ICP CHP043AKA1, CHP430AKA1, CHP048AKA1, CHP060AKA1, HHP048GKA1 Installation Instructions Manual

Installation

Instructions

SPLIT SYSTEM

Premium Line

AC & HP CONDENSERS

Save This Manual for Future Reference

421 01 3201 07

Dec. 2004

_Installation Instructions Split System Condensers

Installation/Startup Information

These instructions must be read and understood completely before attempting installation.

Installation or repairs made by unqualified
persons can result in hazards to you and others.
Installation MUST conform with local building
codes or, in the absence of local codes, with the

the National Electrical Code NFPA 70/ANSI
C1-1999 or current edition and Canadian

Electrical Code Part 1 CSA C.22.1.

The information contained in this manual is

intended for use by a qualified service technician
familiar with safety procedures and equipped
with the proper tools and test instruments.

Failure to carefully read and follow all instruc-

tions in this manual can result in equipment

malfunction, property damage, personal injury

and/or death.

After uncrating unit, inspect thoroughly for hidden damage.

If damage is found, notify the transportation company im-
mediately and file a concealed damage claim.

CAUTION

Improper installation, adjustment, alteration, service or

maintenance can void the warranty.
The weight of the condensing unit requires caution and

proper handling procedures when lifting or moving to avoid
personal injury. Use care to avoid contact with sharp or
pointed edges.

Safety Precautions

1. Always wear safety eye wear and work gloves when
installing equipment.

2. Never assume electrical power is disconnected. Check
with meter and disconnect.

3. Keep hands out of fan areas when power is connected
to equipment.

4. R-22 causes frost-bite burns.

5. R-22 is toxic when burned.

NOTE TO INSTALLING DEALER: The Owners Instruc-

tions and Warranty are to be given to the owner or promi-
nently displayed near the indoor Furnace/Air Handler Unit.

Dimensions

Minimum Mounting Pad Sizes with pad starting at
9 from structure for minimum clearances

26-1/2

-- 24-3/4 --

Chassis #1

FRONT

35

33

Chassis #3

Chassis #2

32-3/4

Chassis #1 20" W X 20" D
Chassis #2 24" W X 26" D
Chassis #3 27" W X 28" D

/

"H" = Ranges from 26" to 44"

Refer to Specification Sheet

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11/2

38-11-17

I Split System Condensers Installation Instructions

Locating The Outdoor Unit:

Check local codes covering zoning, noise, platforms. Roof top installations are acceptable providing the roof will

support the unit and provisions are made for water drain-
age and the noise or vibration through the structure.

If practical, avoid locating next to fresh air intakes, vent or
bedroom windows. Noise may carry into the openings and

disturb people inside.

Placement of the unit should be in a well drained area or
unit must be supported high enough so runoffwill not enter

the unit.

Do not locate where heat, lint or exhaust fumes will be dis-

charged on unit (as from dryer vents).

Clearances:

Do not install the unit in a recessed or confined area where

recirculation of discharge air may occur.

Heat Pumps Only: The top surface of platform must be

above average winter snow levels to prevent coil blockage.

Nominal operating clearances, where practical, are 48
inches (120 cm) above unit for discharge air and 18 inches

(40cm) around coil for intake air onthree sides. Clearance

on one side (normally between unit and structure) may be

reduced to 6 inches (15cm). Nominal clearances are based

from a solid parallel object, wall, roof overhang, etc.

Do Not install under roof overhangs without guttering. A
minimum vertical clearance of 48" is required to overhang.

The clearance may be reduced from a single object with a
small surface area, such as the end of a wall, outside cor-

ner of a wall, fence section or a post, etc. As a general rule
the width ofthe object should equal the minimum clearance
from the unit. For example, a 4 inch (lOcm) fence post
could be 4 inches (lOcm) from the unit.

Unit Support:

Inside corner locations on single story structures require

evaluation. Large overhanging soffits may cause air recir-
culation in a corner area even though recommended clear-

ances are maintained. As a guide locate the unit far enough
out so that half of the discharge grille is out from under the

soffit.

Two or more units may be spaced with 18 inches (45cm)
between units.

A service clearance of 24 inches (60cm) is desirable from
control box end or side. Control box and corner panel be-

low it can be loosened and moved out to the side to facili-
tate servicing. Internal components can be accessed

through control box corner or top only.

The unit must be level, and supported above grade by

beams, platform or a pad. Platform or pad can be of open or
solid construction but should be of permanent materials
such as concrete, bricks, blocks, steel or pressure treated
timbers approved for ground contact. Refer to Unit Clear-
ances to help determine size of supports etc. Soil condi-
tions should be considered so the platform or pad does not
shift or settle excessively and leave the unit only partially
supported.

CAUTION

Inadequate support could cause excessive vibration and

noise or binding and stress on refrigerant lines resulting in

equipment failure.
To minimize vibration or noise transmission, it is recom-

mended that supports not be in contact with the building
structure. However, slabs on grade constructions with an
extended pad are normally acceptable.

A. Ground Level Installation:

If beams or an open platform are used for support it is rec-
ommended that the soil be treated or area be graveled to

retard the growth of grasses and weeds.

B. Roof Top Installation:

This type of installation is not recommended on wood
frame structures where low noise levels are required.

Supporting structure or platform for the unit must be level. If
installation is on a flat roof the unit should be 4 inches

(10cm.) above roof level. Four by four posts placed over a

load bearing wall make a suitable mounting platform.

If possible, place the unit over one or more load bearing
walls. If there are several units, mount them on platforms
that are self-supporting and span load bearing walls.
These suggestions are to minimize noise and vibration
transmission through the structure. If the structure is a
home or apartment, avoid (if practical) locating the unit
over bedrooms or study.

NOTE: When condensing unit is to be installed on a
bonded guaranteed roof, a release must be obtained from
the building owner to free the installer from all liabilities.

_Installation Instructions

Figure 2 I Clearances

Recommended Clearances

Split System Condensers I

Minimum Clearances

24"

24"

24"

24"

24"

24"

Minimum Clearances

Minimum Clearances

24"

18"

6_ , !

F J

J

18"

24"

18"

Minimum Clearances

24"

24"

24"

24"

I Split System Condensers Installation InstructionsI

Installing Refrigerant Lines

Component Matches

Check to see that you have the proper system compo-
nents. APPROVED MATCHED SYSTEM COMPONENTS

MUST BE USED. Refer to the Sales Specification Sheet

or Split System Summary for match data and orifice

sizes.

The outdoor units are shipped with a refrigerant charge to

match the indoor unit and 25 ft. (7.5m) of refrigerant line. If

shorter or longer lines are used, the charge will have to be
adjusted.

OUR STANDARD RECOMMENDED REFRIGERANT

LINE LENGTH IS 75 ft. WITH A MAXIMUM VERTICAL
SEPARATION OF 50ft. BETWEEN THE OUTDOOR AND
INDOOR UNITS WITH 3TRAPS, 2 TRAPS FOR 40 FOOT

RISE. LONGER REFRIGERANT LINES CAN BE
INSTALLED BY USING THE EXTENDED LENGTH RE-

FRIGERANT PIPING MANUAL #42106111400 WITH
PRIOR APPROVAL FROM ICP TECHNICAL SERVICE
DEPARTMENT.

Restrictor Orifice

Some indoor matches use a restrictor orifice in the fitting at

the indoor coil. Some matches may require a different ori-
fice for proper system performance and it must be changed

before the refrigerant lines are connected.

Changing the Restrictor Orifice

The restrictor orifice is located in a fitting in the liquid line.
The fitting is actually the distributor end of the cap tube as-

sembly.

1. Remove the liquid line fitting and replace restrictor ori-
fice. (STANDARD RIGHT HAND THREAD)

2. Make sure the restrictor is installed with the rounded
end toward the feeder tubes. See Figure 3.

Figure 3 J Restrictor Orifice

Nut and Liquid Line

with Strainer

! ''°e

_ Feeder Tubes

Refrigeration Line Sets

If itis necessary to add tubing in the field, use dehydrated or
dry sealed deoxidized copper refrigeration tube. DO NOT
use copper water pipe.

It is important that no tubing is cut or seals broken until

you are ready to actually make connections to the
evaporator and to the condenser section.

Do not remove rubber plugs or copper caps from the
tube ends until ready to make connections at evapora-

tor and condenser.

PLEASE! UNDER NO CIRCUMSTANCES LEAVE THE

LINES OPEN TO THE ATMOSPHERE FOR ANY

PERIOD OF TIME.

Be extra careful with sharp bends. This tubing can "kink"
very easily, and if this occurs, the entire tube length will
have to be replaced. Extra care at this time will eliminate
future service problems.

Suspension And Installation Of

Refrigeration Lines

DO NOT fasten liquid or suction lines in direct contact with
the floor or ceiling joist. Use an insulated or suspension
type of hanger. Keep both lines separate, and insulate the
suction line. Both lines should be insulated in extremely
long runs in an attic or underground in a raceway, 50' or

more.

_ Installation Instructions

Do not let refrigerant lines come in direct contact with

foundation. When running refrigerant lines through the
foundation or wall, the openings should be made large

enough to allow for a sound absorbing material to be
placed or installed between the tubing and the foundation.

This will prevent noise transmission between the tubing
and the wall section (foundation) or the building.

Installation Instructions For Condensing
Units That Are Higher Than Evaporator

It is recommended that vertical suction risers not be up-

sized. Proper oil return to the compressor should be main-
tained with suction gas velocity. If velocities drop below

1500 fpm (feet per minute), oil return will be decreased. An

oil trap should be installed every 20' of vertical suction line

riser (condenser above evaporator,) Refer to line sizing

charts,

Figure4[ OilTraps

10" Max

Min,

0 ft.

Line Valves

The outdoor condensing unit is supplied with straight sweat

brass service valves with copper stubs,

All line valves are positioned to seal the refrigerant in the
condensing unit with gauge ports open to connecting lines
when the Schraeder valve is depressed. Gauge ports have

Schraeder installed and require use of charging hoses with

depressors.

Split System Condensers I

Brazing Connections

Fire Hazard

Refrigerant and oil mixture under pressure could
ignite as it escapes and contacts brazing torch
resulting in Fire. Make sure the refrigerant charge
is properly removed from both the high and low
sides of the system before brazing any compo-

nent or lines.
FAILURE TO DO SO COULD RESULT IN BODILY

INJURY OR DEATH.

Before making braze connections, be sure all joints are
clean. Before heat is applied for brazing, nitrogen should
be flowing through the tubing to prevent oxidation and
scale formation on the inside of the tubing.

Liquid & Suction Lines

Fully annealed refrigeration lines should be used when
installing the system.

The following is the recommended method for making
braze connections at the refrigerant line connections:

1. Clean refrigerant tube end with emery cloth or steel

brush.

2. Use a suitable brazing alloy for copper to copper joints,
3, Insert tubing into swage fitting connection,

4. Apply heat absorbing paste or heat sink product to pre-
vent damage to the service valve,

CAUTION

Do not heat valve body above 250 degrees F.

5, Braze joint.

6. Quench the joint and tubing with water using a wet rag.

Leave rag on fitting body and re-wet with water to help cool
area.

Evacuating, And Charging Instructions

NOTE

Intentional release of CFC or HCFC Refrigerant to the
Atmosphere violates Federal Law. It may also violate
State and Local Codes. Check all Federal, State and

Local Codes before proceeding.

These instructions are intended for use with condensing
units that are precharged at the factory with adequate re-
frigerant to handle 25 feet.

NOTE: Do not use any portion of the charge for purging or
leak testing. Itis mandatory that a thorough evacuation of
the refrigerant in the piping and evaporator be performed.

The liquid line and suction line service valves have been
closed after final testing at the factory. Do not disturb

these valves until the lines have been leak checked
and evacuated or the charge in the unit may be lost.

LIJ

I Split System Condensers Installation Instructions

Recommended Method Of Evacuating A
System

1. Connect the vacuum pump to the suction and liquid line

gauge ports.

The service valve cap is a primary seal for the valve and
must be properly tightened to prevent leaks. Make sure cap

is clean and apply refrigerant oil to threads and sealing sur-
face of cap.

2. If the evacuation is being performed on a new system
installation, the valves should be kept in the "front seated"
(closed) position. This will allow the mechanic to evacuate

the refrigeration lines and the indoor coil, without disturbing
the factory charge in the outdoor unit.

For valves with retaining rings: Replace service valve

cap and torque to; 8-11 ft. Ibs. on 1/4" and 3/8" valves,

12-16 ft. Ibs. on 5/8" and 3/4", 15-21 ft. Ibs on 7/8" valves. If

torque wrench is not available, tighten cap finger tight and
then tighten one (1) additional wrench flat or 1/6 of a turn.

3. Follow the vacuum pump manufacturer's instructions.

Allow the pump to operate until the system has been eva-
cuated down to 300 microns. Allow the pump to continue

running for an additional 15 minutes. Turn offthe pump and
leave the connections secured to the two service valves.

After 5 minutes, if the system fails to hold 500 microns or

less, check all connections for tight fit and repeat the evac-
uation procedure.

4. Isolate the vacuum pump from the system by closing the

shutoff valves on the gauge bar. Disconnect the vacuum

pump.

Valve Actuation: Service Valves

For valves with rolled tops: Replace service valve cap

tighten cap finger tight and then tighten one (1) additional
wrench flat or 1/6 of a turn to properly seat the sealing sur-
faces. Subsequent installations will seat with 1/2 to 1
wrench flat of turning.

Gauge Ports: All Valves

Check for leaks at the schrader port and tighten valve core
if necessary. Install plastic caps finger tight.

Remove the service valve cap, if there is a male valve stem

see instructions for Ball Valves. For the standard service
valve there are two variations, but both have internal
stems. The first style uses an internal snap ring to retain the

valve stem and the second has a rolled top and also has
finer threads on the valve cap. NOTE: You may encounter

more than one type of valve on a unit.
For service valves fully insert a hex wrench into the stem. A

back-up wrench is required on the valve body to open the

valve stem. Backout counterclockwise until the valve stem
stops or just touches the retaining ring. NOTE: THIS IS

NOT A BACKSEATING VALVE, For valves with retainer
rings care must be taken to prevent dislodging them when

opening valve.

Electrical Wiring

Ball Valves

On models with ball type valves use a 6" crescent wrench
to rotate the valve stem 90° counter clockwise. Retighten
valve cap to 6-8 ft. Ibs. If torque wrench is not available,
tighten cap finger tight and then tighten one (1/2) additional

wrench flat.

REFRIGERATION PIPING & CHARGING

For extended piping over the recommended 75 feet please

refer to Extended Length Refrigerant Piping Manual (Part #

42106111400).

Permanently ground unit in accordance with the National

Electrical Shock Hazard.

Shut off electric power at fuse box or service pan-

el before making any electrical connections.

Failure to shut off electric power can result in,
property damage, personal injury and/or death.

The supply voltage should be 208-230 volts (196 volt mini-

mum to 253 volts maximum) 60Hz single phase.

APPROVED FOR USE WITH COPPER CONDUCTORS

ONLY. DO NOT USE ALUMINUM WIRE,
REFER TO UNIT RATING PLATE FOR CIRCUIT

PROTECTION.

Grounding

Electrical Code and local codes or ordinances. Use a cop-

per conductor of the correct size from the grounding termi-
nal in control box to a grounded connection in the service
panel or a properly driven and electrically grounded ground

rod.

Wiring Connections

Make all outdoor electrical supply (Line Voltage) connec-
tions with raintight conduit and fittings. Most codes require
a disconnect switch outdoors within sight of the unit.

Route Line Voltage wiring through entrance and through
hole in the bottom of the Control Box to connect to Contac-

tor and Ground Lug.

Route Low Voltage wiring through entrance ONLY and
make ALL low voltage connections to the low voltage pig-
tails in the area below the Control Box. (Two Yellow wires,
AC or W,Y,O,BL, & R for HP). The pigtail wires have 600V
insulation meeting approval for use in high voltage areas.

_ Installation Instructions Split System Condensers I

See Figures 5 thru 8 and Wiring Diagram on unit.

Use of Rigid Metal Conduit

It is recommended that wires be tied together or twisted to-
gether inside the conduit. This will minimize any buzzing
type sounds that could be produced with high current

loads, such as during starting. Under some conditions it

may be necessary to use a hard start kit to eliminate prob-

lem noises.

Figure5

A/C Control Box

Contactor

Ground Lug

Wires

(Low Voltag e)

Line Voltage
Entrance

Low Voltage
Entrance

Control Box Access

Remove the four screws. Cover is notched so it will slide
out from under top edge of unit.

Figure 6 Heat Pump Control Box

Figure 7|'" " A/C Condenser Typical Low

I Voltage Connections

Indoor
Thermostat

R G BL

! I I

(Compressor

W

!

(Co

Outdoor

Unit

:ontactor)

_. Y--

INDOOR

BLOWER
COIL

GAS

OR FURNACE

Defrost

Control

Contactor

Ground Lug

Line Voltage
Entrance

Low Voltage
Entrance

Pigtail Wires
(Low Voltage)

I Split System Condensers Installation Instructions I

Figure 8

Heat Pump Typical Low Voltage Control Connections

ELECTRIC HEAT

NO OUTDOOR THERMOSTAT

Indoor

Thermostat

C

--©

White Rogers 1F92 only,
field jumper required

Y1-Wl.

NOTE: White Rogers 1F92

thermostat cannot be used
for direct staging of electric

heat. Outdoor thermostat

must be used for staging.

\

\__

I

INDOOR ACCESSORY
BLOWER ELECTRIC

COIL HEAT PKG.

t

Outdoor
Unit

-0-- O -- (Heat/Cool Relay)

-0-- Y D (Compressor)

-O-- W-- (Electric Heat)

-O-- BLD (Common 24V)

-O-- R_ (24V-Hot)

• SPLICE (WIRE NUT OR SOLDER AND TAPE)
(1) FIRST STAGE ELECTRIC HEAT ALL HEATERS

(2) ADDITIONAL STAGES, ELECTRIC HEAT STAGE 2 = BK,
STAGE 3 = V, STAGE 4 = BR

If electric heat is not used, discard connection shown from electric heat package.

Start-Up Procedure

Start-up Procedure

1. Close electrical disconnects to energize system,

2. Energize crankcase heater on units so equipped,
3, Set Thermostat selector switch to OFF,

4. Set room thermostat at desired temperature. Be sure
setpoint is below indoor ambient temperature for cooling
and above indoor ambient for heating.

5. Set the system switch of the thermostat on COOL and
fan switch for continuous operation or AUTO, as desired.

Operate unit for 15-20 minutes, then check the system re-

frigerant charge if it was necessary to adjust.

6. After the refrigerant charge has been adjusted, the sys-
tem is now ready for continuous operation.

Final Refrigeration Charge Adjustment

Before any adjustment is made to the refrigerant charge, it
is imperative that the air flow characteristics of the indoor

blower be established.

When checking indoor air flow, it is important to remember
that the blower will deliver a higher quantity of air across a
dry coil versus awet coil. Blower charts are calculated with

a dry coil.

Recommended air flow for installations of cooling units and
heat pumps is 350-450 CFM per ton (12,000 BTUH)
through a wet coil. Refer to indoor unit installation instruc-
tions for proper methods of determining air flow and blower
performance.

To Check System Refrigerant Charge

(Superheat Method), Cooling Only

NOTE: On units with two speed fan control the fan will be

on low speed if the temperature is below 83 ° F. Pull one of
the yellow low voltage wires off the fan control and the unit
will default to high speed fan for servicing. Reconnect wire
after checking.

1. Attach an accurate temperature sensing device to the
suction line approximately 4" - 6" away from the suction
line service valve. The temperature sensing device should
be clamped securely to the suction line, on a horizontal
plane (between 9 & 3 O'clock) and insulated. Record the
suction line temperature.

_ Installation Instructions Split System Condensers I

2. Measure and record the suction line refrigeration pres-
sure. (Measure at the suction line service valve gauge

port.) Using Temperature / Pressure Chart convert this

pressure to the saturation refrigerant temperature. The dif-
ference between actual and saturated temperatures is the
amount of superheat.

Figure 9

Temper
ature °F.

-6

-4

-2
0
1

2
3
4
5
6

7
8
9

10
11

12
13

14
15
16
17
18

- Temperature / Pressure Chart

PSIG Temper PSIG Temper
R-22 ature °F. R-22 ature °F.

19,3 19 41,9 41
20,8 20 43,0 42
22,4 21 44,1 43
24,0 22 45.3 44
24,8 23 46,4 45

25.6 24 47,6 46
26,4 25 48,8 47
27,3 26 49,9 48
28,2 27 51,2 49
29,1 28 52,4 50

30,0 29 53,6 55
30,9 30 54.9 60
31,8 31 56,2 65
32,8 32 57,5 70

33,7 33 58,8 75
34,7 34 60,1 80

35.7 35 61,5 85
36,7 36 62,8 90

37,7 37 64,2 95
38,7 38 65,6 100
39,8 39 67,1 105

40.8 40 68.5 110

115

PSIG
R-22

70.0

71.4

73.0

74.5

76.0

77.6

79.2

80.8
82,4
84,0

92,6

101.6

111.2
121,4

132,2
143,6
155,7

168,4
181,8
195,9

210.8
226,4

242.7

3. Measure and record the outside ambient air tempera-
ture.

4. Optimum performance will be achieved when the oper-
ating charge produces 15°-20 ° F suction superheat at
compressor with 82° F outdoor ambient and 80° Fdry bulb

(67° F wet bulb) indoor temperature (ARI "B" test condi-
tions) at rated airflow. If these conditions cannot be ob-
tained, compare the calculated superheat value with the

recommended valves given in Figure 13,

Figure 10 - Recommended Superheat Values

Outside Air Superheat °F

Temp ° F Variator or Piston

65
75
85

95

1O5

38 -45
27 - 33
20 - 25

10 - 15

2-6

Ifthe actual superheat readings are higher than shown, the

system is most likely under-charged, and charge should

be added. Add charge in 4 ounce increments, and recalcu-
late superheat values. Continue adjusting charge until the

actual superheat approximately matches the recom-

mended values.

'IZ2J

If the actual superheat readings are lower than shown, the

system is most likely over-charged, and charge should be
removed. Remove charge in 4 to 6 ounce increments, and

recalculate superheat values. Continue adjusting charge
until the actual superheat approximately matches the rec-

ommended values.

NOTE: Each time that charge is added or removed from
the system, allow the system to run approximately 15 min-
utes before pressure and temperature readings are taken
and superheat calculations made.

NOTE: Indoor Wet Bulb Temperature ( and Relative Hu-
midity) will alter superheat values. All readings should be
at 50% humidity inside and 350 to 450 CFM per ton across

the indoor coil.

Heating Checkout (Heat Pump Only)

1. Turn thermostat heat-cool switch to OFF. Turn ther-
mostat fan switch to AUTO.

2. Turn on all power except 230 volt line to outdoor sec-
tion.

3. Turn fan switch on thermostat to ON. Blower should

run. Reset to AUTO; blower should turn off.

4. Set thermostat below room temperature. Turn selec-
tor switch to heat. Move thermostat above room tem-

perature. Blower should run on heating speed and a

click should be heard in the condensing unit outside

(contactor closing). The sequencer coils for auxiliary
heat should be energized. After approximately 30

seconds the contacts in the sequencers should close
and the electric heat elements start heating. Allow 3

minutes for all heaters to come on.

5. Set system switch to OFF. Turn the thermostat above

room temperature. Turn on the 230 volt power to the

outdoor unit. Nothing apparent will be happening, but
the crankcase heater is now energized. If the outdoor

temperature is below 75 °F allow the unit to stay in
this mode at least 6 hours. This is needed to vaporize

any refrigerant that may be in the compressor oil.

6. Set the thermostat above room temperature. Move
system switch to heat. Count to 5 (about 5 seconds).

Turn the electric power off at the condensing unit dis-
connect switch. Check that there is no clattering or

unusual noises. The outdoor fan blade should have

started turning and a humming noise should have

been heard from the compressor. The indoor fan

should continue to run at its normal speed and elec-
tric elements continue to heat.

7. Wait 2 minutes, then repeat the procedure and re-
check the same things in case you missed something

during the first power application.

8. With the unit operating, close all doors, windows,
storm windows, and openings to the house. Set the

thermostat to the desired setting. Set outdoor ther-

mostat (if installed) to balance point of house. If tem-

perature of house is at least two degrees below
thermostat setting, heat pump and auxiliary heat not
controlled by outdoor thermostats will continue to run

until room temperature is approximately 2° below
thermostat set point. Auxiliary heat light should go
out and auxiliary heat cycle off. Heat pump should

continue to run until thermostat reaches set point.

I Split System Condensers Installation Instructions

To Check System Refrigerant Charge

(Heating Mode)

The recommended method of addition or removal of
charge in the heating mode is by weight. The system op-

eration may be checked against the performance charts.

Remember, indoor airflow must be approximately 400
CFM per ton to compare operation to performance charts.

Defrost System (Heat Pump Only)

Time / Temperature Type:
The defrost system is electronic with an adjustable time in-
terval of 90, 60, or 30 minutes, It is factory set at 60 or 90

minutes. At the selected time interval with the outdoor coil

temperature at approximately 28°F, the system will defrost.
When the sensor sees the correct rise in the outdoor coil

temperature or after approximately 10 minutes, the defrost
will be terminated.

In some areas, with high humidity, the time interval or tem-

perature termination may require adjustment for complete
removal of ice from the coil. For best economy, always set

to the longest interval or lowest temperature that will keep
the coil clear of ice.

NOTE: The term ice means hard but not frost. During nor-
mal operation, the coils may become coated with frost until
they are solid white. The time interval for the defrost should
be set so the frost and ice melt off completely without hard

ice building up on the coil.

Defrost Control

Time Interval Adjustment

(Except Demand Defrost)

Demand Type:

The defrost frequency is demand based on the coil reach-

ing atemperature of 35 °F for a minimum of 34 minutes and

a maximum of 6 hours of run time. The actual time interval
will vary depending on the outdoor temperature which the

control is also sensing. This can not be adjusted, but the
defrost termination temperature can be. Factory setting is
50°F for termination or after approximately 14 minutes, the
defrost will beterminated. Temperature can be set higher if

all the ice is not melting off the coil.

To adjust defrost frequency, turn off all power to the Heat

Pump. Remove control box cover and locate the electronic
defrost control board.

The defrost control board has a jumper clip that fits over
two pins. To change the time interval, remove the jumper
clip and place it on pins for the desired time interval, 30, 60

or 90 minutes.

U JJ

_ Installation Instructions Split System Condensers I

Temperature Adjustment

(Demand Defrost)

Turn off all power to the Heat Pump. Remove control box
cover and locate the electronic defrost control board.

3, Never use a weather cover over the outdoor unit un-

less it is aventilated type or made of breathable fabric

that will allow moisture to evaporate rapidly. A cover
that holds moisture in the unit will cause more rust

build-up and damage than normal exposure to

weather.

The defrost control board has a jumper clip that fits over
two pins. To change the temperature termination, remove
the jumper clip and place it on pins for the desired interval of
50, 60, 70 or 90 degrees.

Functional Check (Demand Defrost)

Toforce a defrost cycle place the jumper on the TEST pins.
This will cause an accelerated test defrost cycle at 240
times the normal speed (14 min. = 3.5 secs). Reversing
valve will energize, condenser fan stop and electric heat

should come on. This will verify the switching functions of
the board.

Maintenance

Electrical Shock Hazard.

Shut off electric power at fuse box or service pan-

el before making any electrical connections.

Failure to shut off electric power can result in,
property damage, personal injury and/or death.

Figure 1i [

Jum

Adjusting Defrost Time -
Time Temperature Type

Condensate Drain

During the cooling season check at least monthly for free

flow of drainage and clean if necessary.

Cleanliness

These tips will help you keep your air conditioner looking

better and working more efficiently:

1.

2,

Free air flow is essential. Keep the outdoor coil clean

and free of restrictions. Keep fences, shrubs, snow
drifts and any other obstructions at least two feet from

all coil air inlets.

Keep the coil free of grass clippings, weeds and other

debris. BE SURE TO TURN OFF ELECTRICITY BE-

FORE CLEANING!

Coils may require cleaning. The coil should al-

ways be cold when cleaning. Use an alkaline

based cleaner only. Cleaning a hot coil or using

an acid based cleaner will remove the paint from
the fins and may clog the coil.

Figuie!2 [ Adjusting Defrost-Demand Type

Jumper

I Split System Condensers Installation Instructions

SHIPPING BRACKET

A shipping bracket has been added to some chassis to increase the stacking height for im-

proved warehousing.

If present the bracket may be left in place or removed by the installer.
NOTE: The bracket is installed using the same screw(s) that secure the service valve. If only

one screw is used there is a clearance hole that fits over one screw securing the suction valve.
If bracket is removed. MAKE SURE SCREW(S) IS REINSTALLED.