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Accessories Installation
How to connect the field provided optional thermostat to the Hydro Kit
Follow below procedures Step 1 ~ Step 6.
Step 1. Uncover front cover of the unit and open the control box.
Step 2. Identify the power specification of the thermostat. If it is 1~ 230 V, go to Step 4. Otherwise,
if it is 1~ 24 V, go to step 3.
Step 3. Find thermostat connecting cable A and C. Disconnect cable A and C, then connect cable B and C.
First:
Disconnect
A and C
Step 4. If it is Heating Only Thermostat, go to step 5. Otherwise, if it is Heating / Cooling
Thermostat, go to step 6.
Step 5. Find terminal block and connect wire as below. After connecting, go to step 6.
THERMOSTAT
(Default : 1~ 230 V)
1
2
3
L
N
L1
BR
BL
WH
(L)
(N)
Thermostat
(L) : Live signal from PCB to Thermostat
(N) : Neutral signal from PCB to Thermostat
(H) : Heating signal from Thermostat to PCB
30 Hydro Kit
B
A
Second:
Connect
B and C
C
WARNING :
Mechanical type Thermostat.
Do not connect wire (N) as mechanical type thermostat does not
4
L2
require electric power supply.
BK
(H)
CAUTION:
Do not connect external electric loads.
Wire (L) and (N) should be used only for operation Electric type
thermostat.
Never connect external electric loads such as valves, fan coil units,
etc. If connected, Main PCB Assembly 1 can be seriously damaged.
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