Payne PA1Z030 Installation, Start-Up And Service Instructions Manual

Cancels: New
II PAIZ 24-1
11/15/97
CONTENTS
Page
SAFETY CONSIDERATIONS ...................... 1 4
I. General ................................... 1
RECEIVING AND INSTALLATION .................. 5-10
I. Step 1 -- Check Equipment .................. 5
II. Step 2 -- Provide Unit Support ............... 5
Ill. Step 3 -- Provide Clearances ................ 5
IV. Step 4 -- Place Unit ........................ 5
V. Step 5 -- Select and install Ductwork .......... 6
VI. Step 6 -- Provide for Condensate
Disposal .................................. 7
VII. Step 7 -- Install Electrical Connections ......... 7
PRE-START-UP ................................. 11
START-UP .................................... 11 14
I. Check for Refrigerant Leaks ................. 11
I1. Start-Up Cooling Section and
Make Adjustments ......................... 11
II1. Refrigerant Charge ......................... 11
IV. Indoor Airflow and Airflow Adjustments ....... 14
V. Unit Controls .............................. 14
VI. Sequence of Operation ..................... 14
MAINTENANCE ................................ 14 17
I. Air Filter .................................. 16
I1. Unit Top Removal (Condenser
Coil Side) ................................. 16
II1. Evaporator Blower and Motor ................ 16
IV. Condenser Coil, Evaporator Coil,
and Condensate Drain Pan .................. 16
V. Condenser Fan ............................ 17
VI. Electrical Controls and Wiring ............... 17
VII. Refrigerant Circuit ......................... 17
VIII. Evaporator Airflow ......................... 17
IX. Metering Devices .......................... 17
X. Liquid Line Strainer ........................ 17
TROUBLESHOOTING COOLING CHART ............ 18
START-UP CHECKLIST .......................... CL-1
NOTE TO INSTALLER -- Before the installation, READ
THESE INSTRUCTIONS CAREFULLY AND COMPLETELY.
Also, make sure the Owner's Manual and Sex-vice Instruc
tions are left with the unit after installation.
Fig. 1 -- Unit PAIZ (Size 036 Shown)
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical compo-
nents. Only trained and qualified workers should install,
repair, or service air-conditioning equipment.
Untrained workers can perform basic maintenance flmc-
tions of cleaning coils and filters. All other operations should
be performed by trained service people. When working on air-
conditioning equipment, pay attention to precautions in the
literature, tags and labels attached to the unit, and other safety
precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves.
Use quenching cloth for unbrazing operations. Have fire
extinguisher available for all brazing operations.
I. GENERAL
The PA1Z cooling unit is flflly selficontained and designed
for outdoor installation, See Fig. 1. As shown in Fig. 2 4, units
are shipped in a horizontal discharge configuration fox" instal
lation on a ground level slab. All units can be field converted
to downflow discharge configurations for rooftop applications
with a field-supplied plenum.