Carrier 50WQ User Manual
Single-package water source heat pumps
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Number One
AirConditbninq
Maker
Division of
Carrier Corporation
' ; '*• : '^•s\- >:■ .vt •:■ ; ':
Carrier Parkway • Syracuse NY 13221
Single-Package
Water Source Heat Pumps
INDEX
Page
SAFETY CONSIDERATIONS..............................
1
INTRODUCTION...................................................
INSTALLATION....................................................
Step 1 — Check Equipment and
Jobsite ..................................................................
2
• UNPACKAGE UNIT
• INSPECT EQUIPMENT
• COMPLETE OR CONSIDER THESE
SYSTEM REQUIREMENTS
Step 2 — Connect Supply Ductwork.................
2
Step 3 — Make Piping Connections..................3
• CONNECT WATER SUPPLY AND
RETURN LINES
• INSTALL BALANCING VALVES
• INSTALL WATER REGULATING
VALVES
Page
• MAKE CONDENSATE DRAIN LINE
CONNECTION
Step 4 — Make Electrical Connections.. 3,4
• INSTALL A BRANCH CIRCUIT
DISCONNECT PER NEC
• BRING POWER LEADS INTO UNIT
• CONNECT GROUND LEAD TO
GROUND LUG IN SPLICE BOX
• SET FAN MOTOR SPEED
• CONNECT CONTROL POWER WIRING
START-UP............................................................ 4
SERVICE...............................................................6
MAINTENANCE..................................................
SAFETY CONSIDERATIONS
Installation and servicing of air conditioning
equipment can be hazardous due to system pressure
and electrical components. Only trained and quali
fied service personnel should install, repair or
service air conditioning equipment.
Untrained personnel can perform basic mainten
ance functions of cleaning coils and cleaning and
replacing filters. All other operations should be
performed by trained service personnel. When
working on air conditioning equipment, observe
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 brazing
operations. Have fire extinguishers available for all
brazing operations.
WARNING; Before performing service or
mabiienaace operations oa system, turn off
rsi^ swsidr io sodoor anti and oatdoor
onit, Tam acces&oiy Sweater power switch if
applicate.
shock, conld cause per-
I'
duct
conn
FLANGE
© Carrier Corporation 1980
Fig. 1 — Dimensions and Connections
Form 50WQ-2SI