Mitsubishi Electric i-BX, Technical Manual

Page: 47 / 72

TM_i-BX(-N)_NC05_00_06_20_EN
MEHITS S.p.A. ● TECHNICAL MANUAL Version NC05 - Translation of the Original Instructions
47
4.12.2 INTEGRATION HEAT SOURCE
Refer to the “ Integration heater ” paragraph, replacing the heater parameters as follows:
010G → 010H
0303
→
0306
0304 → 0307
0305
→
0308
0616 → 0618
0617
→
0619
Exceptions:
a) the regulation hysteresis only consists of the value set in parameter
0507 (parameter 0309 is not considered);
b) the alternative heat source is never used for the DHW load.
As for
“ Integration heater ”, also for the alternative heat source the calculation of the integral time only starts after the time set in the “Boiler switc hing
on inhibition time” parameter has elapsed (if other than 0); the function of this last parameter is to inhibit the switching on of the alternative heat source
in integration mode, in order to give time to the heat pump to reach normal operation regime (for example in case of switching on when the system
water is cold).
As for “ Integration heater ”, also for the alternative heat source, if the integral time of the switching on of the heater is 0619 = 0, step regulation takes
place on the regulation setpoint and on the hysteresis value 0507 .
As for “ Integration heater ”, in case of inhibition of the heat pump the alternative heat source will work as a backup.
With the heat source active, the unit pump stays off.
For the default values of the various parameters, see the parameters table.