ENGLISH
DHW boost (Default for input 6)
This function allows a request for a one-time heating up of the domestic hot water temperature. The input can be sent by a push
button, a NC contact and a NO contact. This input is switched on terminals 16 and 20 of the TB2.
Common
Line
DHW Boost
input 6
16 20
Power Meter (Default for input 7)
This function is used to monitor real consumption of the system by means an external power meter device connected at this input.
The calculation method is done by measuring real consumption of the whole installation with one power meter device or 2 separate
power meter (one for indoor unit and another one for outdoor unit.
Common
Line
Power M.
input 7
16 21
Aquastat for circuit 1
Aquastat is a security accessory to control in order to prevent high water temperature entering into oor system (Circuit 1). This
devices must be connected to terminals 22 & 23 for circuit 1.
When this devices is activated because of the high temperature of the water, it stops the water pump in order to stop the ow of
water to the heating oor.
22 23
C
Second Aquastat
1
Circuit 1 (for WP)
? NOTE
For R410A models terminals 28 & 29 for circuit 2 are available.
ELECTRICAL AND CONTROL SETTINGS
PMML0575 rev.2 - 03/2022
107
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