Table of Contents
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These instructions must be read and understood completely before attempting installation.
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
Unit Support ...................................
4
.......................
5 - 10
Electrical Wiring ...........................
10 - 11
...........................
12 - 13
............................
14
........................
14 - 17
Sequence of Operation .........................
18
...............................
18
Maintenance ..................................
18
..............
19
R-410A Quick Reference Guide .................
20
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.
428 01 5103 02
May 2010
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Table of Contents
Related Manuals for ICP N4H3
Summary of Contents for ICP N4H3
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Page 1: Table Of Contents
These instructions must be read and understood completely before attempting installation. 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 hidden company immediately and file a concealed damage claim. damage. If damage is found, notify the transportation 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: Clearances
Figure1 Clearances (various examples) !!ii!i 24" (152mm) (610mm) Service 24" 18" (610mm) (457mm) Service 6" 18" 152ram) (457mm) 18" (457mm) 18" (457mm) (152mm) (152mm) 24" 24" 18" 18" (610mm) (610mm) (457mm) (152mm) Service Service L_" 6" 4" (102mm) (102mm) wide fence (152mm) Post 24"... -
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 property damage. -
Page 5: Refrigeration System
REFRIGERATION SYSTEM A. COMPONENT MATCHES Installing with Indoor Piston - cooling operation. Check to see that the proper system components are in (Heat pumps also use an outdoor piston for heating place, especially the indoor coil. operation, refer to section F.) R-410A outdoor units can only be used with R-410A Check piston size shipped with indoor unit to see if it... - Page 6 B. REFRIGERANT LINESETS The refrigerant line set must be properly sized to assure maximum efficiency and proper oil circulation. PERSONALINJURY HAZARD Refer Product Specifications Long Line Applications Guideline for line set sizing. Failure to relieve system pressure could result in personal injury and/or death.
- Page 7 C. ROUTINGAND SUSPENDING REFRIGERANT enough so that lines can be wrapped with extra insulation. LINES Fill all gaps with RTV caulk. This will prevent noise transmission between the tubing and the foundation or Run refrigerant lines as straight and direct as possible, wall.
- Page 8 F. SERVICE VALVES G. BRAZING CONNECTIONS NOTE: Service valves are closed and plugged from the factory. For Liquid Service Valve - Braze lineset to adapter tube Outdoor units are shipped with a refrigerant charge BEFORE bolting adapter to valve. This helps prevent sealed in the unit.
- Page 9 H. EVACUATING L INESETANDINDOOR COIL Triple Evacuation Method The unit is shipped with a factory refrigerant charge. The The triple evacuation method should only be used when liquid line and suction line service valves have been system does not contain any water in liquid form and closed after final testing at the factory.
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Page 10: Electrical Wiring
I. OPENING SERVICE VALVES After the refrigerant charge has bled into the system, open the Liquid service valve. Outdoor units are shipped with a refrigerant charge sealed in the unit. Opening the service valves releases NOTE: These are not back-seating valves. - Page 11 Figure11 Typical Thermostat (Control Circuit) Connections NOTE: WHEN USING OUTDOOR THERMOSTATS, MUST BE ENERGIZED WHEN REQUESTING SUPPLEMENTAL HEAT. SYSTEMS WITH ONE OUTDOOR THERMOSTAT SYSTEMS WITH TWO OUTDOOR THERMOSTATS THERMOSTAT INDOOR OUTDOOR DEFROST THERMOSTAT INDOOR OUTDOOR DEFROST SUBBASE SPLICE SPLICE BOARD SUBBASE SPLICE SPLICE...
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Page 12: Defrost System
DEFROST SYSTEM A. DEFROST THERMOSTAT Jumper across the DFT terminals on the defrost board (Figure 13). With this method, the defrost The defrost thermostat is factory installed on a short tube thermostat is removed from the circuit, and operation stub extending from the coil end plate. Refer to Figure 12 of the defrost thermostat itself will not be observed. - Page 13 Figure13 Defrost Control Board +O_J H9C_ © < J2 DDD OOOO 30 60 90 T1CC SPEEDUP 428 01 5103 02...
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Page 14: Start-Up Procedure
START-UP PROCEDURE Set indoor thermostat selector switch to OFR Turn ON all electrical disconnect devices. If unit has a crankcase heater, energize the heater and wait 24 hours before proceeding. Set indoor thermostat at desired temperature. sure setpoint is below indoor ambient temperature to call for cooling, or above indoor ambient to call for heating. - Page 15 A. UNITS WITH COOLING MODE TXV B. UNITS WITH INDOOR PISTON Units installed with cooling mode TXV require charging by Units installed with indoor pistons require charging by the the subcooling method. superheat method. The following procedure is valid when indoor airflow is Operate unit a minimum of 15 minutes before...
- Page 16 C. HEATING MODE To check system operation during heating cycle, refer to the Tech Label on outdoor unit. This chart indicates whether a correct relationship exists between system operating pressure and air temperature entering indoor and outdoor units. If pressure and temperature do not match on chart, system refrigerant charge may not be correct.
- Page 17 Figure16 Rating Plate (required) Subcooling Temperature °F (° C) Measured Liquid ........... Pressure (psig) R-410A Required Liquid Line Temperature o F (oC) ii_%i_4_!i_i_i_%iiiiiiiii iG_!;_!!!!:!_i_i_:!i:!i_4_i!i!:iiiili;i;iiiiiiiii:! iiiiiiiiiiiiiiiiiiii'ii_iii_:ii_iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiil iiiiiiiiiiiiiiiiiiiiiiiiiii_:_!iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii iiiiiiiiiiiiiiiiiiiiiiii_i_!ii!ii!ii!ii!ii!ii!ii!ii!ii!ii!ii!iill iiiiiiiiiiiiiiiiiiiiiiiiiii_ii!ii!ii!ii!ii!ii!ii!ii!ii!ii!ii!ii!ii!il iiiiiiiiiiiiiiiiiiiiiiii_!{_ii_ii_ii_i 428 01 5103 02...
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Page 18: Sequence Of Operation
SEQUENCE OF OPERATION A. COOLING MODE B. HEATING MODE On a call for cooling, the thermostat makes circuits R-O, On a call for heating, the thermostat makes circuits R-Y R-Y, and R-G. Circuit R-O energizes reversing valve, and R-G (circuit R-O is NOT made, and the reversing switching it to cooling position. -
Page 19: Comfort Alert Tm Diagnostics Codes
Figure18 Comfort Alert Diagnostics (some models) StatusLED Status LED Description Status LED Troubleshooting Information Green "POWER" Supply voltage is present at module terminals Module has power Red "TRIP" Thermostat demand signal 1. Compressor protector is open Y1 is present, but the com- 2. -
Page 20: R-410A Quick Reference Guide
R-410A QUICK REFERENCE GUIDE • R-410A refrigerant operates at 50% - 70% higher pressures than R-22. Be sure that servicing equipment and replacement components are designed to operate with R-410A. • R-410A refrigerant cylinders are rose colored. • Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400. •...