R2500 Wiring Examples - Peco WavePRO T2500 Installation Manual

R2500 wiring examples

The following are examples of typical wiring confi gurations for the R2500 (see Fig. 5 and
Terminal Designations Overview below). Please contact a service technician if you are
unable to perform the wiring installation.
Conventional Terminal Letters
Common wire from secondary side of
C
system transformer.
Power connected to system transformer.
R
First stage of heat relay/contactor.
W
Second stage of heat relay/contactor.
W2
First stage cool relay/contactor.
Y
Second stage cool relay/contactor.
Y2
Fan relay.
G
Figure 5.
R2500
numbers on
terminal block
correspond
to Terminal
Designations
Overview below.
Terminal
1
2
3
4
5
6
7
8
9
10
11
Note: All heat pump systems that call for emergency heat will have more heat stages
than cool stages. Some systems may have an economizer to help reduce energy use. An
economizer is part of the air handling units (AHU) that enables the system to use outside
air to help control interior zone temperatures.
© COPYRIGHT 2010 PECO, INC. ALL RIGHTS RESERVED. P/N 70161 3220-2216 Rev 0
Terminal Descriptions
Heat Pump Terminal Letters
C
R
Y
Y2
Aux
G
E
11 10 9
Terminal Designations Overview
Heat Pump Systems
C 24VAC 2
R 24VAC 1
Y1 COMP 1
Y2 COMP 2
O/B REV. VALVE
AU AUX HEAT
A ECON
G FAN
Remote probe common
Unused
Remote probe
6
Common wire from secondary side of system
transformer.
Power connected to system transformer.
First stage of compressor contactor.
Second stage of compressor contactor.
Auxiliary heat relay/contactor.
Fan relay.
Emergency heat relay/contactor.
1 2 3 4 5 6 7 8
Conventional Systems
C 24VAC 2
R 24VAC 1
Y1 COOL 1
Y2 COOL 2
W1 HEAT 1
W2 HEAT 2
A ECON
G FAN