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Payne PH3Z036 - User Manual

Payne PH3Z036
22 pages
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Installation Instructions
NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS ......................... 2
INTRODUCTION ................................... 2
RECEIVING AND INSTALLATION .................. 2-7
Check Equipment .................................. 2
Identify Unit .................................... 2
Inspect Shipment ................................. 2
Provide Unit Support ............................... 2
Slab Mount ..................................... 2
Ground Mount .................................. 2
Provide Clearances ................................. 2
Place Unit ........................................ 2
Select and Install Ductwork ........................... 2
Configuring Units for Downflow (Vertical) Discharge .... 3
Connect Condensate Drain ........................... 3
Install Electrical Connections ......................... 6
High-Voltage Connections ......................... 6
Routing Power Leads Into Unit ...................... 6
Connecting Ground Lead to Unit Ground .............. 6
Routing Control Power Wires ...................... 6
Accessory Electric Heat Wiring ...................... 6
PRE-START-UP .................................... 7
START-UP ...................................... 8-17
Check for Refrigerant Leaks .......................... 8
Start-Up Cooling and Make Adjustments ................ 8
Checking Cooling and Heating Control Operation ....... 8
Refrigerant Charge ................................. 8
No Charge ...................................... 8
Low Charge Cooling .............................. 8
Heating Mode Charge ............................. 8
Indoor Airflow and Airflow Adjustments ................ 9
Unit Controls ..................................... 9
High-Pressure Relief Valve ......................... 9
Loss-of-Charge Switch ........................... 9
Compressor Overload ............................ 10
Compressor Rotation ............................... 10
Sequence of Operation ............................. 10
Fan Operation .................................. 10
A05194
Fig. 1 - Unit PH3Z
Cooling Operation ............................ 10, 17
Heating Operation ............................... 17
Continuous Fan ................................. 17
Defrost ....................................... 17
Electric Resistance Heating ........................ 17
MAINTENANCE ................................ 17-20
Air Filter ........................................ 18
Unit Top Removal ................................. 18
Indoor Blower and Motor ........................... 18
Outdoor Coil, Indoor Coil, and Condensate Drain Pan ..... 19
Outdoor Fan ..................................... 19
Electrical Controls and Wiring ....................... 19
Refrigerant Circuit ................................. 20
Indoor Airflow ................................... 20
Metering Devices ................................. 20
Liquid Line Strainers ............................... 20
High Flow Valves ................................. 20
TROUBLESHOOTING .............................. 20
START-UP CHECKLIST ............................ 20
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Summary

SAFETY CONSIDERATIONS

INTRODUCTION

RECEIVING AND INSTALLATION

Check Equipment

Verifying unit model and serial number against shipping papers.

Inspect Shipment

Checking for shipping damage while unit is on pallet.

Provide Unit Support

Placing the unit on a solid, level concrete pad or ground.

Provide Clearances

Ensuring adequate ventilation and outdoor air for proper operation.

Place Unit

Moving and positioning the unit correctly for installation.

Select and Install Ductwork

Designing and installing duct systems according to standards.

CONFIGURE UNITS FOR DOWNFLOW (VERTICAL) DISCHARGE

Connect Condensate Drain

Installing the condensate drain connection per local codes.

INSTALL ELECTRICAL CONNECTIONS

High-Voltage Connections

Requirements for separate electrical service and disconnect switch.

Routing Power Leads Into Unit

Guiding high-voltage leads through conduit to the control box.

Connecting Ground Lead to Unit Ground

Securing the ground lead to the unit's ground screw.

Routing Control Power Wires

Creating a drip-loop for thermostat leads before routing.

PRE-START-UP

Check for Refrigerant Leaks

Locating and repairing refrigerant leaks and charging the unit.

Start-Up Cooling and Make Adjustments

Procedures for initial start-up in cooling mode.

Checking Cooling and Heating Control Operation

Verifying proper operation of cooling and heating controls.

Refrigerant Charge

Procedures for checking and adjusting refrigerant charge.

Indoor Airflow and Airflow Adjustments

Adjusting indoor airflow for optimal cooling and heating performance.

UNIT CONTROLS

High-Pressure Relief Valve

Valve that opens when pressure differential becomes excessive.

Loss of Charge Switch

Low-pressure switch that opens at 7 psig and closes at 22 psig.

Compressor Overload

Internal protection that interrupts power when current or temp is excessive.

Compressor Rotation

Verifying correct rotation direction for 3-phase compressors.

Sequence of Operation

Describes how the unit operates in cooling, heating, and fan modes.

Fan Operation

Control of the indoor fan via thermostat settings.

MAINTENANCE

Air Filter

Inspecting and replacing air filters monthly for optimal performance.

Unit Top Removal

Procedures for safely removing and replacing the unit top cover.

Outdoor Coil, Indoor Coil, and Condensate Drain Pan

Annual inspection and cleaning of coils and drain pan.

Outdoor Fan

Ensuring the condenser fan is free from obstructions for proper operation.

Electrical Controls and Wiring

Annual inspection of electrical controls and wiring for tightness.

Refrigerant Circuit

Inspecting tubing connections for oil accumulation indicating leaks.

Indoor Airflow

Checking airflow when improper performance is suspected.

Metering Devices

Location and function of AccuRater and TXV metering devices.

Liquid Line Strainers

Location of strainers protecting metering devices.

High Flow Valves

Location of high flow valves on compressor hot gas and suction tubes.

TROUBLESHOOTING

START-UP CHECKLIST

Payne PH3Z036 Specifications

General IconGeneral
SEERUp to 16
RefrigerantR-410A
Voltage208/230
Phase1
Cooling Capacity (BTU)36000

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