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TWH – Tankless Water Heater Panels
Installation, Operation, and Maintenance
MIN
MA X 7
1
2
MIX
3-Way Thermostatic Mixing Valve (TMV)
The TMV controls the temperature of the hydronic system via a
self regulating thermostat.
Setting the TMV
The indicator for the valve is located at the base of the knob on
the back. The mixed (desired) temperature is a function of the
TMV setting.
See the below chart to determine the proper setting for you
system. After allowing the system to run for a short period, verify
the setting and adjust if necessary.
Unit
Mixed Fluid Temperature
Min.
1
2
3
4
5
6
7
Max.
°F
81
90
100
111
120
127
136
145
152
°C
27
32
38
44
49
53
58
63
67
Thermometer (76940)
The pipe mounted thermometer reads the supply fl uid
temperature.
Specifi cations:
• Temperature range of 32-210°F (0-100°C).
Indicator
on back
Flow Switch for DHW Priority (FLWSWTCH)
(optional, sold separately)
The electronic fl ow indicator provides DHW priority when the
DHW fl ow rate reaches a factor pre-set level (approx. 0.5 US
gpm). Must be piped in downstream of panel (see schematic on
page 15).
Mounted separately from the panel (see page 15).
