38H DV,40QNC009,012
Cooling Only
38QRV,40QNQ009,012
Heat Pump
Duct-Free Systems
Installation, Start-Up and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS ...................... l
GENERAL ........................................ ]
INSTALLATION ................................ 1-12
Step 1 -- Complete Pre-lnstallation Checks ...... l
• UNPACK UNITS
• INSPECT SHIPMENT
• CONSIDER SYSTEM REQUIREMENTS
Step 2 -- Mount Unit ............................. 6
• MOUNTING OUTDOOR UNqT ON GROUND
• MOUNTING OUTDOOR UNIT ON ROOF
• MOUNTING INDOOR UNIT ON WALL
Step 3 -- Complete Refrigerant Piping
Connections ................................... 7
• INDOOR UNITS
• OUTDOOR UNITS
• MAKE PIPING SWEAT CONNECTIONS
• AIR PURGING AND LEAK TEST
Step 4 -- Make Electrical Connections ........... 9
START-UP ....................................... 13
SERVICE ........................................ 13
MAINTENANCE ................................. 14
TROUBLESHOOTING .......................... 14,15
SAFETY CONSIDERATIONS
Installing and servicing air-conditioning equipment can be
hazardous due to system pressure and electrical components.
Only trained and qualified service personnel should install or
service air-conditioning equipment.
Untrained personnel can perform basic maintenance, such
as cleaning and replacing filters. All other operations should be
performed by trained service personnel. When working on air
conditioning equipment, observe safety precautions in litera-
ture, tags, and labels attached to unit.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloth for brazing operations. Have fire
extinguisher available. Read these instructions thoroughly.
Consult local building codes and the National Electrical Cede
(NEC) for special installation requirements.
GENERAL
These instructions cover the installation, start-up and
service of cooling only and heat pump duct-free systems.
INSTALLATION
Step 1 -- Complete Pre-lnstallation Checks
UNPACK UNITS (See Fig. l) -- Move the unit to final
location. Remove units from carton, being carefld not to
damage service valves and grilles. See Tables 1A and IB for
installation materials included in shipment_
40QNC,QNQ
Before installing or servicing system, always turn off main
power to system. Them may be more than one disconnect
switch. Turn off accessory heater power ff applicable. Elec-
trical shock can cause serious personal injury.
38HDV,QRV
Fig. 1 -- 38HDV, QRV and 40QNC,QNQ Units
Manufacturer reserves the right to disconbnue, or change at any time, specifications or designs wilhout no13ceand without incuning obligations,
Book 1 4 Catalog No. 07-38H40Q01-SI Pdnted in U.S.A. Form 38H,Q/40Q-1SI Pg 1 24)6 Replaces: New
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