Johnson Controls ZZ Series, Installation Manual

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5834853-YIM-B-0320
Johnson Controls Ducted Systems 5
Installation
Installation Safety Information
Read these instructions before continuing this appliance
installation. This is an outdoor combination heating and cooling
unit. The installer must assure that these instructions are made
available to the consumer and with instructions to retain them
for future reference.
1.
Refer to the unit rating plate for the approved type of gas
for this product.
2. Install this unit only in a location and position as specified
on Page 7 of these instructions.
3. Never test for gas leaks with an open flame. Use
commercially available soap solution made specifically for
the detection of leaks when checking all connections, as
specified on Pages 5, 42, 43 and 69 of these instructions.
4. Always install furnace to operate within the furnace's
intended temperature-rise range with the duct system and
within the allowable external static pressure range, as
specified on the unit name/rating plate, specified in Table 9
of these instructions.
5. This equipment is not to be used for temporary heating of
buildings or structures under construction.
Preceding Installation
1. Remove the two screws that hold the brackets in the fork-
lift slots on the side of the unit.
Figure 1: Unit shipping bracket
2. Turn each bracket toward the ground. The protective
plywood covering drops to the ground.
3. Remove the protective covering from the condenser coil
prior to operation.
Figure 2: Protective condenser covering
4. If a factory option convenience outlet is installed, you must
install the weatherproof outlet cover in the field. The cover
is located behind the filter access panel.
a. Remove the shipping label that covers the convenience
outlet.
b. Follow the instructions on the back of the cover box.
c. Attach the cover to the unit with the four screws
provided.
5. For units equipped with an economizer or motorized OD air
damper, you must move the return air temperature (RAT)
sensor to the working position to ensure proper RAT
readings. See item B in Figure 4.
a. Move the RAT sensor to the inside of the return air duct
verifying that the sensor is at least 6 in. below the unit
duct opening. The sensor must read the return air
temperature not mixed return air and outdoor air
temperatures.
b. Use the excess wire available to its full length to drop or
mount the RAT sensor in the duct.
c. You can use the shipping bracket to hold the RAT
sensor in the return air stream. See Figure 3 for the
factory RAT sensor location and Figure 5 for the sensor
relocation.
FIRE OR EXPLOSION HAZARD
Failure to follow the safety warning exactly could result
in serious injury, death or property damage.
Never test for gas leaks with an open flame. Use a
commercially available soap solution made specifically
for the detection of leaks to check all connections. A fire
or explosion may result causing property damage,
personal injury or loss of life.
A
Bracket screws
B
Bracket
A
B
208/230-3-60 and units with factory installed Powered
Convenience Outlet Option are wired for 230v power
supply. Change tap on transformer for 208-3-60
operation. See unit wiring diagram.