Mode Switch - Amana R-22 Service Instructions Manual

ACCESSORY INSTALLATIONS
1. Remove the PTAC cabinet front to expose the control
panel area.
IMPORTANT NOTE: Disconnect power to the unit and/or
turn the Master Switch on the control board to OFF when
connecting or altering wiring to any terminal - failure to do so
may result in shorting the fuse or damaging the control board.
2. Remove the terminal strip cover by removing the screw
securing it to the control panel cover.
3. Set the Remote/Standard switch to the STANDARD
position.
4. Connect the two sensor wires running from the RC and
RS terminals on the PTAC Remote Thermostat terminal
strip to terminals 2 and 3 on the remote temperature
sensor base as shown.
5. Wire the sensor using standard 20 gage thermostat wire
(shielded, twisted pair wiring not required) with a maxi-
mum wire length of 50 ft.
NOTE: Shorting the thermostat wires to ground will cause
control board failure.
6. Replace the terminal strip cover and reinstall the cabi-
net front.
7. When power is reestablished to the unit, the remote
temperature sensor will automatically be activated. The
mode switch must be in the OFF position before electri-
cal power is applied to the unit. If the mode switch is
not in the OFF position when electrical power is applied
to the unit, the random restart feature will activate caus-
ing a two to four minute start-up delay.

Mode Switch

Thermostat
Terminal Strip
Control Panel
2 6 5V 2 3 0V L IN E 1 H E A T E R H E A T E R LIN E 2
R E M O TE T H E R M O S TA T
A U X IL IA R Y
E H IN L S F D 1 FD 2 TF1 T F2 C R G L W 2 Y /W 1
O N / O FF
M A S T E R C R G W2 Y\W1 B RS FD
S W IT C H
F U S E
RC
RS
Wiring Schematic for Remote Temperature
Sensor
Cover
C O M P F A N H IG H F A N L O W R -V A LV E
O U T D O O R
C O IL
IN D O O R
C O IL
IN D O O R
A IR
8
B G H
O N / A U T O
R M T /S TD C
F A N
T H E R M O S TA T B
C YC LE A
C O N T R O L
A LL O FF D
Remote/Standard
Thermostat
Control Switch
(Remote ←, Standard →)
Remote
Sensor
2 3
47