Danfoss AVT Operating guide [cs]

Operating Guide

TR(TW)700

AVT

ENGLISH

DANSK

DEUTSCH

ESPAÑOL

NEDERLANDS

SLOVENŠČINA

ČESKY

POLSKI

LIETUVIŲ K.

РУССКИЙ

AVT/VG

AVT/VGU

Temperature actuator AVT www.danfoss.com Page 5

Teperaturaktuator AVT www.danfoss.dk Side 6

Thermostat AVT www.danfoss.de Seite 7

Actuador de temperatura AVT www.danfoss.es Page 8

Temperatuurregelaar AVT www.danfoss.nl Blz. 9

Pogon regulatorja temperature AVT www.danfoss.si Str an 10

Pohon přímočinného regulátoru teploty AVT www.danfoss.pl Strana 11

Siłownik termiczny AVT www.danfoss.pl Strona 12

Temperatūros pavara AVT www.danfoss.com Page 13

Термостатический элемент AVT www.danfoss.com Стр. 14

AVT/VGS AVT/VGF

AVT/VGUF

VI.GC.W3.8N | 1

AVT

➊

①

②

③

④

⑤

❷

②

①

③

⑥

④

2 | © Danfoss | 2017.08

⑤

VI.GC.W3.8N

AVT

❸

❹

①

③

⑧

② ③

④

⑤

②

④

DN L (mm)

15 69

20 74

25 79

32 104

40 114

50 134

❺

❽

⑦

① ②

①

◯ ◯

②

❾

⑥

❻ ❼

②

③

①

④

① ③

②

④

⑤

VI.GC.W3.8N

AVT

❿

⓫

AVT ... 170 mm, 210 mm

AVT ... 255 mm

SW d R  L1  L2 L3 k d

15 20 25 32 40 50

32 (G ¾A) 41 (G 1A) 50 (G 1¼A) 63 (G 1¾A) 70 (G 2A) 82 (G 2½A)

21 26 33 42 47 60 ⁄ ⁄ 1 1⁄ - -

130 150 160 - - -

131 144 160 177 - 139 154 159 18 4 204 234

65 75 85 100 110 125 14 14 14 18 18 18

4 4 4 4 4 4

AVT/VG/VGU AVT/VGS AVT/VGF/VGUF

174

SW 17

Ø 9,5

M14×1

DN 15 20 25 32 40 50 L L1 130 150 160 180 200 230 H (VG) 180 180 180 222 222 222 H (VGU) 183 183 183 225 225 225 H (VGS) 257 257 257 - - H1 130 230 230 222 222 222 H2 34 34 37 62 62 62 H3 47 52 57 70 75 82

Ø 12

170

R ½

SW 22

65 70 75 100 110 130

Ø 16

223

SW 22

M22×1

215

SW 27

Ø 19

R ¾

SW 22

Ø 16

266

R ¾

AVT

4 | © Danfoss | 2017.08

AV T 170

Immersion pocket

AVT 210

Immersion pocket

AVT 255

VI.GC.W3.8N

AVT

ENGLISH

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 instruction

This product shou ld be dismantled and its

components sor ted, if possible, in various groups before rec ycling or disposal. Always follow the local d isposal regulations.

Definition of Application

The temperature actuator AVT is, in combination with Danfoss valves and Danfoss controller combinations, used for temperature control of water and water glycol mixtures for heating, district heating and cooling systems. The temperature controllers (temperature actuators with valves) with the temperature actuator AVT are type-tested acc. to EN 14597 and comply with the safety requirements for temperature control and temperature limiting units in heat systems. The technical parameters on the product labels determine the use.

Application examples ➊

Temperature actuator AVT can be combined with:

① VG(F), VGU(F) and VGS valves. ② Combination pieces K2, K3 and valves

mentioned above.

③ Flow and temperature controller AVQT

and Flow and temperature controller with integrated control valve AVQMT.

④ Differential pressure and temperature

controller with flow limitation (and fixed setting) AVPBT(-F).

⑤ Differential pressure, flow and temperature

controller AVPQT.

Assembly

Admissible Installation Positions

Temperature actuator with valves

- In combination with VG(F) or VGU(F) valves:

• Can be installed in any position ①.

- In combination with VGS valves:

• Medium temperatures up to 160 °C: Can be installed in any position ②.

• Medium temperatures > 160 °C: Can be installed horizontal and in

horizontal pipelines with the actuator oriented downwards ③.

Admissible installation positio ns in combination with AVQT, AVQMT,

AVPBT(-F) and AVPQT - see relevant instructions.

❷

Temperature sensor

- The capillary tube may not be twisted or buckled. The minimum bending radius is 50 mm ④.

- The place of installation must be chosen in a way that the temperature of the medium is directly taken without any delay. Avoid overheating of temperature sensor

- The temperature sensor must be immersed into the medium in its full length.

Temperature sensors 170 mm R½” and 210 mm R¾”:

- The temperature sensor may be installed in any position ⑤.

Temperature sensor 255 mm R¾”:

- The temperature sensor must be installed as shown on the picture ⑥.

Installation Location and Installation Scheme

• AVT/valve ①, AVT/AV T/valve ② return

• AVT/valve ③, AVT/AV T/valve ④ flow

➌

mounting

Valve Installation ➍

1. Clean pipeline system prior to assembly.

2. The installation of a strainer in front of the controller is strongly recommended ①.

3. Install temperature indicators in the system part to be controlled.

4. Install valve

• The flow direction indicated on the

product label ② or on the valve ③ must be observed.

• The valve with mounted weld-on

tailpieces may only be spot welded to the pipeline ④.

The weld-on tailpieces may be welded only

without the valve and seals! ⑤⑥

If these instructions are not observed, high

welding temperatures may destroy the seals.

• Flanges ⑦ in the pipeline must be in

parallel position and sealing surfaces must be clean and without any damage. Tighten screws in flanges crosswise in 3 steps up to the maximum torque (50 Nm).

5. Caution:

Mechanical loads of the valve body by the

pipelines are not permitted ⑧.

Mounting of temperature actuator ❺

Before mounting the actuator, carry out Filling the system, First start-up and Leak and pressure tests, see ❽. Place temperature actuator AVT at the valve ② or combination piece ③ and tighten union nut with wrench SW 50. Torque 35 Nm.

Insulation ❻

Do not insulate the temperature actuator and the valve as well.

Start-up ❼

Valves VG, VGF and VGS ① are normally opened (NO) valves.

Filling the system and Leak and pressure test should be done without mounted temperature actuator ② - valve has to be open.

Valves VGU and VGUF ③ are normally closed (NC) valves.

Filling the system and Leak and pressure test should be done with open valve. Temperature actuator ④ could be mounted and set in a way that the valve is open.

Filling the system, first start-up ❽

1. Slowly open shut-off devices in the flow pipeline ①.

2. Slowly open shut-off devices ② in the return pipeline.

Leak and Pressure Tests

Pressure must be gradually incre ased at the +/- side of the valve . Do not test with

closed valve.

Non-compliance may cause damages at the actuator or the valve. A pressure test of the entire system must be carried out in accordance with manufacturer’s instructions. The maximum test pressure for the valves is:

1.5 × PN

PN - see product label!

Putting out of operation

1. Slowly close shut-off devices ① in the flow pipeline.

2. Slowly close shut-off devices ② in the return pipeline.

Settings ❾

Temperature Setting

The temperature setting range is indicated on product label ①.

Pre-conditions:

The system must be opened and the flow of the medium guaranteed.

Procedure:

• Set desired setpoint by turning the setting adjuster ②.

- Turning to the left (counter-clockwise)

increases the setpoint.

- Turning to the right (clockwise) reduces the

setpoint.

• The position of the setpoint adjuster on a scale value ③ means:

1 minimum setpoint 5 maximum setpoint

• Observe temperature indicator ⑤.

• Wait for about 3 to 5 min. until the temperature indicator shows the final value.

• If the device is used as a temperature monitor, the setting adjuster ② must be sealed by a sealing wire ④.

Adjustment diagram ❿

Temperature setting

Relation between scale numbers 1-5 and closing temperature.

The values given are app roximate

Dimensions, Weights ⓫

Conical ext. thread acc. to EN 10226-1

Flanges PN 25, acc. to EN 1092-2

VI.GC.W3.8N

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