On / Off Control (1 X No Volt Switched Pair); High / Low Control (2 X No Volt Switched Pairs); Dhw Control (Broag Priority); Temperature Control - REMEHA Quinta 115 Technical Information

8.4.3 On / off control (1 x no volt switched pair)

The heat output modulates between the minimum and the maximum value based on
the set flow temperature, terminal connections 3 and 4.
Set the x value of the boiler control operation parameter (A) to 1.
- If the room thermostat is fitted with an anticipation element, it must be set to 0.11 A.
You must also connect an anticipation resistance of 220 Ω between terminals 3 and
11 on the terminal strip.

8.4.4 High / low control (2 x no volt switched pairs)

The heat output is controlled between part load (16 %, adjustable) and full load, by
means of a two-stage controller, terminal connections 3 and 4 low fire - 5 and 6 high
fire.
Set the x value of the boiler control operation parameter (A) to 2.

8.5 DHW control (Broag priority)

8.5.1 Temperature control

With a Remeha temperature sensor or with a standard (volt free) DHW thermostat
connected to terminals 7 and 8.
If the cable from the boiler sensor or -thermostat exceeds 3 meters, we advise you to
use our EMC-filter (Broag supply).
NOTE: boiler will only provide a setting and read out facility with the sensor option.

8.5.2 Primary flow control

- With a three-way diverting valve - Set the DHW control option (parameter J) to
00/02 - connected to terminals 17 (230 V power open/spring returned) and 18.
- With a DHW pump - Set the DHW control option (parameter J) to 01 -
connected to terminals 17 and 18 (230 V -50Hz, max 1 A). If the DHW pump
requires more than 1 A, terminals can only be used to switch a pump relay.

8.6 System pump

A system pump can be connected to terminals 19 and 20 (230 V - 50 Hz, max. 1 A). If the
system pump requires more than 1 A, terminals can only be used to switch a pump relay.

8.7 Frost protection

The boiler must be installed in a frost-free area to prevent the condensate drain from
freezing. However if the temperature of the CH water in the boiler drops too low, the
integrated boiler protection device is activated as follows:
- At a water temperature below 7°C: the circulation pump is switched on;
- At a water temperature below 3°C: the boiler is switched on;
- When the water temperature is above 10°C: the boiler is switched off and the
circulation pump runs for another 15 minutes.
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