HP H4H3 manual Refrigeration System

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INSTALLATION INSTRUCTIONS

3-phase R-410A Split System Heat Pump

 

 

REFRIGERATION SYSTEM

A. COMPONENT MATCHES

Check to see that the proper system components are in place, especially the indoor coil.

R-410A outdoor units can only be used with R-410A specific indoor coils. If there is a refrigerant mis-match, consult the indoor coil manufacturer to determine if a refrigerant conversion kit is available for the indoor coil.

This outdoor unit is designed for use only with indoor coils that utilize a TXV refrigerant metering device. If any other type of metering device is installed on the indoor coil, consult the indoor coil manufacturer to determine if a TXV conversion kit is available.

When installing a TXV on an indoor coil, follow the instructions provided with the new TXV.

A typical TXV installation is shown in Figure 3.

! CAUTION

PRODUCT DAMAGE HAZARD

Failure to follow this caution may result in product damage.

Indoor coil and outdoor unit must be listed as a certified combination (match) in the ARI Unitary Directory of Certified Products.

Indoor coil must have R-410A specific, TXV refrig‐ erant metering device.

Figure 3

Typical TXV Installation

 

 

INDOOR

COIL

EQUALIZER

TUBE

SENSING

SUCTION

TUBE

BULB

 

 

LIQUID

 

TUBE

TXV

 

SENSING BULB

STRAP

(EITHER SIDE)

 

 

SUCTION

 

TUBE

8 O'CLOCK

4 O'CLOCK

B. REFRIGERANT LINE SETS

The refrigerant line set must be properly sized to assure maximum efficiency and proper oil circulation.

Refer to Product Specifications and Long Line Applications Guideline for line set sizing.

NOTE: If the line set actual length is to exceed 80 feet, or if there is more than 20 feet vertical separation between outdoor and indoor units, refer to the Long Line Application Guideline document for additional instructions.

NOTE: Line set actual length must not exceed 200 feet.

NOTE: A crankcase heater must be used when the refrigerant line length exceeds 80 feet.

If it is necessary to add refrigerant line in the field, use dehydrated or dry, sealed, deoxidized, copper refrigeration tubing. Do not use copper water pipe.

Do not remove rubber plugs or caps from copper tubing until connections are ready to be made.

Be extra careful when bending refrigeration tubing. Tubing can “kink” easily, and if this occurs, the entire length of tubing must be replaced.

! WARNING

PERSONAL INJURY HAZARD

Failure to follow this warning could result in per‐ sonal injury and/or death.

Relieve pressure and recover all refrigerant before servicing existing equipment, and before final unit disposal. Use all service ports and open all flow- control devices, including solenoid valves.

!CAUTION

UNIT OPERATION HAZARD

Failure to follow this caution may result in improp‐ er product operation.

Do not leave system open to atmosphere any lon‐ ger than absolutely required for installation. Inter‐ nal system components - especially refrigerant oils - are extremely susceptible to moisture con‐ tamination. Keep ends of tubing sealed during installation until the last possible moment.

C. ROUTING AND SUSPENDING REFRIGERANT LINES

Run refrigerant lines as straight and direct as possible, avoiding unnecessary bends and turns. Always insulate the entire suction line. Both lines should be insulated when routed through an attic or when routed through an underground raceway.

When routing refrigerant lines through a foundation or wall, do not allow refrigerant lines to come in direct contact with the building structure. Make openings large enough so that lines can be wrapped with extra insulation. Fill all gaps with RTV caulk. This will prevent noise

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Contents Table of Contents Installation InstructionsInspect NEW Unit Safety ConsiderationsLocation ClearancesClearances various examples Roof TOP Installation Ground Level InstallationUnit Support Fastening Unit DownRefrigeration System Routing and Suspending Refrigerant Lines Installed at Indoor CoilLiquid Line Filter-Drier Outdoor Unit Higher than Indoor UnitEvacuating Line SET and Indoor Coil Installation Instructions Service ValvesBrazing Connections Fire Hazard Deep Vacuum Gauge Response Opening Service ValvesSystem Conditions Triple Evacuation MethodElectrical Wiring Typical Thermostat Control Circuit Connections Defrost Thermostat Defrost SystemDefrost Thermostat Defrost Control BoardCooling Mode START-UP ProcedureHeating Mode Refrigerant ChargeSequence of Operation Maintenance TroubleshootingYellow Alert Missing Phase Comfort Alertt Diagnostics some modelsYellow Alert Reverse Phase Red Trip LEDTrip LED and Alert LED 410A Quick Reference GuideAlert Flash Code Alert Flash Code 5 or

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