Toshiba MMW-AP0481CHQ-E Installation Manual page 26

 Output signal function wiring
Connect the following output signals from the hot water module.
Terminal
Function
block No.
COM DC12V (COM)
S1 Defrosting output (COM-S1)
S2 Line heater output (COM-S2)
S3 -
S4 Heating thermostat ON output (COM-S4)
S5 Pump output (COM-S5)
COM
S1
Hot water module
S2
output signal
function terminal
S3
block (CN60)
S4
S5
NOTE
Auxiliary relays (locally procured) must be connected to output signal function wirings to allow connection to the
hot water module output signal functions. The maximum current output signal, from each of the output signal
function wirings, is 16 mA. Please ensure the rated current of the relay coil is less than 16 mA to avoid damage to
the hot water module P.C. board.
▼ Output function wire
CAUTION
Output signal functions are separated from primary basic insulation.
• To prevent noise trouble, use 2-core shield wire.
• Determine the wire length between the hot water module output signal function terminal block and the relay up
to 2 m.
• Locally procure and install protective devices such as the heater and pump.
49-EN
Comments
Common for connector S2 ~ S5
DC12V
Relay coil is less than 16mA.
DC12V
Relay coil is less than 16mA.
-
DC12V
Relay coil is less than 16mA.
DC12V
Relay coil is less than 16mA.
Relay
Output function wire
External
actuator
Locally procured
– 25 –
 Outside trouble input wiring
• In case of connecting the Relay (procured locally) for outside trouble input, connect a connector with wire
(accessory) to CN703 on I/F P.C. Board (MCC-1628).
• After signal is input, 3 sec. later : Forced thermostat - OFF
1 min. later : Check code "L30" (Hot water module is locked)
(Interlock from outside)
I/F P.C. Board (MCC-1628)
CN703
COM
1 1
Outside trouble input
2 2
3 3
4 4
5 5
6 6
Max. 2 m
Procured locally
* Use the relay for micro-load.
I/F P.C. Board output is 2 to 3 mA.
Relay
Relay coil signal
Connector with wire (accessory)
50-EN