Frico Thermozone AD 200 W Serie Manual De Instrucciones página 24

GB
Water regulation
VR20/25, set of valves
For the facility to isolate the air-curtain from the water
supply pipe-work (should removal of the air-curtain or
heating coil be necessary) a set of valves are required.
An integral thermostat controls the water flow / heat
output.
Use of a bypass valve ensures a small water flow is
maintained, the valve quickly responds to heating requi-
rements as dictated by the thermostat.
The SWR20 is suitable for DN20 (
SWR25 for DN25 (1") pipe-work.
• AV20/25, stop valve
Isolates the unit from the water supply. Consists of a ball
valve which is either open or closed.
• JVF20/25, adjustment valve
Enables adjustment of the water flow to the required
level.
(kv-value for JVF20: 3,5. kv-value for JVF25: 7,0).
• TRV20/25, 3-way regulation valve
Pressure class PN16, maximum pressure 2000kPa
(20Bar),
Max pressure drop:
Kv-value:
AV20/25
BPV10
JVF20/25
SD20
TRV20/25
T10/KRT
° C
230V ~
24
Thermozone AD 200 W
/ ") pipe-work and the
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4
TRV20, 100kPa (1,0Bar)
TRV25, 62kPa (0,62Bar).
TRV20 3,5
TRV25 5,5
• SD20, actuator on/off 230V
A thermostat determines if the two position motorised
valve is open or shut, thereby regulating the supply of
heat to the Thermozone.
A 5 second closing of the valve prevents sudden pres-
sure changes in the pipe system.
The motor is rated at insulation class IP40.
• BPV10, bypass valve
The BPV10 bypass valve ensures a small water flow
is maintained, the valve quickly responds to heating
requirements as dictated by the thermostat even when
the regulation valve (TRV20/25) is closed. To adjust the
valve: close completely and then open it one turn. If the
air curtain is sited at the end of long supply pipe-work
resulting in a low supply pressure, the bypass valve may
be opened even more.
+
TVV20/25, valve + SD20, actuator
This combination allows water flow regulation and hence
heat output to be controlled by a thermostat, but without
the option of manual adjustment or isolation of the water
supply.
The VR20 is suitable for DN20 (
VR25 for DN25 (1") pipe-work.
TVV20/25
SD20
T10/KRT
° C
230V ~
/ ") pipe-work and the
3
4