Johnson & Starley ELJAN 4/SE Installation, Commissioning & Servicing Instructions

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INSTALLATION, COMMISSIONING & SERVICING INSTRUCTIONS
This appliance is tested and certified by B G Technology for use with natural gas only.
IMPORTANT:
These instructions apply to an ELJAN 4/SE that is either already fitted to a Johnson & Starley
HI-SPEC J25SC or SCS25 MkI air heater, or is to be retro-fitted to either of these appliances.
These instructions are to be read in conjunction with the relevant air heater Installation,
Commissioning and Servicing Instructions.
1.
1.1
ELJAN 4/SE is a gas fired circulator which can generate up to 62.5 litres per hour (13.7 gal/h) of hot water when installed
in a Johnson & Starley HI-SPEC J25SC or SCS25 MkI air heater in SE-duct applications. The appliance is suitable for use
in a fully pumped circuit comprising radiators and/or an INDIRECT cylinder. If the intention is to use ELJAN 4/SE with a
direct cylinder, then the local Water Authority should first be consulted. ELJAN 4/SE may be used in a sealed system
application when fitted with an Overheat Cut-off Device (CK1 kit).
1.2
The gas supply to the main burner is controlled by a multifunctional gas control valve. In addition, an electrically
operated solenoid valve is fitted to permit the main burner to be remotely switched on and off. The main burner operates
in conjunction with a permanent pilot burner and a thermoelectric sensing device. Pilot ignition is by means of a Piezo
unit.
2.
2.1
NATURAL GAS.
Injector:
Setting pressure:
Gas rate:
Input:
Output:
Gas connection:
2.2
WATER.
Maximum output:
Maximum water temperature:
User temperature control allows settings below maximum.
Maximum working head:
Minimum circulation head:
Water connections:
2.3
ELECTRICAL SUPPLY:
3.
3.1
RELATED DOCUMENTS (refer to current issues).
This appliance MUST BE installed in accordance with the relevant requirements of the Gas Safety (Installation and
Use) Regulations, local Building Regulations, the I.E.E. regulations and the Bye-laws of the local Water Company. It
should also be in accordance with any relevant requirements of the local Gas Region and Local Authority, and the relevant
recommendations of the following British Standard Codes of Practice:
BS 6798:
Specification for installation of gas fired hot water boilers of rated input not exceeding 60kW.
BS5546:
Installation of gas hot water supplies for domestic purposes (2
BS5440 Pt. 1: Flues.
BS5440 Pt. 2 Air supply.
BS6891:
Installation of low pressure gas pipe work up to 28mm (R1) in domestic premises.
BS6700:
Design, Installation, testing and maintenance of services supplying water for domestic use within
buildings and their curtilages.
3.2
GAS SUPPLY.
adequate size, and pipes of a smaller diameter than the appliance are not to be used. The complete installation must be
tested for gas soundness, and purged as detailed in BS6891.
CIRCULATOR WATER HEATERS
WARNING: THIS APPLIANCE MUST BE EARTHED
GENERAL DESCRIPTION
Amal type 340.
17.5 mbar (7.0 in wg).
0.42m
3
/h (14.85ft
4.4kW (15,000Btu/h).
3.32kW (11,340Btu/h).
8mm o/d gas feed pipe.
62.5 litres/h (13.7 gal/h) with 44.5
o
o
77
C (170
20m (65ft).
610mm (24in) with indirect cylinder, 356mm (14in) with direct cylinder.
3
3
Rp
/
(
/
" BSP internal parallel).
4
4
230V, 50Hz connection to solenoid valve via pre-wired plug and lead.
GENERAL REQUIREMENTS
Installation of pipework is to be in accordance with BS6891. Pipework from the gas meter is to be of
ELJAN 4/SE
G.C. No 53 416 19
TECHNICAL DATA
3
/h).
o
C (80
F).
1
Publication No. ZZ 600/8
o
F) rise.
nd
family gases).
May 2000

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Summary of Contents for Johnson & Starley ELJAN 4/SE

  • Page 1 GENERAL DESCRIPTION ELJAN 4/SE is a gas fired circulator which can generate up to 62.5 litres per hour (13.7 gal/h) of hot water when installed in a Johnson & Starley HI-SPEC J25SC or SCS25 MkI air heater in SE-duct applications. The appliance is suitable for use in a fully pumped circuit comprising radiators and/or an INDIRECT cylinder.
  • Page 2 BS2879. 3.3.3 Economy valves can only be used in a DIRECT installation. Feed Cold water tank storage Hot water Drain cock Indirect storage cylinder Drain cock Circulator Fig. 1a. Typical ELJAN 4/SE Indirect System application.
  • Page 3: Installation

    Fit the rope ring seal (provided) to the spigot. Carefully slide the ELJAN 4/SE circulator into position, and partially fit the two M6 screw (provided) through the slotted holes at the base of the unit, but do not fully tighten.
  • Page 4: Water Connections

    Flue clamping plate Fig. 2 ELJAN 4/SE Flue Clamping. Fully tighten the two screw M6 screws at the base of the unit. 4.10 Remove the plug from the air heater Burner and Controls assembly gas supply pipe and fit the stud coupling (provided) using a proprietary sealing compound to seal the thread.
  • Page 5: Gas Pressure Setting

    Ensure the Thermostat capillary is fully inserted into the pocket in the flow connection of the circulator. ELJAN 4/SE is factory set to provide a flow temperature of 60°C (140°F). If a higher flow temperature is required, proceed as follows: 5.3.1...
  • Page 6: Temperature Control

    ZZ600/8 PRESSURE ADJUSTMENT SCREW TEMPERATURE OUTLET CONTROL PRESSURE TEST POINT INLET PRESSURE TEST POINT Fig. 4 Multifunctional control Component Identification 9 - 12 mm Pilot Burner Electrode Thermocouple Fig. 5 Pilot burner and flame profile INSTRUCTIONS FOR USER If the building is unoccupied, ensure that the User Instructions (including those for the air heater) are left with the appliance for the user.
  • Page 7: Routine Maintenance

    ZZ600/8 MAINTENANCE IMPORTANT: Ensure gas and electricity supplies are isolated before commencing any maintenance or replacement of components. After completion of any maintenance, always test for gas soundness and carry out a complete functional test of the appliance in accordance with Commissioning Instructions at Sect 5.1 to 5.5 inclusive. ROUTINE MAINTENANCE 7.1.1 Operate the appliance and check for correct function of the burner and controls.
  • Page 8 Release the 2 x screws securing the circulator and withdraw the circulator body from the air heater cabinet. 7.7.6 Refitment or replacement is in reverse order, ensuring that: Any replacement circulator body is clearly marked ELJAN 4/SE. Fittings on the circulator body are well supported when remaking water connections. SOLENOID VALVE REMOVAL: 7.8.1...
  • Page 9: Defect Diagnosis

    ZZ600/8 DEFECT DIAGNOSIS IMPORTANT: If an electrical defect occurs after installation of the appliance; preliminary earth continuity, polarity, and resistance to earth checks should be carried out with a multimeter. On completion of any maintenance/fault-finding task that has required the breaking and remaking of electrical connections, then checks of continuity, polarity, and resistance to earth must be repeated.
  • Page 10 Gas inlet connection Igniter electrode Multifunctional control Pilot burner Temperature control Flue clamping plate Thermostat retaining plug Cover plate Thermostat phial Solenoid valve coil Water Flow connection Solenoid valve body Water Return connection Burner mounting plate Fig. 6 ELJAN 4/SE Component Layout...
  • Page 11 ZZ600/8 SHORT LIST OF SPARES G.C. No J&S Part No Description S252-0705000 Waterways replacement assembly (HI-SPEC J25SC) 245 440 S250-0705000 Waterways replacement assembly (SCS25) 245 546 S252-0710000 Burner and Controls Assembly (HI-SPEC J25SC) 245 451 S250-0710000 Burner and Controls Assembly (SCS25S) 245 486 S00560 Burner bar and plate assembly (SCS25)
  • Page 12 Johnson and Starley prides itself on its ability to supply spare parts quickly and efficiently. If your service engineer indicates a problem in obtaining a spare part, advise him to contact Johnson and Starley Spares Department at the address below. Telephone: 01604 762881 JOHNSON AND STARLEY Ltd.,...

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