AE-Air IOM 787702 HRC(C,X) High Rise Series Water Source Heat Pump Instruction Manual

June 9, 2024
AE-Air

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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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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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

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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
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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.

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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:

  1. Visually inspect unit for any shipping damage. Damage must be reported immediately to the shipping company to make a claim.
  2. 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.
  3. Verify that unit nameplates on the data label match the sales order or bill of lading (including, unit configuration, size and voltage).
  4. Immediately before installation, remove unit front panel and verify that all electrical connections are tight and that there are no loose wires.
  5. 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.
  6. 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.
  7. Ensure that the evaporator distributor tubes are not touching one in another and that they are over the drain pan.
  8. 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

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FIGURE 8 ­ Unit Dimensions

HRC(C,X) HIGH RISE SERIES ­ IOM (REV. B 3/22)

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UNIT DIMENSIONAL DATA CONTINUED

FIGURE 9 ­ Unit Dimensions

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UNIT DIMENSIONAL DATA CONTINUED

HRC(C,X) HIGH RISE SERIES ­ IOM

FIGURE 10 ­ Unit Dimensions

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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

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

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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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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.

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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.

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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

  1. Ensure that all electrical power is removed from the unit and that the local disconnect is locked out.
  2. Remove the screws on the front electrical panel with a ¼” hex head driver.
  3. Remove the electrical front panel and access the electrical box
  4. Disconnect the electrical harnesses located on the top of the ebox.
  5. 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

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