EDM SYSHP MINI SPLIT 06 16

Table Of Contents
84
6 DIP Switch Sengs
DIP switch S1,S2 is located on the hydraulic module main control board and allows conguraon of addional heang source
thermistor installaon, the second inner backup heater installaon, etc. Refer to Table 3-6.1 and to the Heat Pump Split Service
Manual, Part 4, 2.2 “Main PCB for Hydronic System”.
7 Internal Circulaon Pump
The pump is controlled via a digital low-voltage pulse-width modulaon signal which means that the speed of rotaon depends
on the input signal. The speed changes as a funcon of the input prole. The relaonship between external stac pressure and
water ow rate is described in Part 2, 7 “Hydronic Performance”.
Figure 3-7.1: Internal circulator pump
Table 3-6.1: DIP switch sengs
Switch ON =1 OFF=0 Default factory seng
S1
1/2
0/0=IBH(One-stage control) 0/1=6kW IBH(Two-stage control)
1/1=9kW IBH(Three-stage control)
OFF/OFF
3/4
0/0=Without IBH and AHS
1/0=With IBH
0/1=With AHS for heang mode
1/1=With AHS for heang mode and DHW mode
OFF/OFF
S2
1 Start pumpo aer six hours will be invalid Start pumpo aer six hours will be valid OFF
2 without TBH with TBH OFF
3/4
00=variable speed pum (Max head:8.5m,Grundfos) 01=constant speed pump (WILO)
10= variable speed pump (Max head:10.5m,Grundfos)
11=variable speed pump (Max head:9.0m, WILO)
ON/ON
S4
1 Reserved Reserved OFF
2 Reserved Reserved OFF
3/4 Reserved OFF/OFF