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1. Safety Guidelines
1. Follow the installation instructions.
2. Use the appliance
• according to its intended use
• in good condition
• with due regard to safety and risk of danger.
3. Note that the appliance is exclusively for use in the
applications detailed in these installation instruc-
tions. Any other use will not be considered to comply
with requirements and would invalidate the warran-
ty.
4. Please take note that any assembly, commission-
ing, servicing and adjustment work may only be car-
ried out by authorized persons.
5. Immediately rectify any malfunctions which may in-
fluence safety.
2. Functional description
TM 200 thermostatic mixing valves provide control of
the water temperature for centralised control on hot
water supply units or for localised control adjacent to
point-of-use outlets. Or for solar-heated hot water units
with dual energy source in heating systems with under-
floor heating or for limiting boiler return temperatures.
a) As a mixing valve for hot water supply systems and
heating systems:
The highly sensitive thermal element located in the
outlet of the valve controls a plug which regulates the
flow proportions of cold and hot water in relation to the
mixed hot water setting selected. Soft seatings are fit-
ted to both hot and cold water inlets.
They provide:
• A positive hot inlet shutoff if the cold water supply is
interrupted, provided that the hot water inlet tempe-
rature is at least 10 K higher than that of the mixed
water setting.
• The cold water supply is cut off if the hot water sup-
ply is interrupted.
b) As a diverter valve on central heating systems:
For this application flow through the valve is in the re-
verse direction compared with its use as a hot water
mixing valve. The inlet water passes around the sen-
sing element and regulates the control piston so that
for temperatures above the set value the water is retur-
ned to the heating circuit and for temperatures lower
than the set value the water is diverted to the boiler.
A protective cap is supplied with the valve to lock the
mixed temperature setting.
MU1H-1306GE23 R0808
GB
3. Application
Medium
Operating pressure
Maximum pressure difference bet-
ween hot and cold inlet supplies
4. Technical data
Installation position
Hot water inlet temperature
Connection size
Setting range
Flow rate at 1.0 bar pressure diffe-
rential across valve approximately
Control accuracy
5. Scope of delivery
The thermostatic mixing valve comprises:
• Housing
• Threaded or soldered union connectors
• Adjuster knob
• Protective cap for locking the set mixed temperature
• Thermostat
6. Options
TM200-3/4A = With R
TM200-3/4B = With ∅ 22 mm soldered connections
7. Assembly
7.1 Installations Guidelines
• Install so that the valve is not strained or twisted
• Fit a return flow-retarder unit where the hot water
supply system includes a circulation circuit
• Observe the flow direction arrow when fitting a
KB191 return flow-retarder unit
• To prevent the growth of legionella, DVGW-W551
specify that the water volume in the pipework bet-
ween the mixer valve and the furthest take-off point
should not exceed 3 litres. This corresponds to a
maximum length of 10 metres for
work and 17 metres for
4
Water
Max. 10 bar
2.5 bar
As required
Max. 90 °C
" or ∅ 22
R
/
3
4
30 °C...60 °C
Set during manuf-
acture 40 °C
27 l/min
< ± 4 K
/
" threaded male connections
3
4
/
" (20 mm) pipe-
3
4
/
" (15 mm)
1
2
Honeywell GmbH
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