Part number 550-100-305/0916
55
AquaBalance
TM
W
ALL
M
OUNT
GAS
-
FIRED
WATER
BOILER
— C
OMBI
Boiler Manual
25
DHW Settings
DHW SETTINGS
1. The DHW SETTINGS menus are for setting control opera-
tion during DHW operation. The settings apply ONLY to
DHW
Zone.
2. If DHW is used, the settings for control operation during
DHW calls for heat are set under the DHW SETTINGS menus
(Figure 66, page 51).
DHW TEMPERATURES
$(7PRIORITY
— The control gives priority to DHW
operation. During DHW call for heat, the
central
heating zone output is disabled.
"/),%23500,9
The control will regulate boiler firing to provide outlet water at
this temperature.
Figure 74
#OMPENSATIONPARALLELOFFSETCURVES
4YPICALLOWTEMPERATURERADIANTAPPLICATION
SUCHASINmOORTUBING
Figure 75
#OMPENSATIONPARALLELOFFSETCURVES
4YPICAL#OPPERlNTUBEBASEBOARDRADIATION
24
Controls and operation
(continued)
Figure 76
$(73%44).'3
MENUSEEBELOWFORSETTING
VALUESANDDESCRIPTIONS
2ATED
Heat
)NPUT
$(7PRODUCTIONRATE
[MBH]
[GPM with
[GPM with
[GPM with
[GPM with
WMB-155C
9.2
5.6
4.0
3.1
Figure 77
DHW curve -
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12
12.5
13
13.5
14
14.5
15
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Freestyle 155 - DHW PRODUCTION
Freestyle 155
Delta T (ºF)
G.P.M.
WMB-155C
WMB-155C
Figure 73
#OMPENSATIONCURVES
68
86
104
122
140
158
176
194
-4
2
8
14
20
26
32
38
44
50
56
62
68
BOILER FL
O
W
TEMPERA
TURE (
°F)
OUTSIDE AIR TEMPERATURE (
°F)
OTC CURVES
1
2
3
4
5
6
7
8
9
10
Starting temperature
