International Comfort Products Corporation NASA001WS Installation Instructions Manual
INSTALLATION INSTRUCTIONS
Winter Start Control
NASA001WS
These instructions must be read and understood completely before attempting installation.
Safety Considerations:
Installing and servicing of air conditioning equipment can be hazardous due to system pressure and electrical
components. Only trained personnel should install or service air conditioning equipment.
Untrained personnel can perform basic maintenance functions such as cleaning coils or 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 and on tags and labels attached to the unit.
Follow all safety codes. Wear safety glasses and work gloves. Use a quenching cloth for brazing operations. Have a
fire extinguisher available.
Safety Labeling and Signal Words
DANGER, WARNING, CAUTION, and
NOTE
The signal words DANGER, WARNING, CAUTION, and NOTE are used to identify levels of haz-
ard seriousness. The signal word DANGER is only
used on product labels to signify an immediate hazard. The signal words WARNING, CAUTION, and
NOTE will be used on product labels and throughout this manual and other manuals that may apply
to the product.
DANGER − Immediate hazards which will result in
severe personal injury or death.
WARNING − Hazards or unsafe practices which
could result in severe personal injury or death.
CAUTION − Hazards or unsafe practices which
may result in minor personal injury or product or
property damage.
NOTE − Used to highlight suggestions which will
result in enhanced installation, reliability, or operation.
Signal Words in Manuals
The signal word WARNING is used throughout this
manual in the following manner:
WARNING
!
The signal word CAUTION is used throughout this
manual in the following manner:
!
Signal Words on Product Labeling
Signal words are used in combination with colors
and/or pictures on product labels.
WARNING
CAUTION
INTRODUCTION
This instruction covers the installation of Winter Start
Control Part No. NASA001WS on split−system air
conditioners.
The Winter Start Control prevents nuisance tripping of the
low−pressure switch when air conditioners are operated
in cold (winter) temperatures.
!
ELECTRICAL SHOCK HAZARD
Failure to turn off electric power could result in
personal injury or death.
Before installing or servicing system, turn off
main power to the system. There may be more than
one disconnect switch, including accessory
heater(s).
WARNING
482 01 5180 00 January 2006
INSTALLATION INSTRUCTIONS Winter Start Control
DESCRIPTION AND USAGE
The Winter Start Control must be used where low
evaporator temperatures or nuisance tripping of
low−pressure switch may be encountered. The Winter
Start Control bypasses the low−pressure switch for the
first 3 minutes of operation during each cycle.
Included in the kit are:
Time−Delay Relay (TDR) CESO130062−00 1
Installation Instructions 1
INSTALLATION
Mount winter start control inside control box. Wire the
time−delay relay in parallel with the low−pressure switch
(refer to Figure 1.)
Figure 1 Winter Start Control Wiring
T1 T3
L
NOTE: There will be a delay of approximately 3 minutes
before low−pressure switch becomes part of the control
circuit.
WINTER
START
CONTROL
T2
C
LPS
C
L
LPS
LOW−PRESSURE SWITCH
CONTACTOR COIL
LOGIC − TIME DELAY
FACTORY WIRING
FIELD WIRING
A98527
2 482 01 5180 00
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