Outline Diagram; Hot Water - Nibe VST 20 Montageanweisung

Description
This accessory makes hot water priority possible at large
heat pump outputs (charging power between 15 and
40 kW), e. g. F2300-14 (together with an SMO 10) and
F1345-40. This also requires a hot water accumulator,
for example, NIBE VPA.
Components
(19) 1 Shunt motor
(23) 1 Shuttle valve, radiator/heater
(88) Temperature sensor,
supplied with F1345 (BT6) / SMO 10

Hot water

When there is a hot water requirement, the heat pump
gives this priority and switches to hot water mode with
one or more compressors. Normally the hot water produc-
tion for one or two series connected VPAs can be supplied.
Hot water charging starts when the hot water sensor
(88) has fallen to the set start temperature. The shuttle
valve (23) is fitted so that it switches between the heat-
ing system and the water heater, i.e. when the accumu-
lator/water heater is charged the valve switches over to
the radiators/floor heating system.
Stopping takes place at the set temperature on the hot
water sensor (88). It is important that the right (not too
high) temperature is set as the heat pump can cut out
with an HP alarm.
The water heater is equipped with the requisite safety
equipment.
Pool heating
The shuttle valve is also used to control pool heating.
Technical specifications
IP40
Voltage
KV value
Connection
Max. charging power
Part no.
4
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INSTALLATION INSTRUCTIONS
230 V, ~50 Hz, 6 VA
18.0
DN32 (1 1 / ")
4
40 kW
089 388
manuals search engine
VST 20

Outline diagram

AV Shutoff valve
SF Particle filter
VVG Hot water sensor
VXV Shuttle valve
VVB/ACK Water heater/accumulator
El HWH Electrical hot water heater
KV Cold water
VV Hot water
VB Heat medium
19
2
3
VXV
1
23
VB-fram AV
VB-flow
VB-retur AV SF
VB-return
Givarkabel till Värmepump
Sensor cable to heat pump
(not included)
VST 20
El VVB
VVG
VVB / ACK
88
KV
VV