Transformer Kit
INTRODUCTION
These instructions are primarily intended to assist qualified individuals experienced in the proper installation of this
appliance. Some local codes require licensed installation/service personnel for this type of equipment. Read all
instructions carefully before starting the installation.
This transformer kit is designed for installation in NORDYNE central air conditioner condenser sections. The transformer
provides a 24 VAC/30 VA Class 2 power supply for the air conditioning control circuit. It is intended for use where a
two transformer control circuit is required.
INSTALLATION INSTRUCTIONS
Kit #910910-
INSTALLATION SEQUENCE
CAUTION:
The power supply to the condenser unit must
be off before proceeding with the installation of
this transformer kit.
1. Mount the transformer in the condenser section
control box..
2. Wire the leads per the wiring diagrams provided
below. For units with an anti-short cycle timer, use
Figure 1. For units without an anti-short cycle timer,
use Figure 2.
3. Refer to the installation instructions for low voltage
thermostat control circuit wiring schematic.
Figure 1. Wiring Diagram for Units With an Anti-Short Cycle Timer
T2
T1
T3
CC
CONTACTOR
ANTI-SHORT
CYCLE BOARD
30 VA
TRANSFORMER
L1
L2
NOTE: (1) Thermostat using #911030 Relay Box
Rc (1)
or
R (2)
Y
C
KCALB
BLACK
WOLLEY
RED
RED
KCALB
EGNARO
BLACK
Primary
208/240
24V
Secondary
(2) #901650 Blower Kit
