Variable Speed Pump Connections

Fig. 3.   Application Example: Circulation Temperature Control with Variable Speed Pump

Table 7.   Connection of the Macro FNB_ModFan

Inputs

Connections to use the Variable Speed Fan for the Circulation Pump

FanEnable

to be connected to the "CircPumpCmd" of one of the macros "DHA_DHW" or "BOD_HeatExch_DHW"

FanSpeedControl

to be connected to the "CircPumpSpeed" output of this macro

ManSwCmd

999; or use a wall module

PlantMode

4;  keep the default value

Status

to be connected to the pump status, or

0 and parameter ALM-05; also 0 if not used

Alarm

to be connected to the pump alarm

FanBeltIn

to be connected to the pump differential pressure switch, or

0 and parameter ALM-06; also 0 if not used

MaintSw

1; or to be connected to a manual switch

Reset

0