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Form 44201129 

Oct 2019 rev A

  

5.0)

 

GAS SUPPLY 

 

1.

 

Natural Gas - G20 at 20mbar nominal supply pressure (appliance cat 2H) 

 

Maximum supply pressure (Pmax) 25mbar 
Minimum supply pressure (Pmin)   

17mbar 

Setting pressure   

 

 

12.5mbar 

Gas connection   

 

 

R - ½ 

 

2.

 

Installation pipes should be fitted in accordance with National and Local Regulations.  Pipes of a smaller size 
than the heater connection (R - ½) should not be used and the pipework must be designed to achieve a gas 
supply pressure between the maximum and minimum values stated above, measured at the appliance inlet 
pressure test point. 

 

A union service cock MUST be fitted as close as practicable upstream of the heater to enable the gas train to 
be removed for maintenance or repair. 

 

It is essential to provide a flexible metallic hose, which must conform, to national or Local Regulations, to 
connect the appliance to the gas supply.  Minimum size to be ½" (12.7mm) bore. 

 

3.

 

LPG - G30/G31 at 29/37mbar nominal supply pressure (appliance cat. 3+). 
 

 

Maximum supply pressure (Pmax): 

 

G30 - 35mbar 

 

 

 

 

 

 

 

G31 - 45mbar 

 

Minimum supply pressure (Pmin):  

 

G30 - 20mbar 

 

 

 

 

 

 

 

G31 - 25mbar 

 

 

Note:- for appliance cat 3+ the governor is not operational  

 

Gas connections: R - ½ 

 

4.

 

The appliance should be connected to a permanent piped supply of LPG with pipes of adequate size to 
achieve a gas supply pressure between the maximum and minimum valves stated above, measured at the 
appliance inlet pressure test point. 
 

5.

 

The complete installation MUST be tested for soundness in accordance with National or Local Regulations. 

 
 

6.0)

 

ELECTRIC SUPPLY 

 
 

WARNING:  THIS APPLIANCE MUST BE EARTHED 

 

1.

 

The electrical wiring to this heater must be installed in accordance with the latest or current National 
Regulations and any Local Regulations, which apply. 

 

 

Electrical supply   

 

230V~50Hz 25W 

 

Current rating 

 

 

0.55 

 

Fuse externally   

 

3A 

 

Summary of Contents for ADL25-HB

Page 1: ...ICE INSTRUCTIONS ARE INCLUDED IN THE SEPARATE MANUALS SUPPLIED WITH EACH HEATER Models LRU25 HB LRU30 35 40 45 HB LRL25 HB LRL30 35 40 45 HB ADU25 HB ADU30 35 40 45 HB ADL25 HB ADL30 35 40 45 HB Gas F...

Page 2: ...tem Exhaust Manifold 4 5 0 Gas Supply 6 6 0 Electrical Supply 6 7 0 System Ventilation 8 7 1 Flue Size 9 8 0 Damper Assembly Attachment Linear Models 9 8 1 Damper Assembly Attachment U Tube Models 10...

Page 3: ...e that the burner is correct for the gas type in the building 3 0 GENERAL INFORMATION This heater is a self contained infrared radiant tube heater designed for use where flammable gases or vapors are...

Page 4: ...lity of exposure to volatile and low flash point materials exists it could result in property damage or death This heater must not be installed in a spray booth where the heater can operate during the...

Page 5: ...rm with the plan provided 2 For suspending the manifold it is recommended that suitable protected welded chain 3mm x 65links m stainless steel flexible wire or similar and manifold tube hangers be use...

Page 6: ...condensate trap 15mm PVC or galvanised not copper should be U shape with a minimum depth of 250mm and with the outlet connected to a drain Fan Type 1 Fig 5 4 For fan type 3 Part No 4262254 which are...

Page 7: ...to national or Local Regulations to connect the appliance to the gas supply Minimum size to be 12 7mm bore 3 LPG G30 G31 at 29 37mbar nominal supply pressure appliance cat 3 Maximum supply pressure Pm...

Page 8: ...atively connection may be made via a fused 3 pin plug and un switched shuttered socket both complying with the requirements of National or Local Regulations Neither thermostat nor switch are supplied...

Page 9: ...elow the level of the heater s Up to and including 60kW 4 5cm2 kW Over 60kW 270cm2 2 25cm2 kW in excess of 60kW total rated heat input Where the air supply openings can be closed it shall only be poss...

Page 10: ...n the Control Box Air Inlet and any rigid ducting and be secured to the Air Inlet with hose clips The maximum length of ducting should be 15m with a maximum of two 900 bends Where outside combustion a...

Page 11: ...Coupling up to the stop and is positioned with the adjustable slide flange at its lower edge Tighten the nuts of the Torctite Coupling to secure the Damper Assembly to the Radiant Tube taking care to...

Page 12: ...holes 5 5mm through both the tube and fittings one hole to be at 12 o clock to prevent possible leakage of condensate and rivet the tube to the fittings 5 x 6 pop rivets Fig 11 10 0 COMMISSIONING Insp...

Page 13: ...hing on the electricity supply to the system control and setting the time switch and thermostat to demand heat Carry out the procedures at 5 and 6 on each of the appliances in the system 5 Connect a s...

Page 14: ...nt servicing may be desirable IMPORTANT A Do not rest anything especially ladders against the appliance B Gas and Electricity supplies must be isolated before commencing servicing work or replacement...

Page 15: ...fan F Type 3 Fan G Remove the cover from the Exhaust Fan terminal housing and remove the electrical leads H Disconnect the flue from the fan outlet I Slacking the Hose Clips securing the Fan Connecto...

Page 16: ...occurs switch off the electricity supply to the zone or system fan wait for 10 seconds before switching on the electricity supply to the zone or system fan to repeat the ignition sequence It is not po...

Page 17: ...Form 44201129 Oct 2019 rev A NOTES...

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