ACCESSORY INSTALLATIONS
42
Hydronic Transformer
Description
The hydronic transformer kit must be installed into a stan-
dard PTAC chassis to make the chassis operate electri-
cally with the HWK03 and HVK03 hydronic kits. This kit is
not required on hydronic chassis (model number ending with
"HA")
.
Do not use this kit with heat pump chassis - consult
your Amana
®
brand sales representative for information.
HIGH VOLTAGE
D
ISCONNECT
ALL
POWER
BEFORE
SERVICING
OR
INSTALLING
THIS
KIT
.
M
ULTIPLE
POWER
SOURCES
MAY
BE
PRESENT
.
F
AILURE
TO
DO
SO
MAY
CAUSE
PROPERTY
DAMAGE
,
PERSONAL
INJURY
OR
DEATH
.
1. Remove front by rotating bottom outward and then lifting
up and out from chassis.
2. To gain access inside the control panel, after removing
the knobs and escutcheon, remove the two screws hold-
ing panel in position. Tilt control panel forward, being
careful not to pinch any wires.
Remove Two Screws
To Gain Access Inside
Control Panel (One On
Each Side Of Panel)
6"
3. Lift the control panel up so the control panel is free of its
hinges. Orient the control panel so there is easy ac-
cess for mounting components to the control panel.
4. Using the two #8 screws that are provided, screw the
transformer to the control panel in the transformer mount-
ing holes provided in the panel.
5. Mount the relay in one of the three pairs of relay mount-
ing holes in the control panel making sure that the
threaded stud is in the smaller hole and the metal tab is
in the larger hole. Screw the provided nut onto the
threaded stud from the opposite side of the control panel.
Transformer
Mounting Holes
Relay Mounting
Holes
Transformer
Mounting Holes
Cross
Knockout
6. Remove the cross shaped knockout from the control
panel. Insert the female wire connector into the cross
shaped hole from the side of the control panel where the
transformer and relay are mounted.
NOTE: If the cross knockout is not located in the control
panel, disconnect the terminals of the wire harness from
the relay and transformer. Route the wires through the
power cord opening in the basepan until about 6 to 8
inches of the harness protrudes from the opening. Re-
connect the harness wire terminals to the relay and
transformer as follows:
Wire YL12 to Relay 1 terminal
Wires BU20, BU22 to Relay 3 terminal
Wire RD20 to Relay 5 terminal
Wire BK25 to one Transformer 24V terminal
Wire BK23 to other Transformer 24V terminal
7. (1)
If the unit has an electric heater
, remove the BR34
and BR35 heater wires from the control board and push
these wires through the mid partition panel so that the
wires will not be loose in the control panel area.
(2)
If the unit has a 2 stage electric heater
, discon-
nect the BR34, BR35, VT20, VT19, VT17, and VT18
heater wires from the control board. Remove the heater
relay and wires from chassis and discard . Push the
heater wires (BR34, BR35, and BR36) through the mid
partition panel so the wires will not be loose in the con-
trol panel area.
Содержание R-22
Страница 5: ...ACCESSORY INSTALLATIONS 5 ...
