Table of Contents
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Theseinstructionsmust bereadand understoodcompletelybeforeattemptinginstallation.
Safety Labeling and Signal Words
DANGER,
WARNING,
CAUTION,
and
NOTE
The
signal
words
DANGER,
WARNING,
CAUTION, and NOTE are used to identify levels of
hazard 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:
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.
TABLE OF CONTENTS
Inspect New Unit ...............................
2
...........................
2
Location .......................................
2
.................................
2 - 3
...................................
4
........................
4 - 8
Electrical Wiring ............................
9 - 10
Start-up Procedure ............................
11
........................
11 - 12
Sequence of Operation .........................
13
...............................
13
..................................
13
TM
..............
14
DEATH, PERSONAL INJURY, AND/OR PROPERTY
DAMAGE HAZARD
Failure to carefully
read and follow
this warning
could result in equipment
malfunction,
property
damage, personal
injury and/or death.
Installation
or repairs made by unqualified
per-
sons could result in equipment malfunction, prop-
erty damage, personal
injury and/or death.
The information
contained
in this manual is in-
tended for use by a qualified service technician fa-
miliar with safety procedures and equipped with
the proper tools and test instruments.
Installation
must
conform
with
local
building
codes
and with the
National
Electrical
Code
NFPA70 current
edition
or Canadian
Electrical
Code Part 1 CSA C.22.1.
421 01 5002 01 May 2009
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Table of Contents
Related Manuals for ICP N2A3
Summary of Contents for ICP N2A3
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Page 1: Table Of Contents
Theseinstructionsmust bereadand understoodcompletelybeforeattemptinginstallation. Safety Labeling and Signal Words DANGER, WARNING, CAUTION, NOTE Signal Words in Manuals The signal word WARNING is used throughout this signal words DANGER, WARNING, manual in the following manner: CAUTION, and NOTE are used to identify levels of hazard seriousness. -
Page 2: Inspect New Unit
INSPECT NEW UNIT After uncrating unit, inspect thoroughly for hidden company immediately and file a concealed damage damage. If damage is found, notify the transportation claim. SAFETY CONSIDERATIONS Consult a qualified installer, service agency, or the dealer/distributor for information and assistance. qualified installer must use factory authorized kits and ELECTRICAL SHOCK HAZARD... - Page 3 Figure1 Clearances (various examples) (152mm) 24" (610mm) Service 24" 18" (610mm) (457mm) Service 18" (457mm) 18" (457mm) 18" (457mm) (152mm) (152mm) 24" 24" 18" 18" (610mm) (610mm) (457mm) (152mm) Service Service !\" 4" (102mm} (102mm) wide fence 24" (610mm) (610mm) (610mm) Service Service...
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Page 4: Unit Support
UNIT SUPPORT NOTE: Unit must be level + 2 degrees {% inch rise or fall per foot of run (10mm rise or fall per 305 mm of run) } or compressor may not function properly. PROPERTY DAMAGE HAZARD A. GROUND LEVEL INSTALLATION Failure to follow this caution may result in proper- The unit must be level and supported above grade by ty damage. - Page 5 A typical TXV installation is shown in Figure 3. Figure 3 Typical TXV Installation PERSONALINJURY HAZARD Failure to relieve system pressure could result in personal injury and/or death. Relieve pressure and recover all refrigerant before EQUALIZER servicing existing equipment, and before final unit TUBE disposal.
- Page 6 Figure Routing and Suspending Refrigerant Lines O TO JOIST HANGER STRAP (AROUND SUCTION TUBE ONLY) I_"_ LIQUID TUBE S;'cTA:'oO2T S CTO, 1" (25mm) MIN -_D,-I LIQUID TUBE THROUGH THE WALL SUSPENSION Liquid Line Filter-Drier Figure 5 Installed at Indoor Coil UNIT OPERATION HAZARD Failure to follow this caution may result in improp- er product operation.
- Page 7 F, SERVICE VALVES H. EVACUATING LINE SET AND INDOOR COIL Service valves are closed and tube stubs are plugged The unit is shipped with a factory refrigerant charge. The from the factory. Outdoor units are shipped with a liquid line and suction line service valves have been refrigerant charge sealed in the unit.
- Page 8 TripleEvacuationMethod NOTE: Open the Suction service valve first. If the Liquid The triple evacuation method should only be used when service valve is opened first, oil from the compressor may system does not contain any water in liquid form and be drawn into the indoor coil TXV, restricting refrigerant vacuum pump is only capable of pulling down to 28 inches flow and affecting operation of the system.
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Page 9: Electrical Wiring
ELECTRICAL WIRING Wiring Connections Make all outdoor electrical supply (Line Voltage) connections with raintight conduit and fittings. Most ELECTRICAL SHOCK HAZARD codes require a disconnect switch outdoors within sight of the unit. Consult local codes for special requirements. Failure to turn off the main (remote) electrical dis- connect device could result in personal injury or Route electrical supply (Line Voltage) wiring through... - Page 10 Figure10 Typical Thermostat Connections THERMOSTAT FURNACE AIR CONDITIONER --I-q 24 VAC HOT 24 VAC COM ..HEAT STAGE 1 COOL STAGE 1 ..INDOOR FAN THERMOSTAT AIR CONDITIONER FAN COIL --F-I 24 VAC HOT 24 VAC COM ..- -D HEAT STAGE 1 --[_- ..
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Page 11: Start-Up Procedure
START-UP PROCEDURE Set indoor thermostat selector switch to OFF. Set indoor thermostat at desired temperature. sure setpoint is below indoor ambient temperature Turn ON all electrical disconnect devices. or thermostat will not call for cooling. If unit has a crankcase heater, energize the heater Set indoor thermostat selector switch to COOL. - Page 12 Figure11 Rating Plate (required) Subcooling Temperature °F (oC) Measured Liquid Pressure (psig) R-22 Required Liquid Line Temperature °F (°C) iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii_;_i_i_i_i_i_i_i_i_i_i_i_i_i_i_i_i_i_i_i_i_ii_i_!i!i! iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii_!_!_!_!_!_!_!_!_!_!_! 421 01 5002 01...
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Page 13: Sequence Of Operation
SEQUENCE OF OPERATION With power supplied to indoor and outdoor units, When thermostat satisfied, its contacts open, transformer is energized, de-energizing contactor and blower relay. Compressor and motors stop. On a call for cooling, the thermostat makes circuits R-Y and R-G. Circuit energizes contactor,... -
Page 14: Comfort Alert Diagnostics Codes
Figure13 Comfort Alert Diagnostics (some models) StatusLED Status LED Description Status LED Troubleshooting Information Green "POWER" Module has power Supply voltage is present at module terminals Red "TRIP" Thermostat demand signal 1. Compressor protector is open Y1 is present, but the 2.