57
ACCESSORIES INSTALLATION
ENGLISH
How to Wire 2nd Circuit
Follow below procedures Step 1 ~ Step 2.
Step 1. Uncover front cover of the unit.
Step 2. Find terminal block and connect wire as below
(L)
(N)
(L1)
(L2)
(N1)
MIX
PUMP
MIXING VALVE
L
N
L1
L2
13
14
15
16
N
17
MIX
PUMP
MIXING VALVE
(L) : Live signal from PCB to mix pump
(N) : Neutral signal from PCB to mix pump
(L1) : Live signal (for Normal* Closed type) from PCB to
mixing valve
(L2) : Live signal (for Normal Open type) from PCB to mixing
valve
(N1) : Neutral signal from PCB to mixing valve
*Closed = NOT Mixed
CN_MIX_OUT
Indoor PCB
Floor heating loop
Mix
2
nd
circuit temp. sensor
Mix Kit
[Room B] Additional zone (High Temp.)
[Room A] Main zone (Low Temp.)
Floor heating loop
Radiator
Radiator
Buffer
Tank
Step 3. Insert the temperature sensor to 'CN_MIX_OUT' (Brown) of the main PCB as shown
below. The sensor should be mounted correctly to outlet pipe of mix kit water pump as
shown below.
h
The terminal block connection number may differ depending on the model. Refer to the
“Wiring Diagram” in the SVC Manual.
Содержание Therma V HM091MRS
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