Connection And Start-Up; Connection; Start-Up - Nibe UKV 20-220 Installation & Operating Manual

QM31
supply from the
heat source
to sewerage
FL1
QM32
return to the
QM1
heat source
CM2
Fig. 13 Diagram of the UKV 20-220 buff er tank instal-
lation in a closed system.
Description:
CP1 Buff er tank
QM31 Cut-off valve- supply from the heat source
QM32 Cut-off valve - return to the heat source
QM36 ZCut-off valve- heating system supply
QM37 Cut-off valve- return from the heating system
QM1 Drain valve
CM2 Expansion vessel
FL1 Safety valve
INFORMATION
The lower return connections to the heating
source and from the heating system can be
connected in opposite confi guration.
4 Connection and

start-up

Connection

CAUTION
The storage tank connections may not be
made of materials more precious than car-
bon steel due to the increased electrochem-
ical corrosion. This applies to connector
pipes (fi ttings) contacting the tank connector
pipe thread. Preferably, use galvanized con-
nector pipes (fi ttings.)
INFORMATION
We recommend connecting the tank connec-
tor pipes with the system lines by means of
unions to allow disconnection of the tank, if
required.
Buff er tank
UKV 20- 220-1000
After the installation and levelling the tank, follow the
procedure below (for the connector pipe numbers, re-
QM36
fer to Fig. 4, 5, 6, 7, 8, 9 ):
heating system
1. Remove protecting plugs from the connector pipes.
supply
2. Connect the supply line from the heat source (XL8).
3. Connect the return line to the heat source (XL9).
CP1
4. Connect the heating system supply line (XL1).
5. Connect the return line from the heating system
QM37
6. Install the required temperature sensors (UA).
return from the
7. If necessary, connect the electric heating unit to the
heating system
Start-Up
After connecting all components of the C/H system,
do the following:
1. Fill up the C/H system with the heating medium.
2. Check tightness of all connections.
3. After checking for tightness, insulate the pipe-
4. Fill up the C/H system with the heating medium
Filling and venting the buff er tank:
You can fi ll the buff er tank directly from the C/H sys-
tem or through the tank drain valve. Vent the tank
and the C/H system after fi lling them. Vent the unit
through the vent installed in the top head of the tank
(see Fig. 14).
Fig. 14 Venting the buff er tank
After completion of the above steps, the system is
ready for operation. You can use the facility heating
system after starting up the heat source and reaching
the required temperature of the heating medium.
(XL2).
connector pipe (XL35, XL36) in UKV 20-300, UKV
20-500 or (XL35) in UKV 20-220, UKV 20-750,
UKV 20-1000.
lines together with the tank fi ttings thoroughly.
and vent the system.
Chapter 3 |
Chapter 4 |
Installation

Connection and start-up

9