UHA S
TANDARD
U
NIT
H
EATER
I
NSTALLATION
O
PERATION AND
S
ERVICE
M
ANUAL
24 of 59
10.5 Low Voltage Thermostat with Multiple Heaters (Models UHA[X][S]300 - 400)
N
L
Gnd.
L
N
Gnd.
120V-60 Hz
NOTE: If both the heat and fan only operations are to be used, two relays will be required per group of heaters.
supply circuit
Low Voltage Thermostat
R
C
W
G
Y
1
2
3
4
5
6
COIL
COIL
Black
Black
White
Red
Transformer Relay
FRONT VIEW
BACK VIEW
N
L
Gnd.
Heater 2
Heater 1
Purple
Red/Yellow
Model
Relay Type
Relay Part Number
Max. Number of Heaters
UHA[X][S]300 - 400
DPST
90436300
2
Summary of Contents for UHAS 150
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