R-410A
INSTALLATION MANUAL
®
OUTDOOR SPLIT-SYSTEM
HEAT PUMP
MODELS:
CHJD FLEX SERIES
LIST OF SECTIONS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
LIST OF FIGURES
Typical Installation with Required Clearances . . . . . . . . . . . . . . . . . . . 2
Minimum Suction Line Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Excess Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Insulation of Vapor Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Typical Quick Connect Refrigerant Line Set . . . . . . . . . . . . . . . . . . . .4
Quick Connect Coupling Connections . . . . . . . . . . . . . . . . . . . . . . . . . 4
LIST OF TABLES
TEST Input Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
X/L Output Categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
SECTION I: GENERAL
These outdoor heat pump units are designed to be connected to a
matching UPG indoor coil. They are equipped with a solid core filterdrier located in the discharge line and a high pressure switch.
These units are supplied with quick-connect coupling connections that
are factory charged with refrigerant to be matched with the appropriate
pre-charged line set, and UPG indoor coil.
The outdoor unit is designed to be placed near the perimeter of the
home, typically alongside or at the back of the home, remote from the
indoor coil. The outdoor unit has been factory run-tested and all components of the system are ready for easy, immediate installation.
SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
INSTRUCTING THE OWNER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Outdoor Unit Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical Wiring with Thermostat and Furnace / Air Handler . . . . . . . . 5
Demand Defrost Control Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Defrost Operation Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Heat Pump Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Defrost Initiate Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Improper installation may create a condition where the operation of
the product could cause personal injury or property damage.
Improper installation, adjustment, alteration, service, or maintenance
can cause injury or property damage. Refer to this manual for assistance or for additional information, consult a qualified contractor,
installer, or service agency.
SECTION II: SAFETY
This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury
CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property damage.
.
.
This product must be installed in strict compliance with the enclosed
installation instructions and any applicable local, state, and national
codes including, but not limited to building, electrical, and mechanical
codes.
INSPECTION
As soon as a unit is received, it should be inspected for possib le damage during transit. If damage is evident, the extent of the damage
should be noted on the carrier’s delivery receipt. A separate request for
inspection by the carrier’s agent should be made in writing. See Local
Distributor for more information.
LIMITATIONS
The unit should be installed in accordance with all National, State, and
Local Safety Codes and the limitations listed below:
1. Limitations for the indoor unit, coil, and appropriate accessories
must also be observed.
2. The outdoor unit must not be installed with any duct work in the air
stream. The outdoor fan is the propeller type and is not designed to
operate against any additional external static pressure.
3. The maximum and minimum conditions for operation must be
observed to assure a system that will give maximum performance
with minimum service.
689103-BIM-B-1012
689103-BIM-B-1012
NOTICE
60" OVERHEAD
CLEARANCE
NOTE: ALL OUTDOOR WIRING
MUST BE WEATHERPROOF
TO INDOOR COIL
THERMOSTAT
TO FURNACE OR
AIR HANDLER
TERMINAL BLOCK
MINIMUM 18" SERVICE ACCESS
CLEARANCE ON ONE SIDE
WEATHERPROOF
DISCONNECT
SWITCH
SEAL OPENING(S) WITH
PERMAGUM OR EQUIVALENT
6" CLEARANCE
COIL AREA
NEC CLASS 1 WIRING
NEC CLASS 2 WIRING
NOTICE
NOTICE
AIR TEMPERATURE AT
OUTDOOR COIL, °F
Min. Max. Min. Max.
DB
Cool
50 -10 115 75 57
1. Operation below this temperature is permissible for a short period of time,
2. The maximum allowable line length for this product is 75 feet.
DB
HeatDBCool
during morning warm-up.
DB
Heat
AIR TEMPERATURE AT
INDOOR COIL, °F
WB
Cool
DB
Heat
50
1
WB
Cool
72 80
DB
Heat
SECTION III: UNIT INSTALLATION
LOCATION
Before starting the installation, select and check the suitability of the
location for both the indoor and outdoor unit. Observe all limitations and
clearance requirements.
The outdoor unit must have sufficient clearance for air entrance to the
condenser coil, for air discharge, and for service access. See Figure 1.
For multiple unit installations, units must be spaced a minimum of 18
inches apart (coil face to coil face).
If the unit is to be installed on a hot sun exposed roof or a black-topped
ground area, the unit should be raised sufficiently above the roof or
ground to avoid taking the accumulated layer of hot air into the outdoor
unit.
Provide an adequate structural support.
FIGURE 1: Typical Installation with Required Clearances
GROUND INSTALLATION
The unit may be installed at ground level on a solid base that will not
shift or settle, causing strain on the refrigerant lines and possible leaks.
Maintain the clearances shown in Figure 1 and install the unit in a level
position.
Normal operating sound levels may be objectionable if the unit is placed
directly under windows of certain rooms (bedrooms, study, etc.).
Condensate will drain from beneath the coil of the outdoor unit during
the defrost cycle. Normally this condensate may be allowed to drain
directly on the ground.
Elevate the unit sufficiently to prevent any blockage of the air entrances
by snow in areas where there will be snow accumulation. Check the
local weather bureau for the expected snow accumulation in your area.
Isolate the unit from rain gutters to avoid any possible wash out of the
foundation.
The outdoor unit should not be installed in an area where mud or ice
could cause personal injury. Remember that condensate will drip
from the unit coil during heat and defrost cycles and that this condensate will freeze when the temperature of the outdoor air is below
32°F.
UNIT PLACEMENT
1. Provide a base in the pre-determined location.
2. Remove the shipping carton and inspect for possible damage.
3. Compressor tie-down bolts should remain tightened.
4. Position the unit on the base provided.
Heat pumps will defrost periodically resulting in water drainage. The
unit should not be located where water drainage may freeze and create a hazardous condition - such as sidewalks and steps.
LIQUID LINE FILTER-DRIER
The heat pumps have a solid core bi-flow filter/drier located on the liquid
line.
Replacements for the liquid line drier must be exactly the same as
marked on the original factory drier. See Source 1 for O.E.M.
replacement driers.
2 Johnson Controls Unitary Products
Failure to do so or using a substitute drier or a granular type may
12“
12“
Center Point
NOTICE
result in damage to the equipment.
689103-BIM-B-1012
Filter-Drier
Source 1 Part No.
S1-52636219000 All
*As listed on the “Energy Guide yellow sticker on the unit.
Apply with Models
OUTDOOR THERMOSTATS
(All installations of this heat pump in Manufactured Homes built
per HUD standards SHALL have an outdoor thermostat installed at
the time of installation by the installer. In accordance with HUD
std. 3280.714 (a) (1) (ii). Outdoor thermostat, Part number 30246881/D or equivalent shall be used and should be ordered at your
nearest UPG Parts Source). See last page of these instructions.
Select the proper location for mounting the outdoor thermostat (see
instructions packed with outdoor thermostat).
INDOOR UNITS
Install the indoor coil in the furnace or air handler according to the
installation instructions packed with each component.
REFRIGERANT LINE
Do not remove protective caps from couplings until pre-charged lines
are routed and ready for final connection. Protective caps prevent dirt
from entering couplings and contaminating system when connected
together.
1. Refer to the tabular data sheet for the correct line set kit part number for your unit.
a. Check the size of the pre-charged refrigerant lines to insure that
they are correct for the model being installed.
b. Check the final routing of the tubing, and insure tubing will be of
adequate length, with allowance for connection at the coil and
outdoor unit.
The line set part number, size, and length are shown in the tabular data
sheet. Do not use any line sets other than those shown. Refer to the
appropriate line set Installation Manual.
2. Copper tubing will work-harden (for copper tubing only).
a. The pre-charged tubing should be handled carefully.
b. Do not bend or work the tubing any more than necessary. (The
larger size tubing 3/4" for example, will work-harden rapidly as it
is formed. As the tubing becomes harder, it is more susceptible to
kinking and damage).
3. Forming Copper (for copper tubing only).
a. No attempt should be made to bend the suction line in a shorter
radius than 12". See Figure 2.
FIGURE 2: Minimum Suction Line Form
4. How to dispose of excess tubing.
a. Tubing may be longer than required. Coil excess tubing nearer
the indoor coil rather than the outdoor unit.
b. Excess tubing must be coiled horizontally so the flow of refriger-
ant is from top to bottom of the coil and toward the outdoor unit.
Another method is to form a horizontal “U” large enough to take
care of excess. See Figure 3.
FIGURE 3: Excess Tubing
5. Slope tubing toward outdoor unit.
a. When the coil is above the outdoor unit, the suction line should be
sloped with a fall of a least 1/4" per foot toward the outdoor unit.
b. When the outdoor unit is above the coil, the tubing should be
sloped downward along lateral distance to the bottom, or from the
vertical riser.
6. Insulation of suction line.
a. Standard suction lines come pre-insulated from the factory with 3/
8" closed cell insulation, adequate for average installations.
In regions of extreme temperatures and humidity, additional insulation may be required to prevent excessive condensation and serious
loss of capacity.
b. Do not insulate liquid and suction lines together.
c. Liquid lines should not be insulated.
d. Liquid lines should not be in bare contact with suction line. See
Figure 4.
Johnson Controls Unitary Products 3
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