A.O. Smith Theta T Series Installation, User And Service Manual page 105

Installation-, User- and Service Manual
TERMINAL STRIP CONNECTIONS:
Earth
N Neutral
L Live input of controller

L Live input for 3-way mixing valve (warm water supply of water heater)
1

L Live input for 3-way mixing valve (return water of plate heat exchanger)
2
L Live input for solar heating system modulating pump (PWM)
3
L Live input for heating pump
5
L Live input for DHW pump
6
L Live output of Switched Live room thermostat
7
PWM + PWM+ signal of solar heating system pump (modulating)
PWM - PWM- signal of solar heating system pump (modulating)
COMPONENTENS:
AA Controller of solar heating system (SHM 3.0)
BB 3-way mixing valve (230 V
CC Heating pump (230 V
DD DHW pump (230 V
EE Temperature sensor (S
FF Room thermostat (24 V
GG Room thermostat (230 V
HH Communication between the water heater controller and the solar heating
system controller
JJ Solar heating system pump (modulating) (230 V
[VAC]
JJ Solar heating system pump (modulating) (PWM-signal)
[PWM]
KK Temperature sensor (S
LL Temperature sensor (S
MM Combined Q/T sensor incl. temperature sensor
- solar collector return) (12 kΩ NTC)
(S
4
K Double-pole isolator
CONTROLLER CONNECTIONS:
J3 Connection of room thermostat (ON/OFF)
J12 Connection combined Q/T sensor (1-2-3-4)
J13 Connection of temperature sensor S
J14 Connection of temperature sensor S
J16 Connection of BUS-link communication
J18 Connection of PWM-signal solar heating system pump
F2 Fuse (T 3,15 A - 250 V)
)
AC
)
AC
)
AC
- heating system)
5
- ON/OFF)
AC
- Switched Live)
AC
-solar collector) (20 kΩ NTC)
1
- tank) (12 kΩ NTC)
2
(1-3) and temperature sensor S
5
(2-4)
2
)
AC
(2-4)
1
105