ESIE09-08B Field Setting
Test Operation 105
[E] Service mode
[E-00] Vacuum mode
When recovering/vacuuming of the indoor unit is needed, field setting [E-00] should be
activated. It will force the unit into thermo OFF and will open
the expansion valve of the
indoor unit R-134a circuit so full vacuuming is possible.
By default [E-00] = 0, set to 1 to enable the vacuum mode.
Note : Do not forget to restore the field setting [E-00] to the default value when vacuuming is finished!
When [E-00]=0 is set to 1 (recovery mode), [E-04] can be set to 2 to enhance recovery of the
refrigera
nt.
[E-04] Pump only operation
When commissioning and installing the unit it is very important to get all air out of the water
circuit.
Through this field setting the pump can b
e operated without actual operation of the unit. By
doing so this will enhance
the air removal from the circuit. The pump can operate at different
speed:
[E-04] = 0 normal operation of the unit (default)
[E-04] = 1 low pump speed operation (pump only, unit is not operating)
[E-04] = 2 high pump speed operation (pump only, unit is not operating)
Notes : 1. If you select [E-04]=1 or 2 and [6-00]=1, the unit will activate the domestic ho
t water 3-way
valve. This function is a helpful feature to get all air removed out of the system (as
well in
space heating as in domestic hot water heating).
[E-04]=1 or 2 & [6-00]=0 => Pump operation of 20 minutes. 3-Way valve in space heating
mo
de.
[E-04]=1 or 2 & [6-00]=1 => Pump operation of 10 minutes. 3-Way valve in domestic hot
water h
eating mode.
2. Do not forget to restore the field setting [E-04] to the default value when commissioning is
finished!
3
. When using thermostatic radiator valves, make sure to open all valves during air purging
operation.
First
code
Second
code Setting name
Default
value Range Step Unit
E Service mode
00 Vacuum mode 0 0/1 — —
04 Pump only operation 0 0~2 1 —
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