resideo VK41 Series Manual Download Page 3

EN1R-1020 1004RANE 

 

 

 

 

Ambient temperature 

-15 ... 70°C 

Dimensions 

See fig. 1 and 2. 

Pressure regulation function 

Class B according to EN 88 

Air pressure connection 

Servo pressure regulator has an M5 threaded hole to make 

connection between regulator and appliance. 

Outlet pressure 

Outlet pressure is pressure drop across the main burner 

orifice. 

Outlet pressure range 

0.5 ... 20 mbar 

Maximum inlet pressure 

60 mbar 

Minimum regulation capacity 
- for VK41xxV/VK81xxV: 

0.5 m

3

/h air at 

p=0,5 mbar across main burner orifice at 30 

mbar operating pressure maximum 

0.7 m

3

/h air at 

p=0,5 mbar across main burner orifice at 60 

mbar operating pressure maximum 

- for VK41xxVB/VK81xxVB: 

1.0 m

3

/h air at 

p=0,5 mbar across main burner orifice at 

60 mbar operating pressure maximum 

Minimum operating gas pressure 

15 mbar 

Maximum operating gas pressure 

60 mbar : VK411x / VK811x (Class B+C) 

30 mbar : VK412x / VK812x (Class B+B) 

30 mbar : VK41xxVB / VK81xxVB (Class B+C) 

The P

max 

60 mbar indication on the housing is the maximum 

inlet pressure at which the gas control functions safely. 

Maximum air pressure 

8 mbar without outlet gas pressure (before ignition) 

20 mbar with outlet gas pressure present (after ignition) 

Offset range 

-0.4 mbar ... + 0.2 mbar (with coils sidewards) 
-0.24 mbar ... + 0.36 mbar (with coils on top) 

 

 

Inlet 

End outlet 

Side outlet 

Body length 

(mm) 

Flanged 

Flanged 

-- 

105 

Flanged 

-- 

Flanged 

105 

Internal 

3

/

8

” 

ISO 7-1 

-- 

Flanged 

115 

Internal 

1

/

2

” 

ISO 7-1 

-- 

Flanged 

115 

Internal 

1

/

2

” 

ISO 7-1 

Internal 

1

/

2

” 

ISO 7-1 

-- 

115 

Table 1. Standard valve connection 

 

Inlet 

End outlet 

Side outlet 

Body length 

(mm) 

1

/

2

” 

1

/

2

” 

-- 

135 

1

/

2

” 

Flanged 

-- 

120 

3

/

4

” 

3

/

4

” 

-- 

135 

3

/

4

” 

Flanged 

-- 

120 

3

/

4

” 

-- 

Flanged 

120 

3

/

4

” 

Internal 1

1

/

2

” 

ISO 7-1 

-- 

120 

1

/

2

” 

-- 

Flanged 

120 

Flanged 

1

/

2

” 

-- 

120 

Flanged 

3

/

4

” 

-- 

120 

Table 2. External thread valve connection 

 

Inlet 

End outlet 

Side outlet 

Body 

length 

(mm) 

Flanged 

Quick connect 

120 

Flanged 

Quick connect 

105 

3

/

4

” 

Quick connect 

135 

3

/

4

” 

Quick connect 

120 

Table 3. Quick connect valve connection 

 

Inlet 

End outlet 

Side outlet 

Body length 

(mm) 

Flanged 

Flanged 

-- 

105 

1

/

2

” 

Flanged 

-- 

120 

3

/

4

” 

Flanged 

-- 

120 

Table 4. Throttle valve (VK. ... VE only) connection 

Summary of Contents for VK41 Series

Page 1: ...V B E gas controls perform all the functions required to safely regulate gas flow to the main burner of domestic central heating equipment warm air furnaces back boilers and water heaters Models VK41 0 series line voltage gas control with pilot burner connection two automatic shut off valves and pilot burner connection for direct spark ignition DSI or hot surface ignition HSI applications VK41 5 s...

Page 2: ...e applicable Standard at end outlet M8 x 1 for 4 mm outer diameter tubing M5 x 0 8 3 37 6 mm full thread 94 8 68 3 Side outlet Pressure tab 9 24 34 Cap screw offset adjustment 24 Side outlet optional 84 5 Hole 2 6 mm to connect ignition control Inlet Fig 1 Dimensional drawing standard version Fig 2 Dimensional drawing Quick connect and Throttle versions Pilot outlet M8 x 1 6H for 4 mm tubing 29 Ai...

Page 3: ... indication on the housing is the maximum inlet pressure at which the gas control functions safely Maximum air pressure 8 mbar without outlet gas pressure before ignition 20 mbar with outlet gas pressure present after ignition Offset range 0 4 mbar 0 2 mbar with coils sidewards 0 24 mbar 0 36 mbar with coils on top Inlet End outlet Side outlet Body length mm Flanged Flanged 105 Flanged Flanged 105...

Page 4: ...d with min 6 mm full thread In case of side outlet the three holes for mounting the flange are provided with M5 thread with a minimum of 6 mm full thread Electrical data Coil indication Supply voltage 220 240 Vrac 220 V 50 60 Hz using rectifier 240 V 50 60 Hz using rectifier 110 Vrac 110 V 50 60 Hz using rectifier 24 Vrac 24 V 50 60 Hz using rectifier Electrical connection Molex 1 1 square pin hea...

Page 5: ...o far see table below Otherwise distortion and malfunction could result Pipe size inch Max length of pipe thread mm 3 8 14 1 2 18 6 Apply a moderate amount of good quality thread compound to the pipe or fitting only leaving the two end threads bare If permitted by local safety regulations PTFE tape may be used as an alternative Gas controls for flange connection Insert O ring in the groove of each...

Page 6: ...ling ring connection 1 Fig 10 Pipe dia 15 mm for flat sealing ring connection 23 4 0 15 Fig 11 Pipe end for O ring connection 1 Fig 12 Pipe dia 15 mm for flat sealing ring connection 1 Fig 13 Pipe dia 18 mm for flat sealing ring connection Pilot gas connection at outlet side if applicable Square off the end of tubing and remove burrs Slip compression fitting over 4 mm tubing Insert tubing into aut...

Page 7: ...control seems to operate normally but does not detect flame check for right polarity of power supply line neutral Checking flame current The minimum value should be in accordance with the specified value of the ignition control To check flame current connect a DC micro Ampèremeter between flame sensing wire and flame sensing rod If flame current is insufficient check that flame sensing rod is full...

Page 8: ...on page 2 Apply a screwdriver to turn the screw To decrease the flow turn screw clockwise To increase flow turn screw counter clockwise WARNING Applied torque may not exceed 8 Ncm CHECKOUT After any adjustment check pressure taps and gas connections with an approved leak detection fluid for gas leakage After any adjustment set appliance in operation and observe a complete cycle to ensure that all ...

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