Danfoss ESBE TV Series Manuale utente

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 reach-

es 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 open-

ing 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

Gravity/Large Volume Hot Water Systems:

For installations involving large volumes of water, the following piping is recom-

mended. 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

To system

mixing tank

Boiler Boiler

To system

mixing tank

From system

mixing tank

From system

mixing tank

2 1

1 2

A/2

2 1

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: [email protected]

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: [email protected]

www.na.heating.danfoss.com

the system.

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

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)

Boiler

From system

mixing tank

To system

mixing tank

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