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5
System Set Up
5.1 DIP Switch Functions
The DIP switch number is printed on the circuit board next to the relevant switch-
es. The word ON is printed on the circuit board and on the DIP switch block itself.
To move the switch you will need to use a pin or the corner of a thin metal ruler or
similar.
DIP switch settings are listed below in Table 5.1.1.
Only an authorised installer can change DIP switch setting under one's own re-
sponsibility according to the installation condition.
Make sure to turn off both indoor unit and outdoor unit power supplies before
changing the switch settings.
DIP switch
Function
SW1 SW1-1 Boiler
SW1-2 Heat pump maximum outlet water temperature
SW1-3 DHW tank
SW1-4 Immersion heater
SW1-5 Booster heater
SW1-6 Booster heater function
SW1-7 Outdoor unit type
SW1-8 Wireless remote controller
SW2 SW2-1 Room thermostat1 input (IN1) logic change
SW2-2 Flow switch1 input (IN2) logic change
SW2-3 Booster heater capacity restriction
SW2-4 Cooling mode function
Automatic switch to backup heat source operation
SW2-5
(When outdoor unit stops by error)
SW2-6 Mixing tank
SW2-7 2-zone temperature control
SW2-8 Flow sensor
SW3 SW3-1 Room thermostat 2 (IN6) input logic change
SW3-2 Flow switch 2 and 3 input logic change
SW3-3
SW3-4 Electric energy meter
SW3-5 Heating mode function *3
SW3-6 2-zone valve ON/OFF control
SW3-7 Heat exchanger for DHW
SW3-8 Heat meter
SW4 SW4-1 Multiple outdoor units control
SW4-2 Position of multiple outdoor units control *7
SW4-3
SW4-4 Indoor unit only operation (during installation work) *4
SW4-5 Emergency mode (Heater only operation)
SW4-6 Emergency mode (Boiler operation)
SW5 SW5-1
SW5-2 Advanced auto adaptation
SW5-3
SW5-4
SW5-5
SW5-6
SW5-7
SW5-8
SW6 SW6-1
SW6-2
SW6-3 Pressure sensor
SW6-4 Analog output
SW6-5
Notes:
*1. When the hydrobox is connected with a PUMY-P outdoor unit of which maximum outlet water temperature is 55ºC, DIP SW1-2 must be changed to OFF.
*2. OUT11 will be available. For safety reasons, this function is not available for certain errors. (In that case, system operation must be stopped and only
the water circulation pump keeps running.)
*3 This switch functions only when the hydrobox is connected with a PUHZ-FRP outdoor unit. When another type of outdoor unit is connected, the
heating mode function is active regardless of the fact that this switch is ON or OFF.
*4. Space heating and DHW can be operated only in indoor unit, like an electric heater. (Refer to "5.4 Indoor unit only operation". )
*5. If emergency mode is no longer required, return the switch to OFF position.
*6. Active only when SW3-6 is set to OFF.
*7. Active only when SW4-1 is set to ON.
WITHOUT Boiler
55ºC
WITHOUT DHW tank
WITHOUT Immersion heater
WITHOUT Booster heater
For heating only
Split type
WITHOUT Wireless remote controller WITH Wireless remote controller
Zone1 operation stop at thermostat short Zone1 operation stop at thermostat open OFF
Failure detection at short
Inactive
Inactive
Inactive
WITHOUT Mixing tank
Inactive
WITHOUT Flow sensor
Zone2 operation stop at thermostat short Zone2 operation stop at thermostat open OFF
Failure detection at short
—
WITHOUT Electric energy meter
Inactive
Inactive
Coil in tank
WITHOUT Heat meter
Inactive
Slave
—
Inactive
Normal
Normal
—
Inactive
E*SC-*M**D
E*SD-*M**D
E*SE-*M*ED
EHPX-*M**D
—
—
—
Inactive
Inactive
—
OFF
WITH Boiler
60ºC
WITH DHW tank
WITH Immersion heater
WITH Booster heater
For heating and DHW
Packaged type
Failure detection at open
Active
Active
Active *2
WITH Mixing tank
Active *6
WITH Flow sensor
Failure detection at open
—
WITH Electric energy meter
Active
Active
External plate HEX
WITH Heat meter
Active
Master
—
Active
Emergency mode (Heater only operation) OFF *5
Emergency mode (Boiler operation)
—
Active
Capacity code
SW5-3
SW5-4
SW5-5
SW5-6
ON
ON
ON
ON
ON
OFF
OFF
ON
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
—
—
—
Active
Active
—
<Table 5.1.1>
SW5
SW4
SW3
SW2
SW1
SW6
<Figure 5.1.1>
Default settings:
ON
Indoor unit model
OFF
ON *1
OFF
OFF
OFF: E***-MED
ON : E***-*M2/6/9*D
OFF: E***-MED
ON : E***-*M2/6/9*D
OFF: Except EHPX-*M**D
ON : EHPX-*M**D
OFF
OFF
OFF: Except E***-VM2D
ON : E***-VM2D
OFF: Except ERS*-*M**D
ON : ERS*-*M**D
OFF
OFF
OFF
ON
OFF
—
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
—
OFF
OFF
OFF *5
—
OFF
ON
SW5-7
OFF
OFF
ON
OFF
—
OFF
—
OFF
—
OFF
OFF: Except E*SD-*M**D
ON:E*SD-*M**D
OFF
—
OFF
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