Slant/Fin Victory VSPH series User Manual page 30

30
Thermostatic bypass valves type TV are designed to allow
boilers to reach their optimum operating temperature
quickly and to prevent cool/cold return temperatures from
affecting them.
Operation/Installation: The thermostat within the "TV" valve
allows full flow through the bypass until the predetermined
temperature is reached.
Start Up: With the balancing valve on the bypass fully
open, operate the boiler until it reaches its 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
SIZE
1" NPT (female x female)
1
1 / " NPT (female x female)
4
1
1 / " NPT (female x female)
2
Max. operating pressure 6 bar (85 psi) Maximum operating temperature 110°C (230° F)
The flow factor K v is the number of cubic meters per hour of water at 20°C which will flow through the valve with a pressure drop of 1kg/cm
The flow coefficient (Cv) is the flow of water at 60°CF in US gallons per minute at a pressure drop of 1lb/in
Fixed anticipator thermostats are not adjustable.
Adjustable anticipator thermostats, depending on thermo-
stat model, may be adjustable from a . 18 to a .9 setting by
moving a pointer on the anticipator.
The higher the anticipator setting (towards .9) the longer it
will take for the thermostat to respond to a change in room
temperature. Too high a setting and the boiler will be slow
to respond to a temperature change in the room. This can
cause the room temperature to drop to an uncomfortable
level before the boiler starts. This may generate home-
owner complaints.
APPENDIX B: Thermostatic Bypass Valve
S/F
PART NO. OPEN TEMP .
116040 46 ºC 115 ºF
116041 46 ºC 115 ºF
116042 46 ºC 115 ºF
APPENDIX C: THERMOSTAT HEAT ANTICIPATOR SETTINGS
established. If flow is already to the system, no adjustment
is required.
Return Mounting: On the return "TV" allows full bypass until
the return temperature reaches 46 degrees Celsius (115
degrees Fahrenheit). "TV" will begin opening while main -
taining a 46 degrees Celsius (115 degrees Fahrenheit)
minimum return temperature. When return temperatures
reach approximately 54 degrees Celsius (130 degrees
Fahrenheit) most of the flow will be through the system.
Mounting: "TV" can be installed in any position. An
adjustable balancing valve (or ball valve) must be installed
on the bypass.
A A/2
107 mm 4.2" 53 mm 2.1"
114 mm 4.5" 57 mm 2.25"
119 mm 4.7" 60 mm 2. 35"
2
across the valve.
The lower the anticipator setting (toward .18) the faster the
thermostat will respond to a change in room temperature.
Too low a setting and the boiler will short cycle. Boiler short
cycling will cause unnecessary wear on the equipment
and in the case of oil boilers it can lead to poor combustion
and more frequent cleaning of the combustion area.
It is important to understand what the thermostat is con-
trolling and then determine the amp rating of that relay,
gas valve, zone valve or control. This information is usual-
ly stamped somewhere on the component. A properly set
anticipator will allow the system to operate at its maximum
effectiveness.
VICTORY VSPH Models
Kv Cv WEIGHT
8.96 10.5 1.5 kg
13.99 16.4 2.0 kg
17.23 20.2 2.4 kg
2
(1 bar).
3.3 lb
4.4 lb
5.3 lb