Utica Boilers CuB Series 安装指导

95

278

1      4

120V

60Hz

138

5 6 7 8

3 4

1 2

T

T

GND

+15V

OUT

X1

X2

AUX

X4

X4

X11

X7

X5

X7

X6

X9

L

L

N

N

1

1

10

kOhm

1,8

kOhm

M

138 - Optional Outdoor Sensor

155 - Optional Indirect Tank Sensor

16  Modulating fan

32  Heating circulating pump

42   DHW temperature sensor (see kit)

44  Gas valve

47  Modulation Regulator (24V)

72  Room thermostat (fi eld sourced)

81  Ignition/detection electrode

114  Water pressure switch

138  External probe (not fi tted)

155  Hot water tank temperature probe (fi eld sourced)

278  Double sensor (Safety + Heating)

297  Air pressure transducer

370  Low Water Cutoff (LWCO) - (fi eld sourced)

Important: Before connecting the room thermostat, remove the jumper on terminal block.

370 - Field Source LWCO