5
33-00135EFS—05
Fig. 3. Terminal Designations for Boiler.
M35656A
J
R
C
Y
O/B
T
D
L
S1
S1
TERMINALS FOR 10K OHM TEMPERA
TURE SENSOR. CAN BE USED FOR FREEZE PROTECTION IN THE CASE OF THE THERMOST
A
T
LOSING THE SIGNAL TO THE ERM. SENSOR MUST REMAIN INDOORS TO BE USED FOR FREEZE PROTECTION.
TERMINAL FOR HEA
T CALL.
TERMINALS FOR 24V
AC POWER.
TERMINAL FOR JUMPER. JUMPER BETWEEN J AND R SHOULD BE REMOVED FOR BOILER USE.
TERMINAL DESIGNA
TIONS FOR BOILER
Y2
T
TERMINAL FOR HEA
T CALL.
NOTE:
ER
M
WILL N
O
T S
U
P
POR
T SE
R
IES
2
0
OP
ER
A
T
ION
. W
HEN
CONFIG
UR
ED
AS
A B
O
ILER
, TH
E
Y
R
E
L
A
Y
SH
ALL
B
E
O
F
F
A
T
A
L
L TIM
E
S.
33-00135EFS_C.book Page 5 Monday, May 2, 2016 1:52 PM
Summary of Contents for ERM5220R1018
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