Weil-McLain WM97+ Product Manual page 27

CWH
companion water heater
WM97+ Control settings — Advanced
Figure 21
Default DHW Performance Mode Settings menus (see Figure 19, page 24 for access information)
Parameters
Tank Storage Target —
Upper Sensor Set Point
Tank Diff On
Tank Sensor Diff
Boiler Target —
When Upper Tank Temperature is
lower than:
Tank Storage Diff On
minus
Boiler Diff On
Boiler Diff Off
Minimum DHW WM97+70
Blower Speed —
minimum RPM the
WM97+110
blower can target
during a DHW call
WM97+155
Maximum DHW WM97+70
Blower Speed —
maximum RPM the
WM97+110
blower can target
during a DHW call
WM97+155
Part number 635-500-156/0113
— Product Manual
HIGH NORMAL ECONOMY VACATION
170°F 150°F 135°F
2°F 2°F 2°F
10°F 10°F 10°F
185°F 170°F 150°F
2°F 2°F 2°F
10°F 10°F 10°F
1100 1100 1100
1400 1400 1400
1300 1300 1300
4300 4300 4300
5650 5650 5650
5500 5500 5500
DISABLED/
OFF
50°F None Target temperature to modulate boiler output to.
Boiler will modulate to either BOILER TARGET or
DHW Storage Target.
0°F Call for heat starts if upper tank temperature drops
below:
0°F Call for heat starts if lower tank temperature drops
below:
Tank Storage
100°F Maximum boiler outlet temperature the control
should use for the performance mode.
10°F Boiler restarts burner if there is a demand and boiler
temperature has dropped below:
Boiler Target
10°F Control shuts down the burner if boiler supply water
temperature exceeds:
1100 The adjustment limit for these are linked to the
boiler's absolute min as well as High Altitude.
See WM97+ Boiler manual for instructions to change
1400
blower speed.
1300
4300 The adjustment limit for these are linked to the
boiler's absolute max as well as High Altitude.
See WM97+ Boiler manual for instructions to change
5650
blower speed.
5500
(continued)
Description of Parameter
Tank Storage Diff On
minus
Sensor Diff Diff On
minus minus
Boiler Diff On
minus
Boiler Target Boiler Diff Off
plus
27