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TM50SOLAR
TM50/TM200/TM300SOLAR
Thermostatic mixing valve with scald protection
for solar installations
Product specification sheet
Application
Thermostatic mixing valves of this type are used for central regulation of the water temperature in solar-powered, bivalent water
heaters.
A cold water break can be fitted in the circulation line in water
heater systems, which prevents cold water from mixing at the
extraction point via the circulation line.
Special Features
• Highly sensitive thermal element with good all-round watertemperature sensing, even at low flow rates
• Simple setting of the required water temperature
• Scald protection - the hot water inlet is automatically cut off if
TM200SOLAR
the cold supply fails provided that the hot water inlet temperature is at least 10 K higher than that of mixed water setting
• The cold water inlet is automatically cut off if the hot supply
fails
• Meets KTW recommendations for potable water
• Inner components are of scale-resistant materials
TM300SOLAR
Construction
The thermostatic mixing valve comprises:
•Housing
• Connection fittings (not in TM50SOLAR)
• Adjustment knob
•Thermostat
• Protective cap to fix the set mix water temperature (not in
TM50SOLAR)
Materials
• Dezincification resistant brass housing, nickel plated
• Dezincification resistant brass connection fittings, nickel
plated (not in TM50SOLAR)
• Moving parts of high-quality, scale-resistant synthetic
material
• High quality-synthetic material adjustment knob
• Stainless-steel spring
• Protective cap made of transparent plastic (not in
EN0H-1358GE23 R0908 • Subject to change
TM50SOLAR)
Range of Application
Medium Water
Operating pressure Max. 10 bar
Maximum pressure difference between hot and
cold inlet supplies
Technical Data
Installation position Arbitrary
Hot water inlet
temperature
Connection size
Setting range 30 °C - 60 °C
Set at the factory to 40 °C 40 °C 40 °C
Flow rate at 1.0 bar
pressure differential
across valve
approx.
Control accuracy < ± 4 K < ± 4 K < ± 4 K
2,5 bar
TM50SOLAR
1
/2"
25 l/min 27 l/min 40 l/min
TM200SOLAR TM300SOLAR
Max. 110 °C
3
/4"
3
/4"
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TM50/TM200/TM300SOLAR Thermostatic mixing valve with scald protection
Method of Operation
Thermostatic mixing valves of this type are used for central regulation of the water temperature in solar-powered, bivalent water
H
h
H
h
A
A
l
L
TM50SOLAR
A
l
TM300SOLAR
A
A
A
H
h
A
l
L
TM200SOLAR
A
L
heaters.
A
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 fitted 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 temperature is at
least 10 K higher than that of the mixed water setting.
• The cold water supply is cut off if the hot water supply is interrupted.
Options
TM50SOLAR-1/2E = without connection fittings R
TM200SOLAR-3/4A = with threaded union connectors R
TM200SOLAR-3/4E = without connection fittings R
TM300SOLAR-3/4A = with threaded union connectors R
1
/2"
3
/4"
3
/4"
3
/4"
TM50SOLAR-1/2E TM200SOLAR-3/4A TM200SOLAR-3/4E TM300SOLAR-3/4A
Connection size A G
Dimensions (mm)
L
l
h
H
1
/2" R 3/4" G 3/4" R
57
29
37
93
134
67
65
128
66
33
40
93
3
180
90
78
132
/4"
2 www.honeywell.com
EN0H-1358GE23 R0908 • Subject to change
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Installation Example
TM50/TM200/TM300SOLAR Thermostatic mixing valve with scald protection
1/2" max. 17 m
3/4" max. 10 m
RV284
10
5
bar
15
0
16
Installation Guidelines
• 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 between the mixer
valve and the furthest take-off point should not exceed 3
litres. This corresponds to a maximum length of 10 metres for
3
/4" (20 mm) pipework and 17 metres for 1/2" (15 mm)
Typical Applications
Thermostatic mixing valves are installed in water heating systems
according to your specification.
The following are some typical applications:
o Single and multiple-occupancy households
o Retirement homes
o Children's nurseries
o Schools
oHotels
o Commercial kitchens
o For industrial applications with control either from a central
location or adjacent to point-of-use outlets
Maintenance
It is recommended that the mixing valves are inspected on a regular basis, at least annually, or more frequently if performance is
impaired, to ensure they are working correctly and that dirt ingress into the system does not cause a loss in performance of the mixing
valve.
The temperature setting is to be inspected at regular intervals and adjusted as necessary.
EN0H-1358GE23 R0908 • Subject to change
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TM50/TM200/TM300SOLAR Thermostatic mixing valve with scald protection
Spare Parts
TM200SOLAR (exemplary)
1
Thermostatic mixing valve TM50/200/300SOLAR,
from 2008 onwards
1 Control valve, complete
for TM50SOLAR TM50A-30/60
for TM200SOLAR TM200A-30/60
for TM300SOLAR TM300A-30/60
Automation and Control Solutions
Honeywell GmbH
Hardhofweg
D-74821 Mosbach
Phone: (49) 6261 810
Fax: (49) 6261 81309
http://europe.hbc.honeywell.com
www.honeywell.com
Manufactured for and on behalf of the
Environmental and Combustion Controls Division
of Honeywell Technologies Sàrl, Ecublens, Route
du Bois 37, Switzerland by its Authorised Representative Honeywell GmbH
EN0H-1358GE23 R0908
Subject to change without notice
© 2008 Honeywell GmbH
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