Fan Speed At Dhw Full Load (C); Forced Part Load Time After Start (Htg Only - G); Dhw Control Stop Set Point (I); Dhw Control Option (J) - REMEHA Quinta 30 Technical Information

Boiler modulation during continuing DHW demand
Sensor, thermostat and rematic
- The boiler will modulate when the flow temp equals the DHW set point + DHW con-
trol stop set point (parameter I) i.e. 55+20 = 75.
- The boiler carries out a control stop at a flow temp of 80°C (modulation point +
5°C), the display initally shows 980, reducing to 975.
- The DHW cut-in temperature sets the Δt below this control stop.
Cut-in temperature = DHW set point (55) + DHW control stop set point (parameter I)
+ 5 - parameter B (5)
i.e. 55 +20 + 5 - 5 = 75

6.6.8 Fan Speed at DHW full load (C)

Adjustable from 20% to 100% output (= 1200 to 5300 rpm), factory default 53 (100%).
This value sets the maximum output of the boiler.
Parameters D - E - and F are factory set and must not be changed

6.6.9 Forced part load time after start (HTG only - G)

Adjustable from 00 - 15 min., factory default 03 (3 minutes).
This value sets the period of time the boiler will stay on part load at start up during
which time the flow temp is limited by part load temp set point (parameter $)
Changing the factory default should only be carried out on advice from the service
engineer.
NOTE: When using an external analog (0 -10V) or 2 wire modulation input, the factory
default 03should be changed to 00.
Parameter H factory set must not be changed

6.6.10 DHW control stop set point (I)

Adjustable from 00 - 30 °C factory default 20°C.
Refer to Par. 6.6.7.

6.6.11 DHW control option (J)

Three options 00 - 01 - 02 factory default 00.
This value sets the DHW control option.
00 Three way diverting valve (port A - HTG and Port B - DHW)
01 DHW pump
02 Inverted three way diverting valve (port B - HTG and Port A - DHW)
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control:
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Remeha Quinta 30
1-4-2009 14:35:51 1-4-2009 14:35:51