
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
STORAGE
Equipment should be stored in a clean dry, conditioned area with maximum
temperatures up to 120°F [48.89°C] and minimum temperatures to 32°F [0°C].
Units should be stored upright and in an indoor environment. It is recommended
to leave packaging on the unit until the installation is to begin. Store or
move chassis in an upright position at all times. If stacking of chassis is
required, do not stack more than two units high.
Store cabinets how they are shipped (horizontal or vertical), keeping them
crated and on their pallets for protection. Cabinets with risers should not be
stacked more than three units high. Failure to follow these instructions may
result in improper installation, adjustment, service or maintenance, property
damage, personal injury or death.
DO NOT operate these units during the construction process. Mechanical
components and filters could become clogged with dirt and debris, which can
cause damage to the system.
The manufacturer does not warrant equipment subjected to abuse.
SHIPPING & PACKAGE LIST
Material in this shipment has been inspected at the factory and released to
the transportation agency in good condition. When received, a visual
inspection of all cartons should be made immediately. Any evidence of rough
handling or apparent damage should be noted on the delivery receipt in the
presence of the carrier’s representative. If damage is found, a claim should
be immediately filed against the carrier.
SHIPPING INSTRUCTIONS
HRC(C,X) chassis must remain in the upright position as seen in FIGURE 3
Standard Packaging throughout the shipping and handling process to maintain a
proper level of oil in the compressor. HRC(C,X) cabinets are shipped in the
horizontal or vertical position.
Shrink-wrap is located around the unit for protection. Remove before installation.
HRC(C,X) HIGH RISE SERIES IOM
FIGURE 3 Standard Packaging
PACKAGE LIST
The units will be shipped with the following items: 1- HRC(C,X) high rise
unit: A- Shipping brackets a. Screws 2- Literature package A- IOM –
Installation & Operations Manual
Check the unit for shipping damage; if found, immediately contact the last
carrier.
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
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HRC(C,X) HIGH RISE SERIES – IOM
SHIPPING & PACKAGE LIST
Units Are Shipped FOB Factory Chassis can be shipped 2 ways.
1. Upright in carton 4 per pallet, see FIGURE 4 Shipping Options. 2.
Upright inside cabinet (risers shipped separate or customer supplied) 4 per
pallet, see FIGURE 4 Shipping Options
FIGURE 4 Shipping Options 10
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
UNIT INSPECTION CHECKLIST
Complete the inspection procedures below before preparing unit for
installation:
- Visually inspect unit for any shipping damage. Damage must be reported immediately to the shipping company to make a claim.
- Ensure that the carrier makes proper notation of any shortages or damage on all copies of the freight bill and completes a common carrier inspection report.
- Verify that unit nameplates on the data label match the sales order or bill of lading (including, unit configuration, size and voltage).
- Immediately before installation, remove unit front panel and verify that all electrical connections are tight and that there are no loose wires.
- Check to make sure that the refrigerant piping is free from any kinks and there is no interference between unit piping and sheet metal or electrical wires.
- Check that the blower spins freely within the housing and that there are no obstructions between the wheel and housing. The wheel can sometimes come loose in shipping.
- Ensure that the evaporator distributor tubes are not touching one in another and that they are over the drain pan.
- Check the air-coil fins for any damage during shipping. 9) Ensure that the
shipping screws are removed from
the unit. Refer to FIGURE 5 Standard Packaging with Brackets – Chassis for more information.
Check the unit nameplate for correct voltage with the plans before installing the equipment. Also, make sure all electrical ground connections are made in accordance with local code.
HRC(C,X) HIGH RISE SERIES IOM
FIGURE 5 Standard Packaging with Brackets Chassis
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
FIGURE 6 Standard Cabinet 11
HRC(C,X) HIGH RISE SERIES – IOM
UNIT DIMENSIONAL DATA
FIGURE 7 Unit Dimensions
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UNIT DIMENSIONAL DATA CONTINUED
HRC(C,X) HIGH RISE SERIES IOM
FIGURE 8 Unit Dimensions
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
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HRC(C,X) HIGH RISE SERIES – IOM
UNIT DIMENSIONAL DATA CONTINUED
FIGURE 9 Unit Dimensions
14
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
UNIT DIMENSIONAL DATA CONTINUED
HRC(C,X) HIGH RISE SERIES IOM
FIGURE 10 Unit Dimensions
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
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HRC(C,X) HIGH RISE SERIES – IOM
UNIT PHYSICAL DATA
HRCC MODELS UNIT INFORMATION Compressor Type (Qty) Factory Charge (R410A) lbs. [oz] Motor (Qty) Fan Motor Type Fan Motor HP [kW] Blower (Qty) Blower Wheel Size (D x W) in. [cm] Hose Size (in) COAX Volume (US Gallons) Condensate Connection O.D. (in) Air Coil Dimension (H x W) in. [cm] Filter Size (H x W) in. [cm] Filter (Qty) Operating Weight Chassis lb. [kg] 80″ Cabinet lb. [kg] 88″ Cabinet lb. [kg]
PHYSICAL DATA HRCC09 HRCC12 HRCC18 HRCC24 HRCC30 HRCC36
Rotary (1)
Scroll (1)
1.7 [27] 2.7 [43] 2.7 [43] 3.7 [59] 3.7 [59] 3.6 [57]
1
PSC
1/12 [.06] 1/10 [.07] 1/4 [.18] 1/6 [.12] 1/2 [.37] 1/2 [.37]
1
6.75 x 7 [17.15 x 17.78]
9 x 7 [22.86 x 17.78]
10 x 8 [25.4 x 20.32]
1/2
1/2
3/4
1
1
1
0.116 0.116 0.144 .544
.544
.544
1-1/8
28 x 14 [11.0 x 5.5]
30 x 18 [11.8 x 7.1]
30 x 16 [11.8 x 6.3]
32 x 20 [12.6 x 7.9]
1
Weight
125[57] 128[58] 131[59] 182[83] 185[84] 188[85]
128[58]
173[78]
175[79]
143[65]
188[85]
190[86]
Table 1 Physical Data PSC
HRCX MODELS UNIT INFORMATION Compressor Type (Qty) Factory Charge (R410A) lbs. [oz] Motor (Qty) Fan Motor Type Fan Motor HP [kW] Blower (Qty) Blower Wheel Size (D x W) in. [cm] Hose Size (in) COAX Volume (US Gallons) Condensate Connection O.D. (in) Air Coil Dimension (H x W) in. [cm] Filter Size (H x W) in. [cm] Filter (Qty) Operating Weight Chassis lb. [kg] 80″ Cabinet lb. [kg] 88″ Cabinet lb. [kg]
PHYSICAL DATA HRCX09 HRCX12 HRCX18 HRCX24 HRCX30 HRCX36
Rotary (1)
Scroll (1)
1.7 [27] 2.7 [43] 2.7 [43] 3.7 [59] 3.7 [59] 3.6 [57]
1
ECM
1/4 [.18]
1/3 [.25] 1/3 [.25]
1/2 [.37]
1
6.75 x 7 [17.15 x 17.78]
9 x 7 [22.86 x 17.78]
10 x 8 [25.4 x 20.32]
1/2
1/2
3/4
1
1
1
0.116 0.116 0.144 .544
.544
.544
1-1/8
28 x 14 [11.0 x 5.5]
30 x 18 [11.8 x 7.1]
30 x 16 [11.8 x 6.3]
32 x 20 [12.6 x 7.9]
1
Weight
125[57] 128[58] 131[59] 182[83] 185[84] 188[85]
128[58]
173[78]
175[79]
143[65]
188[85]
190[86]
Table 2 Physical Data ECM
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HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
ELECTRICAL DATA
HRC(C,X) HIGH RISE SERIES IOM
MODEL NUMBER HRCC09 HRCC12 HRCC18 HRCC24 HRCC30 HRCC36
ELECTRICAL DATA PSC
VOLTAGE-PH-HZ COMPRESSOR
BLOWER MOTOR
MIN. CIRCUIT
MAX. CIRCUIT
RLA LRA FLA HP AMPACITY PROTECTION
208/230-1-60 3.7 22 0.6 1/12 6
15
265-1-60
3.5 22 0.7 1/15 6
15
208/230-1-60 4.7 25 0.65 1/10 7
15
265-1-60
4.2 22 0.65 1/10 6
15
208/230-1-60 7 38 1.4 1/4 11
15
265-1-60
6 30 1.4 1/4
9
15
208/230-1-60 10.9 62.9 1.6 1/6 16
25
265-1-60
9 54 1.4 1/6 13
20
208/230-1-60 12.8 67.8 3.1 1/2 20
30
265-1-60 11.2 60 2.7 1/2 17
25
208/230-1-60 15.4 82.6 3.1 1/2 23
35
265-1-60 12.2 72 2.7 1/2 18
30
Table 3 Electrical Data PSC
MODEL NUMBER HRCX09 HRCX12 HRCX18 HRCX24 HRCX30 HRCX36
ELECTRICAL DATA ECM
VOLTAGE-PH-HZ COMPRESSOR
BLOWER MOTOR
RLA LRA FLA HP
208/230-1-60 3.7 22 2.3 1/4
265-1-60
3.5 22 2.3 1/4
208/230-1-60 4.7 25 2.3 1/4
265-1-60
4.2 22 2.3 1/4
208/230-1-60 7 38 2.8 1/3
265-1-60
6 30 2.6 1/3
208/230-1-60 10.9 62.9 2.8 1/3
265-1-60
9 54 2.6 1/3
208/230-1-60 12.8 67.8 4.1 1/2
265-1-60 11.2 60 3.6 1/2
208/230-1-60 15.4 82.6 4.1 1/2
265-1-60 12.2 72 3.6 1/2 Table 4 Electrical Data ECM
MIN.
MAX.
CIRCUIT CIRCUIT
AMPACITY PROTECTION
7
15
7
15
9
15
8
15
12
15
11
15
17
25
14
20
21
30
18
25
24
35
19
30
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
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HRC(C,X) HIGH RISE SERIES – IOM
INSTALLATION
REQUIREMENTS
Follow manufacturer’s installation instructions, as well as local and
municipal building codes.
INSTALLATION PRECAUTIONS
Always wear all appropriate personal protection Equipment when installing and servicing these units.
Use multiple people when moving and installing these units. Failure to do so could result in injury or death.
Contact with metal edges and corners can result injury. Protective gloves
should be worn when handling. Exercise caution when installing and servicing
unit.
Observe the following precautions for typical installation: Always use proper
tools and equipment. No wiring or any work should be attempted without
first ensuring the unit is completely disconnected from the power source and
locked out. Also, verify that a proper permanent and uninterrupted, ground
connection exists prior to energizing power to the unit. Review unit nameplate
and wiring diagram for proper voltage and control configurations. This
information may vary from unit to unit.
When the unit is in operation components are rotating at high speeds and caution should be taken.
When soldering and brazing, it is recommended to have a fire extinguisher readily available. When soldering and brazing close to valves or sensitive components, heat shields or wet rags are required to prevent damage to the valves or components.
Insulation is installed in the unit to provide a barrier between varying atmospheres outside and within the unit. If insulation is damaged condensation can occur and can lead to corrosion, component failure, and possible property damage. Damaged insulation must be repaired prior to the operation of the unit. Insulation will lose its effectiveness and value when wet, torn, separated, and/or damaged.
When servicing this equipment, because of high pressures, make sure the
reversing valve, expansion device, filter drier and other components are
specifically designed for R-410A refrigerant.
ONLY USE service equipment specifically designated for use with R-410A.
R-410A can become combustible if mixed with air at elevated temperature and/or pressure. Failure to follow this warning could result in property damage and personal injury or death.
Do not operate this equipment without an air filter.
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HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
HRC(C,X) HIGH RISE SERIES IOM
INSTALLATION CONTINUED
RISER & CABINET INSTALLATION
Risers can be ordered loose, not attached to the cabinet, and shipped in bulk.
Entire riser stacks can be assembled, pressure tested, flushed, and filled
before setting cabinets. Insulate all drain risers and insulate all tubing for
extended range applications (operation below 60 degrees F) or if condensation
will occur on riser tubes. Do not construct walls until cabinets are installed
and set.
Supply and return risers can be straight, transition up, transition down,
bottom capped, or top capped. Drain risers can be
straight, transition up, or top capped. All drain risers and extended range
(operation below 50 ºF entering water temperature) supply and return risers
need insulation. See FIGURE 12 Riser Identification
If filled risers are in unconditioned space, care must be taken to prevent freezing or condensation to avoid damage to risers and building.
Risers can be in 4 positions. Supply (S) riser will always be closest to a corner. FIGURE 11 Cabinet
FIGURE 11 Cabinet
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
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HRC(C,X) HIGH RISE SERIES – IOM
INSTALLATION CONTINUED
RISER & CABINET INSTALLATION
1/4″ (6.4mm) PITCH TOWARD DRAIN FROM DRAINAGE
DRAIN CONNECTION
Riser Transition Diameters
FIGURE 12 Riser Identification
These units are for indoor installation ONLY!
Do not locate unit in areas subject to freezing temperatures or where high
humidity levels could cause cabinet condensation. Locate the unit in an area
that provides minimum clearance accesses.
Refer to Table 1 Unit Dimensional Data and Table 2 Unit Dimensional Data
Continued for detailed information on unit dimensional sizes. Consider all
additional clearances needed for water connections, electrical connections,
duct connections and sufficient return airflow.
Do not use soft, low temperature solders like 50-50, 60-40 or 85-15. With copper expansion and contraction, this type of bond will fail.
Expansion loop design and placement is a function of and best prescribed by consulting and design engineers.
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HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
INSTALLATION CONTINUED
CABINET WITH RISERS ATTACHED
Each riser has a 3″ flared opening at the top to accommodate the riser of the
unit on the next floor. Check that riser is 3″ above the top of the cabinet
(See FIGURE 12 Riser Identification). Begin on the lowest floor and progress
upward floor by floor to the top. Remove bottom protective caps and top caps
from unit below. Remove chassis if shipped with cabinet. Tip unit over riser
chase hole in the building floor. As the unit is righted, align the risers
with the unit below. If required, install an isolator pad, field supplied,
beneath the cabinet now. An insertion of 2″ is normal. Bottoming would create
a form of preloading which is undesirable. If, due to building
characteristics, an extension is required to mate to the previous unit, or the
next, then install it now. Level unit to ensure proper condensate drainage.
Make plumb in 2 directions and then anchor to the building using lag screws or
bolts.
Do not over tighten the pipe connections. Flexible hoses should be used
between the unit and rigid piping to avoid vibration transmission into the
structure.
Ball After all units in a vertical column are anchored, make unit-to-unit
riser connections. First, center each riser on the cabinet opening. Get as
vertical a placement as the riser chase will allow. A minimum insertion depth
of 1″ is required into each flare of previous unit riser. Now solder to seal
union using Sil-Fos or appropriate high temperature alloy.
ANCHOR RISERS AS REQUIRED
Risers are not to be rigidly attached to each cabinet. They need to be free to
expand and contract as temperatures vary within the pipe and riser chase. They
do however need to be fastened to the building at strategic points along the
column length. Building code will describe frequency and type. Reference ASME
B31.9 or similar.
The units are designed to allow movement of +/- 1.5″ (3″ total) under normal
circumstances. Expansion loops will be required in each riser if the
calculated movement is in excess of 3″. Expansion loops are described and
formulated by the ASHRAE HVAC Systems and Equipment handbook and copper.org
HRC(C,X) HIGH RISE SERIES IOM
PERFORM HYDRISTATIC TESTING
After all solder joints are made and all risers appropriately anchored perform
hydrostatic testing for leaks. Install air vents at the highest assessable
point of the piping loop and bleed the system of air that was accumulated
during installation.
Once testing is complete, continue to insulate all unions just brazed so that
insulation is now covering all riser surfaces. If required by fire code seal
riser chase openings using correct fire rated materials now.
CABINET WITHOUT RISERS ATTACHED
Verify that the cabinet is in the correct location and that it is configured
for the riser positions. Slide cabinet up to riser and allow 1/4″ to 1″
clearance. If required, install an isolator pad, field supplied, beneath the
cabinet now. Attach cabinet assembly to the floor on at least two sides using
sheet metal angles, lag screws, or bolts. DO NOT fasten risers rigidly within
the unit.
Remove the inner panel and save screws. Verify p-trap hose is connected
correctly by lifting the drain pan. If the condensate hose must be rotated,
loosen clamp on pan, rotate, and re-clamp. Check condensate drain by slowing
pouring water into pan. Water should drain freely. Check for water in cabinet
and floor and repair if needed. For slave cabinets, make sure p-trap is
connected and clamped to riser stub. Lengthen copper stub into slave cabinet
for future access.
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
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HRC(C,X) HIGH RISE SERIES – IOM
INSTALLATION CONTINUED
RISER & CABINET INSTALLATION
1/4″ (6.4mm) PITCH TOWARD DRAIN FROM DRAINAGE
DRAIN CONNECTION
FIGURE 13 Typical Panel with “G” Panel Installation
Position studs in front of cabinet and install frame in opening. Seal the gap
between the cabinet and the frame. If a field installed fresh air motorized
damper assembly is used, field fabricate and install duct from outside to
frame opening. Assembly is installed later. See instructions with assembly.
When return air is required to enter the unit through openings in a stud wall,
supply and field install an optional duct. Seal duct against the return air
opening with foam. Ensure that all air entering the unit passes through the
filter and refrigerant-to-air coil.Note: Chassis must be removable for
service. If you have the surface mounted thermostat option (cabinet model
digit 17 & 18 = A1 or B1), make sure before you install the drywall that the
2×4 junction box is in the correct orientation. Turn if needed. Check your
thermostat.
Allow for drywall thickness under frame front flange. Must use damper motor assembly if fresh air is needed.
22
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
INSTALLATION CONTINUED
RISER & CABINET INSTALLATION
HRC(C,X) HIGH RISE SERIES IOM
For best sound attenuation, it is recommended not to attach drywall to
cabinet. Install studs and drywall using conventional construction methods.
Secure drywall to studs with low profile, pan-head sheet metal screws. Drywall
can be attached directly to cabinet (FIGURE 13 Typical Panel with “G” Panel
Installation), front of cabinet requires double thickness. Must not be
fastened to drain pan edges or control box enclosure. Do not attach studs to
cabinet. Do not install drywall using adhesive alone. See typical construction
figures to determine stud layouts and dimension from cabinet to finished wall.
Vacuum all drywall dust and construction debris from cabinet insulation, drain
pans and blower discharge plenum after cutting out supply. Insulation should
be placed between the drywall and the cabinet for sound attenuation.
When drywall installation is complete, cover all cabinet openings and exposed
sheet metal. (Cardboard from unit shipping cartons can be used). Do not allow
paint or wall texture over-spray to contact insulation, sheet metal, coil, fan
or other unit components. Warranties are void if paint or other foreign debris
is allowed to contaminate internal unit components.
FIGURE 14 Cabinet with Drain Pan & Overflow Sensor
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
23
HRC(C,X) HIGH RISE SERIES – IOM
INSTALLATION CONTINUED
CONDENSATE DRAIN
The Condensate drain must be in conformance with all plumbing codes. For
Standard and Master Cabinets, the condensate drain between the drain pan
assembly and condensate riser is factory installed, clamped, and trapped in
the cabinet. For the slave cabinets. The installer must remove drain knockout,
cut drain hose to length, connect to riser stub, and clamp both ends. Cabinet
must be level to ensure proper condensate drainage.
FIGURE 15 Master/Slave Installation
Condensate drain pan is equipped with a condensate overflow safety device. Check condensate overflow sensor for proper operation and adjust position if required. Final adjustment of this sensor must be made in the field. Failure to follow this warning could result in equipment and property damage.
24
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
INSTALLATION CONTINUED
CHASSIS INSTALLATION
HRC(C,X) HIGH RISE SERIES IOM
After cabinets are installed and walls finished, remove the filter and inner
panel of the cabinet, then remove plastic bag covering the inner panel.
Never use flexible hoses of a smaller diameter than the water connections on
the unit. Apply Teflon tape to the male ends of the hoses where necessary. Use
a compatible Teflon tape or pipe joint compound when antifreeze is used.
Attach the flexible hoses to the shutoffs in the cabinet and the chassis.
Water supply (WATER IN) will always be nearest the rear/back corner of the
cabinet. Attach hoses to the valves using two wrenches. Ensure that the valve
handles are in a position than can be fully opened and closed without
obstruction. Make sure hoses are matched correctly, WATER IN (Supply) hose to
WATER IN tube and WATER OUT (Return) hose to WATER OUT tube.
FIGURE 16 Chassis
Check that the condensate pan in the cabinet is free and on 4 rubber grommets.
Align chassis on condensate pan guides and slide fully into cabinet. Check
hoses for kinks and that they do not exceed the minimum bend radius (See Table
5 Hose Diameter & Minimum bend Radius). Pull out chassis part way, loosen
hoses, and adjust hose position if needed. Make sure that shut off valves are
closed.
Do NOT open shutoff valves to chassis until system has been flushed and purged of air.
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
25
HRC(C,X) HIGH RISE SERIES – IOM
INSTALLATION CONTINUED
PIPING INSTALLATION
All piping must be adequately sized to meet the designed water flow as
specified for the specific application, and must adhere to all applicable
codes. Piping connections on the equipment are not necessarily indicative of
the proper supply and return line sizes. Refer to the project drawings and
specifications for sizing.
On units with plastic drain pans the drain connection must be made hand tight
only.
Chilled water piping must be properly insulated to prevent condensation and
potential property damage. It is also recommended that all piping be insulated
to prevent freezing in unconditioned spaces.
Do not bend or kink supply lines or hoses. For all supply lines or hoses of 1-1/2″ OD or greater, use proper sized fitting is recommended to prevent piping damage and potential restrictions in water flow.
For all applications, 50°F minimum entering water temperature and rated water
flow is required to prevent freezing. Antifreeze solution is required for any
application with entering water below 50°F. Frozen water coils are not covered
under warranty.
The HRC(C,X) high rise water source heat pump are designed to operate with the
entering liquid temperature between 50°F and 110°F. With the extended range
option, the heat pump model can operate with entering liquid temperatures
between 50-110°F. Below 50°F. antifreeze solution must be used to prevent
freezing. Frozen water coils are not covered under warranty.
CONDENSATE DRAINAGE
Condensate drain lines must be properly installed with adequate slope away
from unit to ensure proper drainage. A minimum trap of 1.5 inches must be
installed to isolate the negative pressures of the drain pan from the drain
line. Refer to Figure 15 Maste/Slave Installation for schematic information
on the condensate drain lines.
Check the condensate overflow sensor for proper operation and adjust if necessary. Final field adjustments ensures proper operation to avoid property damage.
On units with plastic drain pans, the drain connection must be made hand tight only.
Both the supply and return water lines will sweat if subjected to low water
temperature. These lines should be insulated to prevent water damage to the
property.
Insulation is not required on loop water piping except where the piping runs
through unconditioned areas, outside the building or when the loop water
temperature is below the minimum expected dew point of the pipe ambient
conditions. Insulation is required if loop water temperature drops below the
dew point.
Units are supplied with either a copper or optional cupronickel water to
refrigerant heat exchangers. Copper is adequate for ground water that is not
high in mineral content. Should your well driller express concern regarding
the quality of the water or should any known hazards exist in your area then
we recommend proper testing to assure the well water quality is suitable for
use with water source equipment. In conditions anticipating moderate scale
formation or in brackish water a cupro-nickel heat exchanger is recommended.
CONDENSATE DRAINAGE
HOSE DIAMETER MINIMUM BEND RADIUS
1/2″
5″
3/4″
7″
1″
7″
Table 5 Hose Diameter & Minimum Bend Radius
26
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
INSTALLATION CONTINUED
PIPING INSTALLATION
All manual flow valves used in the system must be ball valves. Globe and gate valves must not be used due to high pressure drop and poor throttling characteristics. Never exceed the recommended water flow rates. Serious erosion or damage of the water to refrigerant heat exchanger could occur.
When anti-freeze is used in the loop, insure that it is compatible with the Teflon tape that is applied.
Do not allow hoses to rest against structural building components. Compressor
vibration may be transmitted through the hoses to the structure, causing
unnecessary noise complaints.
Always check carefully for water leaks and repair appropriately. Units are
equipped with female pipe thread fittings. Consult the specification sheets
for sizes. Teflon tape should be used when connecting water piping connections
to the units to insure against leaks and possible heat exchanger fouling.
Do not over tighten the pipe connections. Flexible hoses should be used
between the unit and rigid piping to avoid vibration transmission into the
structure.
Ball valves should be installed in the supply and return lines for unit
isolation and unit water flow balancing. Pressure / temperature ports are
recommended in both the supply and return lines for system flow balancing.
Water flow can be accurately set by measuring the water side pressure drop of
the water to refrigerant heat exchanger.
Water piping exposed to extreme low ambient temperatures is subject to freezing and possible rupture. Proper prevention should be taken to prevent pipe freezing or equipment damage or failure may occur. Failure to follow this warning could result in property damage.
HRC(C,X) HIGH RISE SERIES IOM
Ground loop applications require extended range equipment and optional refrigerant/water circuit Insulation.
Geothermal Closed Loop Systems Operation of a HRCX High Rise Water Source Heat
Pump unit on a closed loop application requires the extended range option.
ANTIFREEZE
Anti-freeze solutions must be utilized when low loop temperatures are expected
to occur. In areas where entering loop temperatures drop below 50°F or where
piping will be routed through areas subject to freezing, antifreeze is needed.
Alcohols and glycols are commonly used as antifreeze agents. Freeze protection
should be maintained to 15°F below the lowest expected entering loop
temperature. For example, if the lowest expected entering loop temperature if
30°F, the leaving loop temperature would be 22°F to 25°F. Therefore, the
freeze protection should be at 15°F (30°F-15°F=15°F).
LOW WATER TEMPERATURE CUTOUT SELECTION
The Digital Control Module allows the field selection of low water (or water-
antifreeze solution) temperature limit by clipping jumper JW1 and JW2, which
changes the sensing temperature associated with thermistor CO1 and CO2
respectively. Note that the CO1 thermistor is located on the refrigerant line
between the coaxial heat exchanger and expansion device (TXV). Therefore, CO1
is sensing refrigerant temperature, not water temperature, which is a better
indication of how water rate/temperature is affection the refrigeration
circuit. The factory setting for CO1 is for systems using water (30°F [-1.1°C]
refrigerant temperature). In low water temperature (extended range)
applications with antifreeze (most ground loops), jumper JW1 should be clipped
to change the setting to10°F [12.2°C] refrigerant temperature, a more suitable
temperature when using an antifreeze solution. All units operating with
entering water temperatures below 50°F [10°C] must include the optional
water/refrigerant circuit insulation package to prevent internal condensation.
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
27
HRC(C,X) HIGH RISE SERIES – IOM
INSTALLATION CONTINUED
LOW WATER TEMPERATURE CUTOUT SELECTION
Disconnect power BEFORE the jumper wires are clipped. Failure to do so could result in equipment and/or property damage.
For all applications, 50°F minimum entering water temperature and sufficient water flow is required to prevent freezing. Antifreeze solution is required for any application with an entering water temperature below 50°F or, if either JW1 or JW2 cut-out limits are set to 10°F (clipped). Failure to follow this waring could result in heat exchanger, equipment, or property damage.
28
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
CABINET CONFIGURATION
AIRFLOW CONFIGURATION
HRC(C,X) HIGH RISE SERIES IOM
FIGURE 17 Airflow Configuration
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
29
HRC(C,X) HIGH RISE SERIES – IOM
CABINET CONFIGURATION
ACCESS RETURN PANEL
FIGURE 18 Access Return Panel 30
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
CABINET CONFIGURATION
HOSE SPECIFICATION
HRC(C,X) HIGH RISE SERIES IOM
FIGURE 19 Hose Specification
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
31
HRC(C,X) HIGH RISE SERIES – IOM
CABINET CONFIGURATION
DISCHARGE AIR OPENING
Top air discharge units will require turning vanes and/or a volume damper for
proper airflow and balancing, to minimize turbulence. These components must be
field furnished and installed in accordance with SMACNA guidelines.
32
FIGURE 20 Discharge Air Opening HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
ELECTRICAL
HIGH VOLTAGE
Disconnect all power supplies before servicing. Lock out/tag out to prevent accidental electrical shock. NOTE: There may be multiple power sources supplying the unit.
Use copper conductors only. Install all parts and panels before operation of
unit. Failure to follow these warnings can result in injury or death.
All wiring must comply with local and national code requirements. Units are
provided with wiring diagrams and nameplate data to provide information
required for necessary field wiring.
The HRC(C,X) high rise water source heat pumps are provided with a class 2
transformer for 24VAC control circuits. Should any add-on accessory or
component also have a class 2 transformer furnished, care must be taken to
prevent interconnecting outputs of the two transformers by using a thermostat
with isolating contacts.
Connect ground wire to ground terminal marked “GND”. Failure to do so can result in injury or death.
Any device that has been furnished by the factory for field installation must
be wired in strict accordance with the associated wiring diagram. Failure to
do so could damage components and void warranties.
208-230 VOLT OPERATION
All 208-230 Volt units are factory wired for 230 Volt operation. For 208 Volt
operation, moving/changing/rewiring the line voltage tap on the 24 Volt
control transformer is required. See note 3 on the wiring diagram for
instruction.
HRC(C,X) HIGH RISE SERIES IOM
LOW VOLTAGE
THERMOSTAT A standard 24 VAC Heat Pump thermostat is required that will
operate the reversing valve in the cooling mode. Thermostat connections and
their functions are below in FIGURE 21 Thermostat Connections as follows:
C Transformer 24VAC Common O Reversing Valve (energized in cooling) Y
Compressor Contactor R Transformer 24VAC Hot G Evaporator Blower
FIGURE 21 Thermostat Connections
THERMOSTAT INSTALLATION
The Thermostat should be located on an interior wall in a larger room, away
from supply duct draft. Position the thermostat back plate against the wall so
that it appears level and so the thermostat wires protrude through the middle
of the back plate mounting holes and drill holes with a 3/16″ (5mm) bit.
Install supplied anchors and secure plate to the wall. Thermostat wire must be
18 AWC wire.
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
33
HRC(C,X) HIGH RISE SERIES – IOM
APPLICATION
COOLING TOWER/BOILER APPLICATION
To ensure optimum cooling and heating performance, the cooling tower and
boiler loop temperature should be maintained between 55-75°F in the heating
mode and 6095°F in the cooling mode. In the cooling mode, heat is rejected
from the heat pump’s refrigerant into the water loop. A cooling tower and/or
boiler may be required to maintain proper water temperature within the water
loop. In an open cooling tower, chemical water treatment is mandatory to
ensure water is free of corrosive materials
In heating mode, heat is absorbed from the water loop into the heat pump’s
refrigerant. A boiler may be utilized to maintain the proper water temperature
within the loop.
A boiler may be required in the water loop to maintain the loop water
temperature between 55-75°F. Failure to maintain proper water loop
temperatures could result in equipment failure and property damage, and void
warranties.
A secondary heat exchanger (plate frame between the unit and the open cooling
tower) may also be used. It is imperative that all air is eliminated from the
closed loop side of the heat exchanger to prevent condenser fouling.
Use copper conductors only. Install all parts and panels before operation of unit. Failure to follow these warnings can result in injury or death.
The manufacturer does NOT WARRANT equipment subjected to abuse. Dirt, piping
chips or other foreign material can cause damage or failure to the water or to
refrigerant heat exchanger.
No unit should be connected to the supply or return piping until the water
system has been completely cleaned and flushed to remove dirt, piping chips or
other foreign material. Supply and return hoses should be connected together
during this process to ensure the entire system is properly flushed. After the
cleaning and flushing has taken place the unit may be connected to the water
loop and should have all valves adjusted to
34
supply the proper flow rate for the unit. Nominal flow rate is 3 GPM per
12,000 BTUH of cooling.
EXTENDED RANGE OPERATION
Piping systems expected to utilize water temperature below 50°F require the
extended range option, which includes closed cell installation on all piping
surfaces to eliminate condensation. This application requires sufficient
antifreeze solution to prevent the water loop against extreme temperature
conditions and condenser coil freezing. Frozen condenser coil are not covered
under warranty. A boiler may be required to maintain the minimum water
temperature within the loop.
Connect ground wire to ground terminal marked “GND”. Failure to do so can result in injury or death.
Any device that has been furnished by the factory for field installation must
be wired in strict accordance with the associated wiring diagram. Failure to
do so could damage components and void warranties.
CLOSED LOOPS
Failure to maintain proper water loop temperatures could result in equipment
failure and property damage, and void warranties. Consult the factory when
running entering water temperatures below 50°F as additional pipe insulation
may be required to avoid excessive sweating inside the unit. For applications
below 50°F it is imperative that the system be operated with antifreeze
solution. When a secondary heat exchanger is used (i.e. plate to plate; closed
loop system) it is imperative that all air is purged from the system to
prevent condenser fouling.
The entire water loop must be completely cleaned and flushed of all debris
prior to final connections and unit
operation.
Valves should be adjusted to supply proper water flow rated for the unit.
Failure to do so will VOID ALL FACTORY WARRANTY.
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
APPLICATION CONTINUED
WATER WELL APPLICATION
REQUIREMENTS: 50° Minimum Entering Water Temperature Cupronickel Refrigerant
Heat Exchanger
HRC(C,X) HIGH RISE SERIES IOM
When a water well is used exclusively for supplying water to the heat pump, a cupronickel refrigerant heat exchanger is required and the well pump should operate only when the heat pump operate. A 24 Volt contactor can be wired to the ACC1 terminal on the Control Module which can be selected to be energize prior to or at compressor start-up, which would in turn energize the water pump to operate with the heat pump.
Potential Failure Mode
Corrosion and Scaling
Iron Fouling Erosion
WELL WATER APPLICATION
Water Chemistry Parameter
Copper
pH Level Hardness (Calcium or Magnesium
Carbonate) Langelier Saturation Index (LSI)
Ryznar Stability Index (RSI) Hydrogen Sulfide Sulfates Chlorine Chlorides
Carbon Dioxide Ammonia
Ammonia Chloride, Nitrate, Hydroxide, Sulfate
Total Dissolved Solids (TDS) Iron, Iron Bacteria Iron Oxide
Suspend Solids
7-9
< 350 ppm
-0.5 to 0 6.2 6.8 < 0.5 ppm < 125 ppm < 0.5 ppm < 20 ppm < 5 ppm < 2 ppm
< 0.5 ppm
< 1000 ppm < 0.2 ppm < 1 ppm < 10 ppm, < 600 Micron or 30 mesh filter size
Design Water Velocity
3 GPM/TON
Table 6 Well Water Application Data
CuNi
7-9
<350 ppm
-0.5 to 0 6.2 6.8 < 0.5 ppm < 125 ppm < 0.5 ppm < 150 ppm < 5 ppm < 2 ppm
< 0.5 ppm
< 1500 ppm < 0.2 ppm < 1 ppm < 10 ppm, < 600 Micron or 30 mesh filter size
3 GPM/TON
Minimum entering water temperature is 50°F. Failure to follow this warning could result in equipment failure and property damage. The discharge water from the heat pump is not contaminated in any manner and can be disposed of in various way depending upon local codes.
Close loop and pond applications require specialized design knowledge. Do not attempt at these installations without the licensed installer the received specialized training.
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
35
HRC(C,X) HIGH RISE SERIES – IOM
CONTROLS
SEQUENCE OF OPERATION
FIGURE 17 Sequence of Operations
36
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
CONTROLS CONTINUED
WSCM CONTROL MODULE
CONTROL FEATURES Anti-short Cycle Protection Random Start High and low
Pressure Cut-out Water Coil Low Temperature Cut-out Over/Under Voltage
Protection Fault Retry Lockout with Soft and Hard Reset Condensate Overflow
Sensor Diagnostic LED Display Test Mode Alarm Relay Accessory Relays Vacated
Mode Extended Compressor Operating Monitoring
MOTOR SPEED OPERATION An ECM or PSC blower can be driven directly from the
WSCM control module. The control of the motor is based off the input signals
of G, Y1, and O. The blower speed is automatically controlled via the WSCM
module.
MOTOR SPEED OPERATION
Unit Call
Fan Speed
G
G2
Y
G3
Y,O,G
G2, then G3 after 10min of run time
Table 7 Motor Speed Operation ECM
MOTOR SPEED OPERATION
Unit Call
Fan Speed
G
G1
Y
G2
Y,O,G
G1, then G2 after 10min of run time
Table 8 Motor Speed Operation PSC
A secondary heat exchanger (plate frame between the unit and the open cooling tower) may also be used. It is imperative that all air is eliminated from the closed loop side of the heat exchanger to prevent condenser fouling.
HRC(C,X) HIGH RISE SERIES IOM
FIELD CONTROLLABLE FUNCTIONS
TEST MODE The unit can be placed into test mode by shorting the test pins on
the WSCM module. Once the pins are shorted, the WSCM module will enter a test
mode period in which all time delays are sped up 15 times. While in test mode
the yellow LED2 will light up yellow. Faults stored in memory can be cleared
by entering into test mode and exiting the test mode, or by a hard reset. Test
mode can be exited by shorting the test pins for approximately 3 seconds.
Test mode will be automatically exited after a 10 minute period.
During test mode, the control will monitor to see if CO1 and CO2 freeze
thermistors are present and correctly. The controls will indicate fault code
19 if CO1 or CO2 are open, or if there is a jumper connecting across the free
sensors terminals.
VACATED PREMISES CONTROL
Optional Vacated Premise Kit option must be installed to operate in this mode.
The vacated premises operation is designed for extended periods of un-
occupancy when the occupant wants the heat pump to operate in cooling mode for
a predetermined cycle time to help control indoor air conditions. See Dip 1.7
for time selection (1 or 2 hours).
Additionally, the mode will store all faults seen over 24 hours in memory. If
the same fault occurs for 4 consecutive days, the unit will go into a hard
lockout.
The control kit consist of a rocker switch, wiring and a programmed chip that
is installed on the WSCM module by a licensed contractor.
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
37
HRC(C,X) HIGH RISE SERIES – IOM
CONTROLS CONTINUED
FIELD CONTROLLABLE FUNCTIONS
HOME SELECTION If the switch is in the HOME position the heat pump will
operate in its normal mode.
AWAY SELECTION If the switch is in the AWAY position the heat pump and
thermostat are set to “COOL” mode the heat pump will operate in accordance to
the thermostat setting. Additionally, the heat pump will cycle on in cooling
mode for 15 minute run times either 4 or 8 times per day depending on the Dip
1.7 selection. Thermostat still has priority and will cycle the unit as
needed.
If the LED display is flashing “Ay” the thermostat is not set in cooling mode.
BOILERLESS CONTROL The system can operate in boilerless mode by switching Dip 1.5. If CO1 goes below the setting of Dip 1.6 the compressor will be de- energized and control goes into emergency heat mode staging on “W1”. The compressor will be locked out for 60 minutes to prevent nuisance cycling.
The set point for boiler less changeover temperature can be adjusted by switching Dip 1.6.
WATER-COIL LOW TEMPERATURE CUT-OUT LIMIT Jumpers JW1-CO1 provide field selection of the temperature limit settings for CO1.
Not Clipped = 30°F
Clipped = 10°F
For all applications below 50°F entering water temperature, anti-freeze solution is required. Failure to follow this warning could result in heat exchanger, equipment or property damage.
ALARM RELAY SETTING Jumper 3 (JW3 Alarm) provides field selection of alarm
relay terminal AL2 to be jumpered to 24VAC or to be dry. The alarm relay is
activated during lockout mode.
Not Clipped = AL2 Connected to “R”
Clipped = AL2 dry contacts (No connection)
DEHUMIDIFICATION MODE The system can operate in Dehumidification mode by
switching Dip 1.4 on the WSCM module. In this mode, the unit will run
continuously in fan speed G2 when Y,O, G calls are given to the board.
Dehumidification mode will not run in heating mode.
WSCM SAFETY FEATURES
ANTI-SHORT CYCLE PROTECTION The WSCM module incorporates a 5 minute anti-short
cycle protection for the compressor.
RANDOM START The WSCM module features a 5-80s random start upon receiving a
call to operate.
FAULT RETRY While in Fault Retry Mode the LED will display a code representing
retry and the fault code. The unit will initiate the Anti-short cycle timer
and try to restart after the delay. If 3 consecutive faults occur without
satisfying the thermostat the unit will go into hard lockout. The last fault
causing the lockout will be stored in memory and displayed on the two digit
LED display.
WATER-COIL LOW TEMPERATURE CUT-OUT (CO1) The control module will recognize a
CO1 fault during a compressor run cycle if:
a) Thermistor temperature is below the selected set point limit.
b) The thermistor temperature is rising at a rate less than 2°F per 30s time
period. The CO1 input is bypassed for the first 120s of a compressor run
cycle. On the second and third retry CO1 is bypassed for the initial 90s and
60s of run-time respectively.
AIR COIL LOW TEMPERATURE CUT-OUT (CO2) The control module will recognize a CO2
fault during a compressor run cycle if:
a) Thermistor temperature is below the selected set point limit.
b) The thermistor temperature is rising at a rate less than 2°F per 30s time
period. The CO2 input is bypassed for the first 120s of a compressor run
cycle.
38
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
CONTROLS CONTINUED
WSCM SAFETY FEATURES
CONDENSATE OVERFLOW SENSOR The condensate overflow sensor must sense overflow
levels for 30 continuous second to initiate a COF fault. The condensate
overflow sensor will be monitored during the compressor run cycle.
LOW PRESSURE The low pressure switch must be open and remain open for 30
continuous seconds during the “on” cycle to be recognized as a low pressure
fault. The low pressure switch input is bypassed for the initial 120s of
compressor runtime.
HIGH PRESSURE If the high-pressure switch opens at any time, the compressor
relay is de-energized immediately.
LOCKOUT MODE While in Lockout Mode the LED Display will display a code
representing the lockout fault code. During this lockout the compressor relay
is not energized and the alarm relay is activated.
The lockout mode can be cleared by either going into test mode or a hard reset
via the power disconnect
Caution: Do not restart units in lockout mode without inspection and
correction of the fault condition. Failure to do so many result in equipment
damage.
EXTENDED COMPRESSOR OPERATION MONITORING If the compressor relay has been
energized for four continuous hours, control module will automatically turn
off the compressor relay and the compressor will enter anti-short cycle delay
before restarting. During this off period, all appropriate safety will be
monitored and if the compressor demand is present, the control module will
energize the compressor relay.
OVER/UNDER VOLTAGE SHUTDOWN Should an Over/Under Voltage Condition be detected
the control module will shut down. Over/Under Voltage faults cause a soft
lockout and the unit will return to normal operation once normal voltage has
been restored. The nominal voltage run is 18.5VAC to 31VAC. If the WSCM module
is in Over/Under Voltage fault for 15 minutes, the alarm relay will activate.
HRC(C,X) HIGH RISE SERIES IOM
FIGURE 18 Control Board Layout FIGURE 19 Sight Glass Location
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
39
HRC(C,X) HIGH RISE SERIES – IOM
CONTROLS CONTINUED
WSCM SAFETY FEATURES
CONTROL BOARD LAYOUT LEGEND
INPUT
CONNECTION OR
DESCRIPTION
OUTPUT
R
— 24 VAC
C
— 24 VAC (Grounded Common)
Y1
I Input Call for Compressor
W
I Input Call for Heating or Emergency Heat
O
I Input Call for Reversing Valve in Cooling
G
I Input Call for Fan Operation
AL1
O
Connect to Thermostat Fault Light 24VAC or Dry Contact Alarm
AL2 A ACC1 ACC2 G1 G2 G3
O Alarm Relay 24VAC or Dry Contact
O
Output for Water Solenoid Valve Paralleled with Compressor Contactor
O
ACC1 Output for Accessory Relay 1 24VAC between ACC1 and COM
O
ACC2 Output for Accessory Relay 2 24VAC between ACC2 and COM
O
Connection for Fan Relay Low Speed Operation
O
Connection for Fan Relay Medium Speed Operation
O
Connection for Fan Relay Large Speed Operation
CC
O Connection for Compressor Contactor
CCG
O
Compressor Contactor Common Connections
HP
I High Pressure Switch Input Terminals
LOC
I Low Pressure Switch Input Terminals
CO1
I
Water Coil Low Temperature Thermistor Output
CO2
I
Air Coil Low Temperature Thermistor Output
RV
O
Reversing Valve Output Terminals Direct Connect from “O”
COND_SW
I Condensate Overflow Input Terminal
W1
O Output Terminal for Electric Heat
COM
— Grounded Common Table 9 Control Board Layout Legend
CONTROLLER OPERATION CODES
DESCRIPTION OF OPERATION
LED
READOUT
Normal Mode
ON
(Green Light)
Controller Non Functional
OFF
(Green Light)
Test Mode (pins shorted momentarily)
ON
(Yellow Light)
DESCRIPTION OF OPERATION
CODE
Standby
ST
Fan Only(G active)
Fo
Cool (Y1 & O active)
Co
Heat 1st Stage (Y1 active)
H1
Accessory Relay 1
A1
Accessory Relay 2
A2
Vacated Premises Control
Ay
Fault Retry
rE & CODE #
Lockout
Lo & CODE #
Over/Under Voltage Shutdown
Ou & CODE #
Temperature Sensor Error
SE & CODE #
DESCRIPTION OF OPERATION
CODE
Test Mode No Fault
11
Test Mode HP Fault
12
Test Mode LP Fault
13
Test Mode CO1 Fault
14
Test Mode CO2 Fault
15
Test Mode Cond. Overflow Fault
16
Test Mode Over/Under Shutdown
17
Test Mode Swapped CO1/CO2 Thermistors
18
Table 10 Control Operating Codes
40
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
CONTROLS CONTINUED
WSCM SAFETY FEATURES
WSCM DIP SWITCH FUNCTIONS
FUNCTION
OFF
ON
DIP SWITCH 1
1.1 Compressor Delay
No Delay 5s Delay
1.2 Motor Type
PSC Motor ECM Motor
1.3 Blower Time Delay
None
45s
1.4 Dehumidification
None
Dehum
1.5 Boilerless
Off
On
1.6 Boilerless Setpoint
40°F
50°F
1.7 Vacated Premises
1hr
2hr
DIP SWITCH 2
2.1 Accessory Relay Control
With Fan With Comp
2.2 Compressor Delay
None
60s
2.3 Accessory Relay 2 Control With Fan
With Comp
2.4 Fan Delay
None
30s
Table 11 WSCM DIP Switch Functions
CONTROL BOX DETAIL
FIGURE 20 Control Box Layout – Chassis
HRC(C,X) HIGH RISE SERIES IOM
ASSEMBLY
Once box is removed completely, line up the control panel back in place of the
unit and tighten screws on the base plate and on the front panel. Plug back
any harnesses previously removed.
REMOVAL
- Ensure that all electrical power is removed from the unit and that the local disconnect is locked out.
- Remove the screws on the front electrical panel with a ¼” hex head driver.
- Remove the electrical front panel and access the electrical box
- Disconnect the electrical harnesses located on the top of the ebox.
- Remove the two ¼” hex header screws holding the electrical box in place on
the bottom and side.
Remove electrical box from unit.
Disconnect all power supplies before servicing. Lock out/tag out to prevent accidental electrical shock.
There may be multiple power sources supplying the unit.
FIGURE 21 Control Box Layout – Cabinet
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
41
HRC(C,X) HIGH RISE SERIES – IOM
PERFORMANCE DATA
BLOWER DATA
BLOWER DATA PSC
BLOWER DATA
FACTORY BLOWER SETTINGS
MODEL NUMBER
CFM VS. STATIC PRESSURE (in.
FAN RATED
w.g.)
SPEED AIRFLOW 0.1 0.2 0.3 0.4 0.5
COOLING
1-10 10+ MIN MIN
HEATING
HIGH
430 400 370
HRCC09 MEDIUM 300 360 340 310 280 250
X
X
LOW
280 250 220
X
HIGH
480 460 430 400 370
HRCC12 MEDIUM 365 360 340 310 280
X
X
LOW
280 250
X
HIGH
810 760 710 650 600
HRCC18 MEDIUM 650 740 690 640 590 540
X
X
LOW
680 640 600 550 490 X
HIGH
900 860 810 740 660
HRCC24 MEDIUM 790 760 740 700 660 590
X
X
LOW
590 570 550
X
HIGH
1170 1110 1050 970 890
HRCC30 MEDIUM 900 1080 1030 970 900 820
X
X
LOW
970 930 880 810 730 X
HIGH
1230 1170 1090 1010 910
HRCC36 MEDIUM 1100 1170 1110 1050 970 890
X
X
LOW
1080 1030 970 900 850 X
Airflow data shown is with a dry coil at 70°F DB EAT and with standard 1″ filter.
Table 12 HRCC Blower Data
BLOWER DATA ECM
BLOWER DATA
FACTORY BLOWER SETTINGS
MODEL NUMBER
CFM VS. STATIC PRESSURE (in.
FAN RATED
w.g.)
SPEED AIRFLOW 0.1 0.2 0.3 0.4 0.5
COOLING
1-10 10+ MIN MIN
HEATING
T3
430 410 380 360 340
X
X
HRCX09 T2
350 360 330 300 280 250 X
T1
290 260 230
T3
490 460 440 420 410
X
X
HRCX12 T2
400 390 360 340 310 290 X
T1
310 280
T3
770 740 700 660 610
X
X
HRCX18 T2
600 650 620 590 560 530 X
T1
550 520 490 450
T3
940 910 870 840 800
X
X
HRCX24 T2
800 840 810 770 740 700 X
T1
720 690 650 610
T3
1260 1210 1140 1060 990
X
X
HRCX30 T2
900 1080 1050 1020 980 940 X
T1
990 960 930 900 870
T3
1300 1230 1150 1080 990
X
X
HRCX36 T2
1125 1260 1210 1140 1060 970 X
T1
1080 1050 1020 980 940
Airflow data shown is with a dry coil at 70°F DB EAT and with standard 1″ filter.
Table 13 HRCX Blower Data
42
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
4 3
HRC(C,X) HIGH RISE SERIES IOM
HRCC09-24 CHASSIS WIRING DIAGRAM (208-230V)
FIGURE 22 HRCC09-24 CHASSIS (208-230V)* Wiring Diagram
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
WIRING DIAGRAMS
HRC(C,X) HIGH RISE SERIES – IOM
WIRING DIAGRAMS
HRCC09-24 CHASSIS WIRING DIAGRAM (265V)
FIGURE 23 HRCC09-24 CHASSIS (265V) Wiring Diagram
44
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
4 5
HRC(C,X) HIGH RISE SERIES IOM
HRCC30-36 CHASSIS WIRING DIAGRAM (208-230V)
FIGURE 24 HRCC30-36 CHASSIS (208-230V) Wiring Diagram
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
WIRING DIAGRAMS
HRC(C,X) HIGH RISE SERIES – IOM
WIRING DIAGRAMS
HRCC30-36 CHASSIS WIRING DIAGRAM (265V)
FIGURE 25 HRCC30-36 CHASSIS (265V) Wiring Diagram
46
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
4 7
HRC(C,X) HIGH RISE SERIES IOM
HRCX09-12 CHASSIS WIRING DIAGRAM (208-230V)
FIGURE 26 HRCX09-12 CHASSIS (208-230V)* Wiring Diagram
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
WIRING DIAGRAMS
HRC(C,X) HIGH RISE SERIES – IOM
WIRING DIAGRAMS
HRCX09-12 CHASSIS WIRING DIAGRAM (265V)
FIGURE 27 HRCX09-12 CHASSIS (265V) Wiring Diagram
48
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
4 9
HRC(C,X) HIGH RISE SERIES IOM
HRCX18-36 CHASSIS WIRING DIAGRAM (208-230V)
FIGURE 28 HRCX18-36 CHASSIS (208-230V) Wiring Diagram
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
WIRING DIAGRAMS
HRC(C,X) HIGH RISE SERIES – IOM
WIRING DIAGRAMS
HRCX18-36 CHASSIS WIRING DIAGRAM (265V)
FIGURE 29 HRCX18-36 CHASSIS (265V) Wiring Diagram
50
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
CIRCUIT SCHEMATIC
HRC(C,X) HIGH RISE SERIES IOM
FIGURE 30 – Circuit Diagram
STARTUP INSTRUCTIONS
PRE-STARTUP CHECKS:
Electrically ground the unit. Connect ground wire to ground lug. Failure to do so can result in injury or death.
Wire any field installed device such as a fan switch or thermostat furnished
by the factory in strict accordance with the wiring diagram supplied with the
unit. Failure to do so could result in damage to components and will void all
warranties.
Before start-up, thoroughly check all the components. Optimal operation of
equipment requires cleanliness. Often after installation of the equipment,
additional construction activities occur. Protect the equipment from debris
during these construction phases.
PRIOR TO THE STARTUP OF THE UNIT:
1. Ensure supply voltage matches nameplate data. 2. Ensure the unit is
properly grounded 3. With the power off, check blower wheel set screws
for proper tightness and that the blower wheel rotates freely. 4. Ensure unit
will be accessible for servicing. 5. Ensure condensate line is properly sized,
run, trapped, pitched and tested. 6. Ensure all cabinet openings and wiring
connections have been sealed. 7. Ensure clean filters are in place. 8. Ensure
all access panels are in place and secured.
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
51
HRC(C,X) HIGH RISE SERIES – IOM
STARTUP INSTRUCTIONS CONTINUED
PRIOR TO THE STARTUP OF THE UNIT:
9. Check that the water coil and piping had been leak checked and insulated
as required.
10. Ensure that all air has been vented from the water coil.
11. Make sure that all electrical connections are tight and secure.
12. Check the electrical overcurrent protection and wiring for the correct
size.
13. Verify that the low voltage wiring between the thermostat and the unit
matches the wiring diagram.
14. Verify that the water piping is complete and correct.
15. Check condensate overflow sensor for proper operation and adjust position
if required. Ensure that power is connected to the unit and the local
disconnect is switched to ON position.
12. Verify water flow rate is correct according to specification. Adjust if
necessary. If specification is not available, the nominal flow rate for this
unit is 25 GPM.
13. Instruct the owner on the unit and thermostat operation.
STARTUP & PERFORMANCE
CHECKLIST INSTRUCTIONS
The warranty may be void unless the FIGURE 31 Startup & Performance
Checklist is completed and returned to the warrantor. If the FPG unit is not
installed properly the warranty will be void as the manufacturer can’t be held
accountable for problems that stem from improper installation.
UNIT STARTUP:
1. Turn the disconnect switch to ON position. 2. Check for 24 volt from
control transformer.
Controller module LED should light up. If not, the power supply lines are out
of phase. Turn of the main power disconnect to the unit off and change the
phase.by switching any two incoming wires. 3. Set the thermostat to the lowest
position. Turn the system switch to “COOL” and the fan switch to “AUTO”
position. The reversing valve should energize. 4. After 5 minutes (anti-short
cycle protect delay), the fan start at low speed and the compressor is
running. 5. Make sure that compressor rotation is correct. If not, turn the
power off and make the correction. This is 3-phase unit. Switching compressor
rotation could be done by switching any two of compressor wires. 6. Turn the
thermostat system to “OFF” position. The unit should stop running and the
reversing valve de-energizes. 7. Leave the unit off for approximately 5
minutes to allow the system pressures to equalize. Anti-short cycle feature
built in the system will keep the compressor off for 5 minutes. 8. Set the
thermostat to the highest setting. Turn the system switch to “HEAT” position.
9. Verify that the unit is operating to the heating mode. 10. Set the
thermostat to maintain the desired space temperature. 11. Check for
vibrations, leaks, etc.
52
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
MAINTENANCE & SERVICE
PREVENTIVE MAINTENANCE
To achieve maximum performance and service life of equipment, a formal
schedule of regular maintenance should be established and adhered to.
All appropriate personal protection equipment should be worn when servicing or
maintaining this unit. Personal injury can result from sharp metal edges,
moving parts, and hot or cold surfaces.
FAN
The fan should be inspected and cleaned annually in conjunction with
maintenance of the motor and bearings. It is important to keep the fan section
and motor clean and free from obstruction to prevent imbalance, vibration, and
improper operation.
Check motor connections to ensure they are secure and in accordance with the
unit wiring diagram. ECM motors have line voltage power applied at all times.
MAKE SURE POWER IS DISCONNECTED BEFORE SERVICING.
FILTER
The air filter should be cleaned or replaced every 30 days or more frequently
if severe operating conditions exist. Always replace the filter with the same
type and size as originally furnished.
COIL
Clean all heat transfer surfaces and remove all dirt, dust, and contaminates
that potentially impairs air flow using industry accepted practices. Care
should be taken not to bend coil fin material.
CONDENSATE DRAIN PAN AND PIPE
Check and clean all dirt and debris from pan. Ensure drain line is free
flowing and unobstructed.
MAINTENANCE UPDATES
Check regularly for a current copy of the maintenance program log, which can
be found at under “product information”.
HRC(C,X) HIGH RISE SERIES IOM
CLEANING/FLUSHING
Before the unit is connected to the supply water, the water circulating system
must be cleaned and flushed to remove any dirt or debris for the system.
1. Connect the supply and return water lines together in order to bypass the
unit. This will prevent dirt or debris from getting into the system during the
flushing process.
2. Start the main water circulating pump and allow for water to circulate in
the system. Open drains at the lowest point in the system and drain out the
water while simultaneously filling the loop with city water. Continue to
exchange the loop water with the city water for a minimum of two hours, or
until drain water is clear. During this time, check to make sure there are no
leaks within the system.
3. Open all drains and vents to drain water system and refill with clean
water. Test the system water quality and treat as necessary in order to bring
water quality to within requirements for the system. Water PH level should be
7.5 to 8.5. Antifreeze may be added if required.
4. Connect the water-source heat pump supply and return lines, following
proper installation procedures outlined in the piping installation section.
After the installation has been checked for leaks, bring the water-loop to the
desired set point and vent any air within the loop.
UNIT PERFORMANCE
Record performance measurements of volts, amps and water temperature
differences (both heating and cooling). A comparison of logged data with
start-up and other annual data is useful as an indicator of general equipment
condition.
UNIT LOCKOUT
Air or water problem could cause periodic lockouts. The lockout (shutdown) of
the units is a normal protective result. Check for dirt in the water system,
water flow rates, water temperatures, airflow rates (may be caused by dirty
filter) and air temperatures.
LABORATORY TESTING
When the unit has less than 100 operational hours and the coils have not had
sufficient time to be “seasoned”, it is necessary to clean the coils with a
mild surfactant such as Calgon to remove the oils left by manufacturing
processes.
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
53
HRC(C,X) HIGH RISE SERIES – IOM
TROUBLESHOOTING
PROBLEM
ENTIRE UNIT DOES NOT RUN
BLOWER OPERATES BUT COMPRESSOR DOES NOT RUN
UNIT OFF ON HIGH PRESSURE
CONTROL FAULT CODE 12
UNIT OFF ON LOW PRESSURE
CONTROL FAULT CODE 13
POSSIBLE CAUSE
CHECKS & CORRECTIONS
Power supply off
Apply power; close disconnect.
Blown Fuse
Replace fuse or reset circuit breaker. Check for correct fuses.
Voltage supply low
If voltage is below minimum voltage specified on unit dataplate,
contact lower power company. (Fault Code Ou & 17). Set the fan to “ON”, the
fan should run. Set thermostat to “COOL” and
lowest temperature setting, the unit should run in the cooling mode (reversing valve energized). Set unit to “HEAT” and the highest
temperature setting, the unit should run in the heating mode. If
Thermostat
neither the blower nor compressor run in all three cases, the thermostat could be mis-wired or faulty. To ensure mis-wired or faulty
thermostat verify 24 volts is available on the condenser section low voltage terminal strip between “R” and “C”, “Y” and “C”, and “O” and “C”. If blower does not operate, verify 24 colts between terminals “G” and “C” in the air handler. Replace the thermostat if defective.
Thermostat
Check setting, calibration and wiring.
Wiring
Check for loose or broken wires at compressor, capacitor or contractor.
Safety Controls
Check control board fault LED for fault code.
Compressor overload open
If the compressor is cool and the overload will not reset, replace the compressor.
Compressor motor
Internal wiring grounded to the compressor shell. Replace compressor.
grounded
If compressor burnout, install new filter dryer.
Compressor windings open
After compressor has cooled, check continually of compressor windings. If the windings are open, replace the compressor.
In “COOLING” mode: Lack of or inadequate water flow. Entering water
temperature too warm. Scaled or restricted water to refrigerant heat
Discharge pressure too high
exchanger. In “HEATING” mode: Lack of or inadequate water flow. Entering water
temperature too cold. Scaled or restricted water to refrigerant heat
exchanger.
Refrigerant charge
The unit is overcharged with refrigerant. Reclaim refrigerant, evacuate and recharge with factory recommended charge.
High pressure switch
Check for defective or improperly calibrated high pressure switch. In “COOLING” mode: Lack of or inadequate airflow. Entering air
temperature too cold. Blower inoperative, clogged filter or restriction
Suction Pressure too low
in ductwork. In “HEATING” mode: Lack of or inadequate water flow. Entering water
temperature too cold. Scaled or restricted water to refrigerant heat
exchanger.
Refrigerant charge
The unit is low on refrigerant. Check for refrigerant leak, repair, evacuate and recharge with factor recommended charge.
Low pressure switch
Check for defective or improperly calibrated low pressure switch.
Table 14 Troubleshooting Table
54
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
HRC(C,X) HIGH RISE SERIES IOM
TROUBLESHOOTING CONTINUED
PROBLEM UNIT SHORT
CYCLES
INSUFFICIENT COOLING OR
HEATING
POSSIBLE CAUSE
CHECKS & CORRECTIONS
Unit oversized
Recalculate heating and cooling loads.
Thermostat
Thermostat installed near a supply air register, relocate thermostat. Check heat anticipator.
Wiring and controls
Loose connections in the wiring or a defective compressor contactor.
Unit undersized
Recalculate heating and cooling loads. If not excessive, possibly adding insulation will rectify the situation.
Loss of conditioned air by Check for leaks in ductwork or introduction of ambient air through
leaks
doors or windows.
Airflow
Lack of adequate airflow or improper distribution of air. Replace dirty air filter.
Refrigerant charge
Low on refrigerant charge causing inefficient operation.
Check for defective compressor. If discharge is too low and suction
Compressor
pressure is too high, compressor is not pumping properly. Replace
compressor.
Defective reversing valve creating bypass of refrigerant from
Reversing valve
discharge to suction side of compressor. Discharge is too low and
suction is too high. Replace reversing valve.
Operating pressures
Compare unit operating pressures to the pressure / temperature chart for the unit.
Refrigerant metering
Check for possible restriction or defect. Replace is necessary.
device
Moisture, noncondensables
The refrigerant system may be contaminated with moisture or noncondensables.
Reclaim refrigerant, evacuate and recharge with
factory recommended charge. Replace filter dryer.
Table 15 Troubleshooting Table Continued
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
55
HRC(C,X) HIGH RISE SERIES – IOM
SUPPORT/REFERENCE MATERIAL
REFERENCE CALCULATIONS
HEATING
LDB = EDB +
QH GPM x 500
LWT = EAT +
QA cfm x 1.08
COOLING
LDB = EDB
SC
cfm x 1.08
QR LWT = EWT +
GPM x 500 LC = QC SC
SC SHR =
QC
COMMON CONVERSIONS
Air Flow Water Flow Static Pressure Water Pressure Drop Temperature Power Weight Weight EER COP
I/s = CFM x .47 I/s = GPM x .06 Pa = IWC x 249 FOH = PSI x 2.3 °C = (°F 32) x 5/9 kW = Btuh / 3412 oz = lb x 16 kg = lb / 2.2 COP x 3.413 EER / 3.413
ABBREVIATIONS & DEFINITIONS
LDB = Leaving air temperature dry bulb °F EDB = Entering air temperature dry
bulb °F GPM = Water flow rate gallons per minute CFM = Airflow rate cubic feet
per minute QH = Heating capacity Btuh QA = Heat of absorption Btuh SC =
Sensible cooling capacity Btuh QR = Heat of rejection Btuh LC = Latent cooling
capacity Btuh SHR = Sensible heat ratio
56
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
STARTUP & PERFORMANCE CHECKLIST
HRC(C,X) HIGH RISE SERIES IOM
FIGURE 31 Startup and Performance Checklist
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
57
HRC(C,X) HIGH RISE SERIES – IOM
NOTES
58
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
NOTES
HRC(C,X) HIGH RISE SERIES IOM
HRC(C,X) HIGH RISE SERIES IOM (REV. B 3/22)
59
Manufactured by:
8273 Moberly Lane Dallas, TX 75227 www.ae-air.com
The manufacturer works to continually improve its products and as a result, it
reserves the right to change design and specifications without notice. ©2021
AE-Air, 8273 Moberly Lane, Dallas, TX 75227
References
- Official Site of Copper Development Association, Inc. (USA)
- ЭЛЕКТРОСИЛА NEXT - Новый интернет-магазин на 1С-Битрикс