Grundfos MixiMizer Installation And Operation Manual page 12

Boil
Boil
Os / V
Ret / I
Com(-)
Sup
Com
tN4
Dem
Class 2
Only
Dem
5.
Settings
Dip switch settings:
SWITCH ON
A
Permanent
Demand
Max system
B
supply set
at 140
Boiler return
C
minimum set
D Starting Temp.
Heating curve
70°F
No shift
Page 11
Boiler On/Off
Supply
Sensor
Optional Zone
Control Input
Figure 9 - Dip Switches
POSITION
OFF
External
Demand
Max system
supply feature
F is off
o
Boiler return
minimum feature
at 135 F
o
Starting Temp.
Heating Curve 5
Parallel shift 75°F
Fig. 8
Optional
Output
Outside
Temp
Sensor
Return
Sensor
⇑
ON
DEFAULT
ON position
Permanent Demand
ON position
ON position
Max supply set at
supply set at
140°F
140 F
o
ON position
ON position
Boiler minimum
minimum set at
set at 135°F is off 135
F On position
o
No shift
F
o