User Guide

ViewStat Installation and Wiring
23
V
iewStat Communicating Thermostat
FIG. 14 Typical heat/cool wiring schematic
RC
RH
Y1
W1
G
O
W2
C
RSC
RSA
RSB
RSR
R
REF
Y2
B-
B+
A+
A-
B
FAN
RELAY
2ND
STAGE
HEAT
1ST
STAGE
HEAT
R
MULTI-STAGE FURNACE
C
G
W1
Y1
W2
Y2
1ST STAGE
COOL
2ND STAGE
COOL
L1 L2
120
VAC
24
VAC
1ST
STG
COOL
2ND
STG
COOL
MULTI-STAGE A/C
Y1
C
Y2
CAUTION!
ENSURE HVAC SYSTEM POWER
IS OFF BEFORE WIRING
USE 18-20 GA. THERMOSTAT CABLE. NUMBER OF CONDUCTORS
REQUIRED DEPENDS ON THE HVAC SYSTEM BEING CONTROLLED
REFER TO THE THERMOSTAT INSTALLATION SHEET FOR
INTERNAL SCHEMATIC, THERMOSTAT CHECK-OUT
PROCEDURES AND OTHER HVAC WIRING DETAILS
(from MiniVerter)
Black
(common)
Red
(power)