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GB-5

D

GB

F

NL

I

E

Connecting multiple heaters to a single room 

thermostat

 

Phase reversal will result in a short-circuit.

 

Do not install different phases of a three-phase 
current system at the inputs if the voltage be-
tween the phases exceeds 230 V (+ 10%).

 

Multiple heaters must be wired to the thermostat 
via a relay.

29

K3/1

K3

24 V=/230 V~

230 V~

230 V~

230 V~

30

1. GP

29 30

2. GP

29 30

3. GP

K3/2

K3/3

 

At 24 V DC/AC, multiple heaters can be con-

trolled in parallel.

 

Note the polarity!

230 V~

24 V=/~

1. GP

26 27

25

2. GP

26 27

25

26 27

25

3. GP

 

Do not directly connect the thermostat to mul-
tiple heaters.

 

Do not connect terminals 28, 29 and 30 directly 
to the next heater. A short-circuit can occur due 
to different phases and polarities.

29 30

1. GP

29 30

2. GP

29 30

3. GP

29 30

3. GP

28 29

1. GP

30

28 29

1. GP

30

28 29

1. GP

30

28 29

1. GP

30

Reset, alarm, external fan

 

For external fault signalling, an external 
alarm 

ϑ

 and an

 

external reset button 

ϑ

 

can be connected.

22
23

20
21

19

N L1

31
32

29
30

28

230 V ~

max. 2 A

230 V ~

 6 

 For improved air circulation in the room, an ad-

ditional fan 

ϑ

 can be connected.

24
25
26

22
23

21

N L1

253 V AC

max. 5A

 

In case of a power failure, an emergency power 
supply unit should automatically take over the 
power supply. Emergency power supply units 
with a cardan shaft drive for tractor attachment 
are also suitable.

Adjusting the switch-on delay t

E

 

 

If multiple heaters switch on at the same time, 
there can be a gas and/or power shortage on in-
dividual devices. To avoid this happening, adjust 
the switch-on delay t

E

 using the potentiometer 

in the upper housing section of burner control 
unit BCU.

 

The potentiometer is set to 0 s at the factory.

t

N

t

M

0  

   1

    

20

     30     40    

 50

    6

0

t

E

7

 

We recommend using a switch-on delay t

E

 of 5 

to 10 s between each device.

 

The post-cooling time t

N

 is set to 50 s at the 

factory and the minimum burner on time t

M

 to 

0 s. These values must not be changed.

 

Once the wiring is complete, close the BCU 
again. Ensure that the upper housing section is 
not inclined when being replaced on the lower 
housing section.

9

8

 

To guarantee that the burner control unit com-

plies with enclosure IP 54, make sure that the 
screws are tightly secured after wiring and that 
the cable glands are closed.

 0 

 Switch on the power supply.

  

 Release the gas supply.

Summary of Contents for GP 120

Page 1: ...cal changes are prohibited Only use OEM spare parts Transport On receipt of the product check that the delivery is complete see page 2 Part designations Report any transport damage immediately Storage Store the product in a dry place Ambient tempera ture see page 17 Technical data Changes to edition 11 12 The following chapters have been changed Checking the usage Installation Accessories Technica...

Page 2: ...t the released gas can explode To avoid damage during operation please observe the following Switch off the heater before mixing and purging the slurry Close the slide valves when storing slurry out side The fan for the air supply must not be part of a closed pipe system The space to be heated must be adequately ventilated For mechanical extraction equipment at least 10 m3 h of air per installed c...

Page 3: ...art the ends of the protective cap on the back of the burner control unit until the rivets come undone ON OFF RESET MODE OFF AUTO AUTO 2 Pull the opened edges of the protective cap out fully so that the edges are pulled out from between the burner control unit and the mounting plate 3 Remove the opened protective cap from the burner control unit by pulling it upwards ON OFF RESET MODE OFF AUTO AUT...

Page 4: ... con stantly requires 230 V AC Connecting the room thermostat for Heating and Controlled air flow mode Use a room thermostat with a hysteresis of 1 C It switches on if the room temperature is 1 C less than the set temperature and switches off again once the room temperature is 1 C more than the set temperature Do not directly connect the room thermostat to terminals 1 and 3 5 Connect the terminals...

Page 5: ...oom an ad ditional fan ϑ can be connected 24 25 26 22 23 21 N L1 253VAC max 5A In case of a power failure an emergency power supply unit should automatically take over the power supply Emergency power supply units with a cardan shaft drive for tractor attachment are also suitable Adjusting the switch on delay tE If multiple heaters switch on at the same time there can be a gas and or power shortag...

Page 6: ...ing mode The operating mode can be changed using the MODE selection button The selected operating mode is only activated once the device has been in this position for at least 3 s It is thus possible to scroll through the different operating modes Switching off 4 Switch off the heater Press ON OFF 3 4 5 AUT MODE RESET ON OFF O The LED next to OFF 1 2 3 4 5 AUTO AUT MODE RESET ON OFF O lights up an...

Page 7: ...lay of the flame signal starts when the se lection button is pressed and within 1 s almost simultaneously ON OFF OFF 1 2 3 4 5 AUTO AUT MODE RESET ON OFF O is pressed too LED is constantly lit LED flashes µA 2 3 4 6 8 10 12 14 16 18 20 OFF 1 2 3 4 5 AUTO AUT MODE RESET ON OFF O The flame signal is sufficient when 2 LEDs are constantly lit and the third LED flashes If the flame signal is not suffic...

Page 8: ...ol unit and the gas combina tion control are not equipped with protective caps we recommend cleaning the heater with compressed air or a damp cloth only Equipping the burner control unit BCU and the gas combination control CG with a protective cap allows the devices to be cleaned carefully with a water jet high pressure cleaner during cleaning disinfection of the animal shed To guarantee that the ...

Page 9: ...d trained personnel Repairs to components e g the burner control unit BCU or the combination control CG may only be carried out by the manufacturer Other wise the guarantee will be cancelled Unauthor ized repairs or incorrect electrical connections e g the connection of power to outputs can cause gas valves to open and the burner control unit to become defective In this case fail safe operation ca...

Page 10: ...king properly Clean the ignition electrode and check for correct distance see page 12 Maintenance Check the connection of the ignition cables for damage or moisture The spark plug must be fitted correctly Check the ignition spark optically and acoustically from the fan side during the 4 second ignition time Poor flame signal due to incorrect burner ad justment Readjust gas pressure pG see page 6 A...

Page 11: ...lectrode and if necessary the BCU as well LEDs 1 and 5 flash OFF AUTO AUTO 1 2 3 4 5 Temperature sensor is not functioning correctly Check the temperature sensor connection Temperature sensor is below 20 C Temperature sensor defective Replace the temperature sensor LEDs 3 and 4 flash OFF AUTO AUTO 1 2 3 4 5 The time cycle lock between two starts is too short The BCU ensures there is a pause of 15 ...

Page 12: ...ase observe the following instructions Otherwise injuries or damage to the device may occur and or the function of the device may be impaired The supplier manufacturer cannot accept liability for damage resulting thereof Have the heater cleaned at least once a year by qualified maintenance personnel Have the safety functions checked at least once a year by qualified maintenance personnel see page ...

Page 13: ... electrode insulator Clean the grille and fan using a cloth only 19 18 Clean the vane and plates for the air intake using a cloth only 21 20 22 Clean the interior of the device carefully using air The vane must not be bent 23 Check that the vane switch is functional If the vane is moved a little in the direction of the arrow a quiet click can be heard This means that the switching path is correct ...

Page 14: ...witches because the supply pressure is too low The burner control unit performs a safety shut down the gas valves are disconnected from the electrical power supply The flame goes out The burner control unit BCU displays the fault message Supply pressure too low LED 1 flashes If the burner control unit responds in a different way to that described a fault has occurred see page 9 Assistance in the e...

Page 15: ...o N52600071 Connection kit for propane Rp R R R ø 6 mm R Rp Rp GP 70 GP 95 GP 120 GP 14 GP 40 Pressure reducer manual valve hose length 2 m 2 hose clamps R double nipple for GP 14 GP 40 R Rp reducing fitting for GP 70 GP 120 to connect the gas combination control CG to the gas sup ply Order No N52600025 R 3 8 R ø 15 mm Manual valve and hose DVGW certified length 2 m to connect the gas combination ...

Page 16: ...069 Natural gas nozzle for GP 120 12 x Ø 3 3 9 N50390005 Ignition electrode for GP 95 GP 120 10 N50260213 Ignition cable kit for GP 40 GP 120 complete with plug and cap 11 N50390006 Ionization electrode for GP 95 GP 120 12 N50500080 Ionization cable kit for GP series incl plug and seal 13 N50260101 BCU 300 upper housing section incl electronics Kromschröder THP GW 84636001 14 N50260102 BCU 300 low...

Page 17: ...A 3 2 A Air circulation Controlled air flow 6650 m3 h Heating 8000 m3 h Jet length 50 m Housing length 1450 mm width total 650 m height diameter 532 mm weight 45 kg Declaration of conformity We the manufacturer hereby declare that the prod uct GP complies with the requirements of the listed Directives and Standards Directives 2009 142 EC 2004 108 EC 2006 42 EC 2006 95 EC Standards DIN 3362 EN 298 ...

Page 18: ...ess orders ermaf elster com www ermaf nl Elster Instromet B V Sales Office Postfach 2809 49018 Osnabrück Strohteweg 1 49504 Lotte Büren Germany T 49 541 1214 702 F 49 541 1214 506 Goods return form Name of the operator P O Box Street Postcode and town city Tel E mail Returned by Mr Ms Date Number of returns Heater serial number Power supply V Hz Inlet pressure pu bar Reasons for return Description...

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