Danfoss ESBE THERMIC VALVE TV Installation guide
ESBE THERMIC VALVE TV
INSTALLATION INSTRUCTIONS
The ESBE Thermostatic Bypass valves type TV are designed to allow boilers to
reach their optimum operating temperature quickly and to prevent cool/cold return
temperature from affecting them.
OPERATION/INSTALLATION
Whether installed on the supply or the return, the thermostat within the TV valve
allows flow through the bypass until the predetermined temperature is reached.
Installation on the Supply: When the valves is piped on the supply, the TV will
allow flow of hot water to the system or indirect heater when the boiler outlet reaches 160° F (72° C). At approximately 180° F (82° C) a majority of the flow is directed
to the system. Between 160° F and 170° F, the TV bypasses some supply water to
mix with return water keeping operating temperatures high.
Installation on the Return: When the valve is piped on the return, the TV allows
full bypass until the return temperature reaches 113° F (45° C) or 140° F (60° C)
dependent on the selected valves's return temperature. The TV will begin opening while maintaining a 113° and 140° F minimum return temperature respectively.
When return temperatures reach approximately 131° F (55° C) and 158° F (70° C)
respectively, most of the flow will be through the system.
TYPICAL MOUNTING
TV can be installed in any position. An adjustable balancing valve (or ball valve)
must be installed on the bypass.
Typical return valve mounting Typical supply valve mounting
To system
or
mixing tank
From system
or
mixing tank
1 2
3
Boiler Boiler
3
2 1
To system
or
mixing tank
From system
or
mixing tank
Gravity/Large Volume Hot Water Systems:
For installations involving large volumes of water, the following piping is recommended. The considerable volume of water within the system can create a situation
where cooler return water causes the valve to remain closed. The recommended
piping allows the heat source to handle the returning water while providing heat to
Art.nr. 98140074 Ritn.nr 9114 Utg PB7
the system.
Boiler
To system
or
mixing tank
3
1
2
From system
or
mixing tank
START UP
With the balancing valve on the bypass fully open, operate the boiler until it reaches
it´s normal operating temperature. If hot water does not automatically flow to the
system then adjust (throttle) the bypass balancing valve until flow (hot water) to the
system is established. If flow is already to the system, no adjustment is required.
TECHNICAL DATA
Temperature Ranges:
3
Standard: Supply mounted 160°F/72°C
Return mounted 140°F/60°C
A/2
Return mounted 113°F/45°C
2 1
A
Type Code No. Size Opening temp. A A/2 Cv Weight
461 A 065 B 8920 1" NPT (Female x Female) 160°F/72°C 4.2 2.10 10.5 3.3 lb.
462 A 065 B 8921 1 ¼" NPT (Female x Female) 160°F/72°C 4.5 2.25 16.4 4.4 lb.
463 A 065 B 8922 1 ½" NPT (Female x Female) 160°F/72°C 4.7 2.35 20.0 5.3 lb.
464 A 065 B 8923 1" NPT (Female x Female) 140°F/60°C 4.2 2.10 10.5 3.3 lb.
465 A 065 B 8924 1 ¼" NPT (Female x Female) 140°F/60°C 4.5 2.25 16.4 4.4 lb.
466 A 065 B 8925 1 ½" NPT (Female x Female) 140°F/60°C 4.7 2.35 20.0 5.3 lb
464 AL 065 B 8917 1" NPT (Female x Female) 113°F/45°C 4.2 2.10 10.5 3.3 lb.
465 AL 065 B 8918 1 ¼" NPT (Female x Female) 113°F/45°C 4.5 2.25 16.4 4.4 lb.
466 AL 065 B 8919 1 ½" NPT (Female x Female) 113°F/45°C 4.7 2.35 20.0 5.3 lb
Max operating pressure: 85 psi/6 bar
Max operating temperature: 230°F (110°C)
For technical support or additional product information, contact:
Danfoss Inc.
7941 Corporate Drive
Baltimore, MD USA 21236
Telephone: (433) 512 - 0266
Fax: (443) 512 - 0270
E-mail: heatinginfo@danfoss.com
www.na.heating.danfoss.com
Danfoss Inc.
6711 Mississauga Road · Suite 410
Mississauga, ON, L5N 2W3 Canada
Telephone: (905) 285 - 2050
Fax: (905) 285 - 2055
E-mail: heatinginfo@danfoss.com
www.na.heating.danfoss.com
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