Interface Selection ((); Dhw Cut-In Temperature (B); Fan Speed At Dhw Full Load (C); Forced Part Load Time After Start (Htg Only - G) - REMEHA Quinta 45 Technical Information

6.6.6 Interface selection (()

Adjustable 00 or 01, factory default 01
This value sets the control option.
01 for standard 0 -10 Volt external control or rematic
ted).
00 for the Honeywell Chronotherm option.

6.6.7 DHW cut-in temperature (B)

Adjustable from 01 to 20 °C (8 steps, see table 09), factory default 5°C (05).
DHW demand:
With sensor:
- The DHW demand is satisfied when the DHW temperature equals the DHW set
point temp (parameter #) + 5°C.
- The DHW cut-in temperature sets the ∆t below this end point for DHW demand.
Cut-in temperature = DHW set point (55) + 5 - parameter B (5)
i.e. 55 + 5 - 5 = 55°C.
With thermostat or rematic
DHW demand.
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 ∆t 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 18 to 100% output (= 1100 (Quinta 45) / 1200 (Quinta 65) to 5200
rpm), factory default 52 (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.
control: the thermostat or rematic
®
® control:
26
Remeha
Quinta 45/65
®
series of compensators (if fit-
®
control determines the