DANFOSS VFG 2 User Manual [ru]
Installation Guide
AFP/VFG 2(21) DN 15-250
ENGLISH
DANSK
DEUTSCH
SVENSKA
FRANCAIS
ČESKY
SPANISH
SUOMI
POLSKI
ROMÂNĂ
MAGYAR
Differential Pressure Controller AFP/VFG 2(21) www.danfoss.com Page 6
Differenstrykregulator AFP/VFG2 (21) www.danfoss.dk Side 7
Differenzdruckregler AFP / VFG 2 (21) www.danfoss.de Seite 8
Differenstrycksregulator AFP VFG2 (21) www.danfoss.se Page 9
Régulateur de pression différentielle AFP / VFG 2 (21) www.danfoss.fr Page 10
Regulátoru diferenčního tlaku AFP / VFG 2 (21) www.danfoss.cz Page 11
Controlador de presión diferencial AFP / VFG 2 (21) www.danfoss.es Page 12
Paine-erosäädin AFP / VFG 2(21) www.danfoss.fi Sivu 13
Regulator różnicy ciśnień AFP / VFG 2(21)
Regulator de presiune diferenţială AFP/VFG 2(21) www.danfoss.ro Page 15
Nyomáskülönbség-szabályozó AFP / VFG 2 (21) www.danfoss.hu Page 16
www.danfoss.pl Page 14
РУССКИЙ
District Energy VI.CA.K2.1I DEN-SMT/SI
Регулятор перепада давления AFP/VFG 2 (21) www.danfoss.ru Page 17
1
Installation Guide AFP/VFG 2(21) DN 15-250
DN 15-125
t
= 150 °C
max
VFG 2 (21)
AFP
DN 150-250
t
= 140 °C
max
DN 15-125
t
max
❶ ❷
= 200 °C
V1, V2
VFG 2
AFP
DN 150-250
t
= 200 °C
max
2×
①
②
❸
AF (2×)
*)
AF (2×)
*)
①
② ②
①
District Energy VI.CA.K2.1I DEN-SMT/SI
22
Installation Guide AFP/VFG 2(21) DN 15-250
❹
❼
②
①
①
③
❺
❻
①
③
①
②
②
G ⁄
①
AF
❽
❾
②
①
②
①
②
③
⑤
④
District Energy VI.CA.K2.1I DEN-SMT/SI
33
Installation Guide AFP/VFG 2(21) DN 15-250
❿
①
⓬
②
⓫
VFG 2(21)
DN
15 130 212 7
20 150 238 9
25 16 0 238 10
32 180 240 13
40 200 240 17
50 230 275 22
65 290 275 33
80 310 380 41
100 350 380 60
125 400 380 79
150 480 326 85
200 600 354 145
250 730 404 228
L B Weight
mm (kg)
⓭
⊕
①
①
②
VFG 2 t
= 200 °C
max
DN
150 630 480 14 0
200 855 600 210
250 120 5 730 300
AFP A H Weight
(mm2) mm (kg)
80 17 2 430 7, 5
250 263 470 13
630 380 580 28
B
L Weight
1
mm (kg)
4
DEN-SMT/SI VI.CA.K2.1I District Energy
Installation Guide AFP/VFG 2(21) DN 15-250
⓮
②
⑤
⓯
∆ps = 0,5-3 bar
∆p
%050
②
⑥
④
①
③
①
④
⑤
36 mm
⑥
xam
V
③
⑦
District Energy VI.CA.K2.1I DEN-SMT/SI
55
Installation Guide AFP/VFG 2(21) DN 15-250
LANGUAGEENGLISH
Safety Notes
Prior to assembly and commissioning to
avoid injury of persons and damages of
the devices, it is absolutely necessary to
carefully read and observe these instructions.
Necessary assembly, start-up, and maintenance
work must be performed only by qualified,
trained and authorized personnel.
Prior to assembly and maintenance work on the
controller, the system must be:
- depressurized,
- cooled down,
- emptied and
- cleaned.
Please comply with the instructions of the
system manufacturer or system operator.
Disposal instructions
This product should be
dismantled and its components
sorted, if possible, in various
groups before re cycling or
disposal.
Always follow the local disposal regulations.
Definition of Application
The controller is used for diffe rential pressure
control of water and water glycol mixtures for
heating, district heating and cooling systems.
The technical data on the ra ting plates
determine the use.
Scope of Delivery ❶
*) Impulse tube AF, accessory
Assembly
Admissible Installation Positions ❷
DN 15-80 ①:
medium temperatures up to 120 °C:
Can be installed in any positi on.
DN 100-250 and DN 15-80 ②:
medium temperatures > 120 °C.
Installation permitted only in horizontal
pipelines with the actuator oriented
downwards.
Installation Location and Installation
Scheme ❸
Return mounting ①
Flow mounting ②
Valve Installation ❹
1. Install strainer ① before the controller.
2. Rinse system prior to installing the valve.
3. Observe flow direction ② on valve body.
Flanges ③ in the pipeline must b e in
parallel position and sealing surfaces
must be clean and wi thout any damage.
4. Install valve.
5. Tighten screws crosswise in 3 steps up to the
max. torque.
Valve Actuator Installation
Valves DN 150-250
The actuator ste m must be screwed into
the valve stem.
Observe the Installation In structions for the
valves DN 150-250.
Valves DN 15-125 ❺
1. Place actuator at the valve.
2. Align actuator, observe position of impulse
tube connection to the valve ①
3. Tighten union nut ② Torque 100 Nm
Impulse Tube mounting
When installing sea l pots ❻①, please
observe the Installati on Instructions for
the seal pots.
• Whichimpulsetubestouse?
The impulse tube set AF (2×) ❻② can be
used: Order No.: 003G1391
or use the following pipes:
Stainless steel Ø 10×0 ,8
Steel Ø 10×1 DIN 2391
Copper Ø 10×1 DI N 1754
• Connection❼ of impulse tubes ① in the
system
Installation in return flow ②
Installation in supply flow ③
• Connection❽ to the pipeline ①
No connection downwards ② , could be
chocked by dirt.
• ImpulseTubeInstallation(Copper)❾
1. Cut pipe into rectangular sections ① and
deburr.
2. Insert sleeves ② on both sides.
3. Verify the correct position of the cutting
ring ③.
4. Press impulse tube ④ into the threaded
joint up to its stop.
5. Tighten union nut ⑤. Torque 40 Nm
DI N 1745 8,
DIN 2391
Insulation ❿
For medium temperatures up to 100 °C the
pressure actua tor may be insulated ①.
Dimensions ⓫
Flanges: connection dimensi ons acc. to
DIN 2501, seal form C
Dismounting ⓬
Danger
Danger of inju ry by hot water
Valve without actuator is open ①, Seal ② is in
the ac tuator.
Prior to dismounting depres surize system!
Carry out dismounting in re verse order to
mounting.
Leak and Pressure Test ⓭
Pressure must be constantly increased
at the +/ connec tion ①. Never increase
− pressure above + pressure.
Observe max. permitted pressure, see below.
Non-compliance may cause damages at the
actuator or valve.
Max. test pressure [bar] with connected
impulse tu bes
2
AFP cm
bar 25 25 16
In case of higher test pressu res, remove impulse
tubes at the pipelines ①.
Close connections with plugs G ¼ ISO 228.
Observe nominal pressure ② of the valve.
Max. test pres sure is 1,5 × PN
80 250 630
Filling the System, Start-up ⓮
The return flow pressure ① must not
exceed the suppl y flow pressure ②.
Non-compliance may cause damages at the
controller ③.
1. Open shut-off devices ④ that are possibly
available at the impulse tubes.
2. Slowly open valves in the system.
3. Slowly open shut-off devices ⑤ in the
supply flow.
4. Slowly open shut-off devices ⑥ in the return
flow.
Putting out of Operation
1. Slowly close shut-off devices ⑤ in the supply
flow.
2. Slowly close shut-off devices ⑥ in the return
flow.
Differential Pressure Setting ⓯
Set-point range see rating plate ①
1. Start-up of system, see section ⓮.
2. Set flow rate on a motorised valve ③ by
which the differential pressure is controlled,
to about 50 % ②
3. Adjustment
• Observepressureindicators④.
• Turningtotheright⑤ increases the set-
point (stressing the spring)
• Turningtotheleft⑥ redu ces the
set-point (unstressing the spring)
4. The set-point adjuster ⑦ may be sealed.
6
DEN-SMT/SI VI.CA.K2.1I District Energy
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