Unit installation

20 21
ENGLISH
Wired room thermostat
Room Thermostat (#1, #2)
Connecting wired room thermostat (On/Off Controller)
1. Connect ‘Wired room thermostat’ with ‘pin #19, 20, 21, 22, 23, 24’ in TB-B.
 If pin#19 & pin#21 get AC230V, control kit operation for Cooling at Zone1
 If pin#19 & pin#22 get AC230V, control kit operation for Heating at Zone1
 If pin#19 & pin#23 get AC230V, control kit operation for Cooling at Zone2
 If pin#19 & pin#24 get AC230V, control kit operation for Heating at Zone2
Maximum Consumption Power
Each port use under 10mA
NOTE
Specification table
Part Specification
Connection pin
#19 : Output Power N (power supplying port for Thermostat)
#20 : Output Power L( power supplying port for Thermostat)
#21~26 : Detecting switched L line
Connection load Connect Room Controller
Output AC 230V (MAX 10mA)
Condition for operation
Pin #21 detects L line, the valve for Zone1 will open & outdoor
unit will operate for cooling mode.
Pin #22 detects L line, the valve for Zone1 will open & outdoor
unit will operate for heating mode.
Pin #23 detects L line, the valve for Zone2 will open & outdoor
unit will operate for cooling mode.
Pin #24 detects L line, the valve for Zone2 will open & outdoor
unit will operate for heating mode.
Wiring works
Example of valve connection
 2 pole (L1, N) type
• L1 port of Valve is connected to #17
• N port of Valve is connected to #15
(If L1, N ports of Valve get power, water can flow to Zone1.)
(If L1, N ports of Valve don`t get power, water can NOT flow to Zone1.)
 3 pole (L, L1, N) type
• L port of Valve is connected to #16
• L1 port of Valve is connected to #17
• N port of Valve is connected to #15
(If L1, N ports of Valve get power, water can flow to Zone1.)
(If L1, N ports of Valve don`t get power, water can NOT flow to Zone1.)
 4 pole (L, L1, /L1
*1)
, N) type
• L port of Valve is connected to #16
• L1 port of Valve is connected to #17
• /L1
*1)
port of Valve is connected to #18
• N port of Valve is connected to #15
(If L1, N port of Valve get power, water can flow to Zone1.)
(If /L1
*1)
, N port of Valve get power, water can NOT flow to Zone1.)
*1) /L1 means opposite side signal of L1.