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						To system
or			1		2	or
mixing tank				3		mixing tank
		Boiler	Boiler
From system		3				From system
or	2	1				or
mixing tank						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.		To system
		or
		mixing tank
Boiler
	3	From system
1	2	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:

Standard: Supply mounted 160°F/72°C Return mounted 140°F/60°C Return mounted 113°F/45°C

3

A/2

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.	Danfoss Inc.
7941 Corporate Drive	6711 Mississauga Road · Suite 410
Baltimore, MD USA 21236	Mississauga, ON, L5N 2W3 Canada
Telephone: (433) 512 - 0266	Telephone: (905) 285 - 2050
Fax: (443) 512 - 0270	Fax: (905) 285 - 2055
E-mail: [e-mail]	E-mail: [e-mail]
www.na.heating.danfoss.com	www.na.heating.danfoss.com