JANUS 6/30
CIRCULATOR WATER HEATER
INSTALLATION, COMMISSIONING & SERVICING INSTRUCTIONS
G.C. No 53 416 27
Publication No.ZZ 1057/1
May 2000
WARNING: THIS APPLIANCE MUST BE EARTHED
This appliance is for use with natural gas only.
GENERAL DESCRIPTION
1.
1.1
JANUS 6/30 is an open flued gas fired circulator designed for floor or wall mounting, which can generate up to
64.8 litres per hour (14.3 gal/h) of hot water. It is suitable for use in a gravity fed circuit serving a hot water storage
cylinder (tank) and may be used efficiently with indirect storage systems or, in soft water areas, direct systems. Indirect
systems are preferred; direct systems should be used only when recommended by the local water company.
1.2
The gas supply to the main burner is controlled by a multi-functional gas control valve. 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.
1.3
JANUS 6/30 pilot burner contains an Atmospheric Sensing Device which is able to detect a reduction in the oxygen
content of the combustion air to the appliance under adverse conditions, and will cause the pilot burner to be
extinguished. The appliance must then be re-ignited in accordance with the Ignition Instructions.
2.
2.1
TECHNICAL DATA
NATURAL GAS:
Injector:
Amal type 187/001/004. Diameter 1.7mm.
Setting pressure:
14.0 mbar (5.6 in wg).
Gas rate:
0.42m3/h (14.85ft3/h).
Input:
4.4kW (15,000Btu/h).
Output:
3.32kW (11,340Btu/h).
1
1
Gas connection:
Rc /4 ( /4in BSP).
Gas service cock:
Rc1/4 (1/4in BSP) union gas cock (supplied loose).
Table 1.
HIJAN Janus 6/30 Gas configuration
2.2
WATER:
Maximum output:
Up to 64.8 litres/h (14.3 gal/h) with 44.5oC (80oF) rise.
Maximum water temperature: Normal factory setting
60oC (140oF) see Section 10.2.2.
User temperature control allows settings below maximum.
Maximum working head: 20m (65ft).
Minimum circulation head: 610mm (24in) with indirect cylinder, 356mm (14in) with direct cylinder.
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.,
Rhosili Road,
Brackmills,
Fax :
01604 767408
Northampton NN4 7LZ
2.3
FLUE:
75mm (3in) as standard, with adapter plate to convert to 100mm (4in) flue.
2.4
OVERALL DIMENSIONS:
Height:
496mm (19.5in).
Width:
123mm (4.9in).
Length:
416mm (16.9in) including controls cover.
353mm (13.9in) excluding controls cover.
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2.5
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INSTALLATION AND CLEARANCES:
IMPORTANT: Care must be taken to ensure that adequate space is available at the front and ‘open’ side of the
heater for installation purposes.
2.5.1
Minimum clearance for combustion:
Front: 25mm (1in) from controls cover.
Sides: 16mm (5/8in) from side nearest to wall, 13mm (1/2in) from open side to any cylindrical obstruction
(i.e.. Hot water cylinder)Note: If these minimum side clearances are to be adopted, special care must be
taken in the compartment construction to permit access to appliance mountings.
Rear: 100mm (4in).
Base: Nil. The appliance may be floor mounted on noncombustible material.
2.5.2 Minimum clearance for servicing:
Front: 300mm (12in).
Side: 200mm (8in).
Note: Flow and return pipes may be routed over the top of the heater, provided adequate access is available for
heat exchanger cleaning.
9
1
5
2
3
200mm
WALL SIDE
OPEN SIDE
FRONT
REAR
8
7
4
6
100mm
9.
SHORT LIST OF SPARES
Key
G.C. No
J&S Part No
Description
1
2
3
242 279
145 285
S00102
JAN6/30/062
BOS 01104
S00260
BOS 00562
JAN3-0704000
BOS 02397/1
BOS 02401
1000-0701800
1000-0701790
1000-0703000
BOS 02394
BOS 01970
1000-0701470
BOS 01458
BOS 01646
BOS 01160
1000-0700570
1000-2500075
Main Body Assembly
Burner and Controls Assembly (comprising of)
Multifunctional Control Mini SIT
‘O’ Ring Seal
Burner Arm
Pilot burner mounting bracket
Pilot Burner Assembly
Thermocouple
Hook Nut
Hook Olive
Pilot Gas Feed Pipe
Igniter Lead
Electrode
Main Injector housing
Lock Nut
Main Injector
Copper washer
Piezo Unit
Phial Retaining Plug
4
5
6
381 6070
384 615
300mm
16mm
13mm
397 819
Fig. 1
Minimum clearances for JANUS 6/30
3.
7
GENERAL REQUIREMENTS
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, 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 (2nd family gasses).
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
LOCATION:
3.2.1
8
9
395 945
230 328
The location chosen for the circulator must permit the provision of a satisfactory flue and termination, an
adequate air supply for combustion purposes, and an adequate space for servicing and air circulation around
the appliance. The JANUS 6/30 must not be installed in a room containing a bath or shower, or either a
bedroom or a bed-sitting room.
2
11
Qty
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
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DEFECT DIAGNOSIS
8.
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.
3.2.2
3.3
CUPBOARD AND COMPARTMENT VENTILATION:
3.3.1
Where JANUS 6/30 are to be installed in a cupboard or compartment, permanent air vents are required
in the
enclosure at both high and low level for combustion, flue dilution, and cooling purposes. These air vents must
communicate either with a room or internal space, or be direct to outside air.
3.3.2
Minimum effective areas of the permanent air vents required in the enclosure are specified below (ref. BS5440
Pt. 2, Table 2)
Note: Both air vents must communicate with the same room or internal space, or be on the same wall
to outside air.
NOTE: When purging or checking gas supplies ensure that, there is adequate ventilation to the room or
cupboard, and all naked lights are extinguished.
SYMPTOM
a. Pilot fails to light.
i
POSSIBLE CAUSE
RECTIFICATION
No gas supply to water heater.
Check for gas at inlet pressure test point on
Multifunctional control.
Purge gas supply pipe in accordance with BS6891.
Clean or replace pilot assembly.
Check/replace piezo unit, lead or pilot burner assembly.
ii Gas supply not purged.
iii Pilot injector orifice restricted.
iv Piezo faulty.
b. Pilot fails to remain lit. i
ii
c. Main burner fails to
light
i.
Thermocoulpe defective.
Pilot flame out of adjustment.
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A compartment used to enclose the circulator must be designed and constructed specifically for this purpose.
An existing cupboard or compartment may be used providing that it is modified for this purpose. Details of
essential features of cupboard installations are given in BS6798 and BS5546.
Replace pilot burner assembly.
Adjust pilot flame adjusting screw to provide pilot flame
of approximately 15mm long and just enveloping
thermocouple tip.
OFF button accidentally depressed.
ii Thermostat overheat.
iii Thermostat defective.
Check plumbing, in particular lateral runs.
f. Water temperature
outside usable range.
Set thermostat for required water temperature or replace
Multifunctional control.
Check burner pressure, main injector for blockage,
replace main injector if faulty.
Replace Multifunctional control.
i. Thermostat out of calibration.
ii. Gas rate incorrect.
iii Thermostat phial or capillary
damaged.
Air direct
from outside
High Level
40cm2 (61/ in)
20cm2 (3 / in2)
Low Level
1
80cm2 (13in2)
4
1
40cm2 (6 / in2)
2
Table 2
Permanent Air Vents, Minimum Effective Areas
3.3.3
3.4
There are no specific ventilation requirements if the appliance is installed in a room or space, but it should be
noted that if there is a fan in the room or internal space (i.e. extractor fan or cooker hood fan), spillage of
combustion products may occur if the room or internal space is not adequately ventilated to outside air. Where
such installations occur, a spillage test as described in sub-para 3.5.8 must be carried out, and rectification
undertaken where necessary.
GAS SUPPLY:
Installation of pipework is to be in accordance with BS6891. Pipework from the gas meter is to be of 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.
3.5
IMPORTANT: If a faulty heater control may have resulted in excessively high water temperatures, (above 85ºC,
185ºF), the hot water cylinder should be checked to establish whether it is a SELF-PRIMING type. If so, the circuit
should be drained and refilled to ensure that the air seal between the primary and secondary circuits in the cylinder is
properly established.
3.6
FLUE SYSTEM:
Detailed recommendations for Flues are given in BS5440 Pt 1. The following points however, are of particular
importance:
3.5.1
The cross-sectional area of the flue serving the appliance must not be less then the area of the flue outlet of the
appliance.
3.5.2
A terminal of a type which has been tested and found satisfactory by British Gas should be fitted at the outlet.
3.5.3
The point of termination must not be within 600mm (2ft) of a opening window, air vent, or any other opening
and should be above roof edge level.
3.5.4
The flue should have a length not exceeding that given in BS5440 Pt 1, Fig. 13 to avoid condensation.
3.5.5
The flue pipe must not be closer than 25mm (1in) to combustible material. For twin wall flue pipe, the 25mm
(1in) distance should be measured from the inner pipe face.
3.5.6
The flue pipe must be secured by support brackets, fitted throughout its length, at intervals of not more than
1.8m (6ft).
3.5.7
If flueing into an existing chimney, the chimney must be swept before connecting the appliance.
3.5.8
The flue system must be tested prior to installation of the appliance by application of a lighted smoke match to
the opening and observing whether all the smoke is pulled up the flue. In certain conditions, there may be
spillage of smoke due to inversion caused by the flue being colder than the outside air. If such occurrences
arise, heat is to introduced into the flue (i.e. by blowlamp) and the spillage test repeated. If either downdraught
or no definite upflow is indicated, this must be investigated and corrected.
WATER CIRCULATION SYSTEM:
Detailed recommendations for the water circulation system are given in BS6798 and BS5446.
3.6.1
10
Air from room
or internal space
2
Press ‘OFF’ button, wait for loud click (approx 3
minutes) and repeat lighting procedure.
Draw off hot water from system to allow thermostat to
cool, and ensure burner lights.
Replace Multifunctional control.
d. Insufficient hot water. i. Burner operation cycle too short
due to incorrect plumbing.
Position of
Air vents
To ensure good circulation in gravity circuits, flow pipes should be designed to run vertically from the water
heater before running laterally. Any lateral run should be less than 2 x the previous vertical run. Pipework
should be installed with a rise towards the vent point. Note: For easy removal of the water heater, compression
fittings are recommended.
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7.3
3.6.2
Drain cocks must be located in accessible positions, which permit the draining of the whole system, including
the appliance and hot water storage vessel. A drain cock should be fitted at the lowest point of the water heating
circuit and, in the case of an indirect system, another must be fitted at the lowest point of the cold feed. Drain
cocks should be at least 1/2 in nominal size, and be in accordance with BS28798.
3.6.3
Economy valves can only be used in a DIRECT installation.
Feed
tank
Note: The relationship between the pilot and thermocouple is critical and must not be disturbed. Do not attempt to
dismantle the pilot assembly. If any part of the pilot assembly is considered defective, the complete assembly must be
replaced.
Cold water
storage
7.4
Circulation
Head
Working Head = 20m (65ft) maximum
Hot water
Indirect storage
cylinder
Drain
cock
7.5
Drain
cock
Circulator
PILOT ASSEMBLY
Fig. 2a.
Typical JANUS 6/30 Indirect System application.
7.3.1
Remove the Burner and controls assembly as detailed in para 7.2
7.3.2
Disconnect ignition lead from electrode.
7.3.3
Release 2 x screw securing Pilot assembly, and withdraw pilot assembly from main burner mounting bracket.
7.3.4
Release 4mm hook and olive connection from pilot injector.
7.3.5
Release thermocouple connection from Multifunctional control.
7.3.6
Refitment or replacement is in reverse order, ensuring that the thermocouple connection at the Multifunctional
control is not overtightened, (finger tight + ¼ turn only).
MAIN INJECTOR
7.4.1
Remove Burner and Controls assembly as detailed in para 7.2
7.4.2
Remove Pilot Assembly as detailed in para 7.3
7.4.3
Release main burner lock nut, and unscrew main burner from injector.
7.4.4
Unscrew main injector from injector housing.
7.4.5
Refitment or replacement is in reverse order, ensuring that the main burner is screwed in as close as possible to
the injector shoulder. NOTE: If burner is not vertically aligned, the burner and control assembly will not fit into
the water body for re-assembly.
DRAUGHT DIVERTER
7.5.1
Release flue split collar.
7.5.2
Release 4 x screws securing upper front plate to top cover and withdraw upper front plate.
7.5.3
Release screw securing draught diverter to appliance and withdraw draught diverter and top cover.
7.5.4
Release 4 x screws securing top cover to draught diverter at flue spigot and withdraw draught diverter. (This is
only necessary should the draught diverter require replacement.)
7.5.5
Refitment or replacement is in reverse order.
Note: When refitting or replacing the draught diverter assembly, ensure the spigot on the assembly engages in the flange
located on the rear of the heat exchanger body.
Feed
Tank
7.6
Hot water
7.7
Direct storage
cylinder
HEAT EXCHANGER ASSEMBLY
7.6.1
Remove Burner and Controls assembly as detailed in para 7.2
7.6.2
Remove Draught Diverter as detailed in para 7.5
7.6.3
Drain heating system.
7.6.4
Disconnect water body at flow and return connections.
7.6.5
Remove appliance from wall or floor fixing.
7.6.6
Release 4 x screws securing heat exchanger to appliance casing and withdraw heat exchanger.
7.6.7
Refitment or replacement is in reverse order.
MULTIFUNCTIONAL CONTROL
7.7.1
Remove Burner and Controls assembly as detailed in para 7.2
7.7.2
Remove the Pilot assembly and main injector as detailed in 7.3 and 7.4
7.7.2
Disconnect the pilot feed pipe and thermocouple capillary from the Multifunctional control.
7.7.3
Release the bolt and nut securing the mounting bracket, and withdraw the bracket.
7.7.4
Refitment or replacement is in reverse order, ensuring replacement ‘O’ ring seal, and transfer of data badge in the
event of replacement.
Drain
cock
Circulator
Fig. 2b
Typical JANUS 6/30 Direct System application.
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5.6
SYSTEM OPERATION:
4.
5.6.1
With the appliance ignited, ensure all controls operate correctly.
4.1
5.6.2
Carry out spillage test in accordance with para 3.5.8.
5.6.3
Allow system to reach working temperature and switch appliance OFF, rapidly drain and refill the system,
clearing any air locks and test for water soundness.
5.6.4
Turn OFF Gas supply cock.
5.6.5
At Multifunctional control, remove Gas Pressure Test Gauge and refit Inlet Pressure cover.
5.6.6
Fit Control Cover.
5.6.7
Turn Gas supply cock ON.
5.6.8
Relight the appliance and set the appliance to the User’s requirements.
6.
INSTALLATION
PREPARATION:
Referring to Figs. 3a to 3c for component identification, Para 2.6 and Fig. 1 for minimum installation clearances
4.1.1
4.1.2
4.1.3
INSTRUCTIONS FOR USER
6.1
Instruct the customer in the safe and efficient operation of both the appliance and system.
6.2
Advise customer of the necessary precautions to prevent damage to the system and building during periods of frost
when the heating system is not in operation.
6.3
Advise the customer that it is important for adequate servicing to be carried out annually, in order to maintain safe and
efficient operation of the appliance.
6.4
Hand User’s Instructions to the customer for retention.
7.
MAINTENANCE
4.2
Remove the appliance from packaging, and retain loose components,
Remove and discard transit strap.
Remove burner and controls assembly as follows:
a.
Disconnect the igniter lead from Piezo unit.
b.
Release 4 x securing screws and remove the lower front panel
c.
Remove the thermostat retaining plug from the flow connection pocket (item 5) and remove the
thermostat phial taking care to avoid causing damage to the thermostat phial.
d.
Release the burner mounting screw and remove the Burner and Controls assembly, taking care to avoid
causing damage to the Thermostat capillary.
e.
Refitting of the Burner and Controls assembly following installation of the appliance is in reverse order,
remembering to reconnect the igniter earth lead at the lower front plate screw.
FLOOR MOUNTING:
4.1
Position the appliance on the floor, and mark the position for the floor fixing screws through the front feet.
4.2
Drill and plug the fixing points (as necessary), and secure the appliance with suitable screws (not provided).
Upper front plate
IMPORTANT: Before commencing any maintenance or component replacement, ENSURE that the Gas supply is
turned OFF . On completion of maintenance, ENSURE the appliance is tested for GAS SOUNDNESS.
7.1
ROUTINE SERVICING
7.1.1
Remove and inspect the Burner and Control Assembly, cleaning the main burner, pilot burner, and injectors as
required.
Note: During annual servicing, ASD pilots must be inspected for damage to any component part and the aeration port
must be cleaned to remove lint or debris. No attempt should to be made to clean ASD pilots with any hard tool that could
result in swarfe or foreign bodies, since this can block the pilot injector, thereby affecting the safety performance. Upon
ignition, both pilot flames should appear stable and ‘clean’, and the pilot assembly replaced if this is not so. If any
damage is found, then the complete pilot assembly will require replacement.
7.2
7.1.2
Inspect the Thermocouple and ignition lead for signs of damage, cleaning or replacing as required.
7.1.3
Inspect the Heat Exchanger flueways, clean by brushing from above and below and taking care to avoid damaging
the surrounding insulation. Remove debris from the Heat Exchanger and Burner aperture using a vacuum cleaner or
air duster. Clean any debris from the heat shield at the base of the appliance.
7.1.4
Ignite the appliance and test for gas soundness.
7.1.5
Ensure the appliance and controls are operating correctly.
7.1.6
Carry out spillage test to ensure flue products are clearing satisfactorily.
Circulator/Body
fixing screws
(both sides)
Piezo unit
Fig. 3a
JANUS 6/30 General Arrangement
a
BURNER AND CONTROLS ASSEMBLY
c
7.2.1
Ensure the gas supply is turned OFF at the supply cock.
7.2.2
Disconnect gas supply to appliance.
7.2.3
Disconnect ignition lead from Piezo unit and remove Control Cover.
7.2.4
Withdraw retaining plug from thermostat pocket and remove thermostat phial, taking care to avoid damage to
the thermostat.
7.2.5
Release Burner Mounting Screw and withdraw burner and control assembly.
7.2.6
Refitment or replacement is in reverse order, ensuring that:
a.
b.
b
Lug on rear of main burner engages into the bracket at the rear of the appliance body.
When refitting thermostat phial care is taken to avoid damaging the phial.
a
b
c
Fig. 3b
BURNER and CONTROLS ASSY
8
5
Pilot burner
Electrode
Thermocouple
4.3.2
Fit and secure the mounting bracket to heater using screws fitted at 4.3.1, ensuring the free slots on the mounting
bracket are to the front of the heater.
4.3.3
Using the appropriate template, mark the position of the 4 x fixing screws on the wall where the heater is to be
fitted, ensuring that the heater will be level when fitted.
4.3.4
Fix the retaining bracket to the wall using suitable wall plugs and screws.
4.3.5
Plug and partially insert 2 x screws to accept the mounting bracket.
4.3.6
Locate the appliance rear foot in the retaining bracket and engage the 2 x slots in the mounting bracket onto the
screws fitted at 4.3.5.
4.3.7
4.4
4.5
Ensure that a minimum length of 600mm (24in) of vertical flue is fitted directly above the draught diverter
wherever possible.
4.4.2
Ensure that a split collar is fitted in the flue within the 600mm (24in) vertical flue, preferably at or above the
mid point, to enable draught diverter removal.
Note: If a flue pipe conforming to BS715 is used, a suitable flue adaptor ( not included) must be fitted.
WATER CONNECTIONS:
4.6.2
5.4.3
Pilot
Adjustment
a.
Stop screw 1 to provide a maximum temperature of 68°C (155°F), or,
b.
Stop screws 1 and 2 to provide a maximum temperature of 77°C (170°F).
Refit Multifunctional control Temperature/Control knob, ensuring that it fully engages on the valve spindle.
Stop screw 2
Stop screw 1
OF
F
HO
T
Fig. 4a
Stop screw positions
5.5
Connect flow and return pipes as required, in accordance with the guidelines detailed in Sect 3.6. To facilitate
subsequent dismantling of the heat exchanger, use union fittings at the point of connection to the appliance.
Ensure that return pipe work does not restrict access to the thermostat phial.
Prior to installation of the pump (if required), flush the system thoroughly ensuring that all valves are open.
Fit Burner and Control assembly to appliance, ensuring that the square lug to the rear of the assembly engages
into the locating bracket, and secure using the mounting screw ensuring that the screw is also used to secure the
capillary clip.
Fig. 4c
Maximum Setting 77ºC
Fig. 4b
Minimum Setting 60ºC
Fig. 4
Water Temperature Control Settings
GAS PRESSURE SETTING:
5.5.1
Referring to fig. 5, remove Inlet Pressure Test Point cover and connect Gas Pressure Test Gauge.
5.5.2
Turn the gas supply on at the gas service cock.
5.5.3
Referring to lighting instruction label, ignite the pilot burner and ensure the pilot flame envelopes the
thermocouple tip, adjusting the Pilot Adjusting screw if necessary.
Note: If the pilot flame cannot be set using the Pilot Adjustment screw, the pilot burner assembly must
be replaced.
5.5.4
Referring to Fig. 5 and Table 1 (para 2.1), set Multifunctional control Pressure Adjuster to provide the required
setting pressure for the installation.
Insert thermostat phial fully into flow pocket and secure using thermostat retaining plug.
GAS CONNECTIONS:
4.7.1
Connect a suitable gas supply to the appliance via the union service cock supplied. Ensure that the pipe work
does not cause obstruction for Burner and Control assembly removal.
4.7.2
Test the gas installation for gas soundness, and purge in accordance with BS6891.
FINAL ASSEMBLY:
4.8.1
Connect ignition lead to Piezo unit.
4.8.2
Fix lighting instruction label to exposed side of the appliance.
PRESSURE
ADJUSTMENT
SCREW
OUTLET
PRESSURE
TEST POINT
Sit
off
5.
Dependant upon the required water temperature, remove:
BURNER AND CONTROLS ASSEMBLY FITTING:
4.6.1
4.8
5.4.2
Ensuring that the appliance is level, secure the mounting bracket fixing screws.
4.4.1
4.5.2
4.7
Referring to Figs. 4, identify stop screws 1 and 2.
FLUE INSTALLATION:
The flue pipe is to be installed in accordance with the guidelines detailed in para 3.5.
4.5.1
4.6
5.4.1
Sit
Replace the 2 x 13mm No 8 case/body fixing screws from the side of the heater to be affixed to the wall with 2 x
20mm No 8 screws (provided separately), ensuring these screws are not fully tightened.
ZZ1057/1
WATER TEMPERATURE SETTING FOR INDIRECT SYSTEMS:
Note: Thermostats are factory set to a temperature of 60°C (140°F), which is suitable for DIRECT and should NOT
be exceeded for this type of system. For INDIRECT systems, removal of stop screws situated on the temperature
control mechanism allows the Temperature Control to be set beyond the 60°C limit.
HO
T
4.3.1
5.4
HOT
TEMPERATURE
CONTROL
COMMISSIONING
5.1
With the pump fitted (if required), fill the water circulation system, clear any air locks and check for water soundness.
5.2
Remove Multifunctional control Temperature/Control knob, (this is a push fit only)
5.3
Ensure the Multifunctional control Pilot adjusting screw is fully out, (approximately 5 full turns counterclockwise from
fully in) indicated by a slight restriction when turned counterclockwise.
*
INLET
PRESSURE
TEST POINT
Fig. 5
Multifunctional control Component Identification
7
6
Sit
ZZ1057/1
WALL MOUNTING:
Prior to wall mounting, remove the fixing template from the packaging and decide whether the appliance is to be L.H or
R.H mounted. The handing of the mounting refers to the side of the heater to be affixed to the wall, utilizing the
mounting bracket provided.
F
OF
4.3
4.3.2
Fit and secure the mounting bracket to heater using screws fitted at 4.3.1, ensuring the free slots on the mounting
bracket are to the front of the heater.
4.3.3
Using the appropriate template, mark the position of the 4 x fixing screws on the wall where the heater is to be
fitted, ensuring that the heater will be level when fitted.
4.3.4
Fix the retaining bracket to the wall using suitable wall plugs and screws.
4.3.5
Plug and partially insert 2 x screws to accept the mounting bracket.
4.3.6
Locate the appliance rear foot in the retaining bracket and engage the 2 x slots in the mounting bracket onto the
screws fitted at 4.3.5.
4.3.7
4.4
4.5
Ensure that a minimum length of 600mm (24in) of vertical flue is fitted directly above the draught diverter
wherever possible.
4.4.2
Ensure that a split collar is fitted in the flue within the 600mm (24in) vertical flue, preferably at or above the
mid point, to enable draught diverter removal.
Note: If a flue pipe conforming to BS715 is used, a suitable flue adaptor ( not included) must be fitted.
WATER CONNECTIONS:
4.6.2
5.4.3
Pilot
Adjustment
a.
Stop screw 1 to provide a maximum temperature of 68°C (155°F), or,
b.
Stop screws 1 and 2 to provide a maximum temperature of 77°C (170°F).
Refit Multifunctional control Temperature/Control knob, ensuring that it fully engages on the valve spindle.
Stop screw 2
Stop screw 1
OF
F
HO
T
Fig. 4a
Stop screw positions
5.5
Connect flow and return pipes as required, in accordance with the guidelines detailed in Sect 3.6. To facilitate
subsequent dismantling of the heat exchanger, use union fittings at the point of connection to the appliance.
Ensure that return pipe work does not restrict access to the thermostat phial.
Prior to installation of the pump (if required), flush the system thoroughly ensuring that all valves are open.
Fit Burner and Control assembly to appliance, ensuring that the square lug to the rear of the assembly engages
into the locating bracket, and secure using the mounting screw ensuring that the screw is also used to secure the
capillary clip.
Fig. 4c
Maximum Setting 77ºC
Fig. 4b
Minimum Setting 60ºC
Fig. 4
Water Temperature Control Settings
GAS PRESSURE SETTING:
5.5.1
Referring to fig. 5, remove Inlet Pressure Test Point cover and connect Gas Pressure Test Gauge.
5.5.2
Turn the gas supply on at the gas service cock.
5.5.3
Referring to lighting instruction label, ignite the pilot burner and ensure the pilot flame envelopes the
thermocouple tip, adjusting the Pilot Adjusting screw if necessary.
Note: If the pilot flame cannot be set using the Pilot Adjustment screw, the pilot burner assembly must
be replaced.
5.5.4
Referring to Fig. 5 and Table 1 (para 2.1), set Multifunctional control Pressure Adjuster to provide the required
setting pressure for the installation.
Insert thermostat phial fully into flow pocket and secure using thermostat retaining plug.
GAS CONNECTIONS:
4.7.1
Connect a suitable gas supply to the appliance via the union service cock supplied. Ensure that the pipe work
does not cause obstruction for Burner and Control assembly removal.
4.7.2
Test the gas installation for gas soundness, and purge in accordance with BS6891.
FINAL ASSEMBLY:
4.8.1
Connect ignition lead to Piezo unit.
4.8.2
Fix lighting instruction label to exposed side of the appliance.
PRESSURE
ADJUSTMENT
SCREW
OUTLET
PRESSURE
TEST POINT
Sit
off
5.
Dependant upon the required water temperature, remove:
BURNER AND CONTROLS ASSEMBLY FITTING:
4.6.1
4.8
5.4.2
Ensuring that the appliance is level, secure the mounting bracket fixing screws.
4.4.1
4.5.2
4.7
Referring to Figs. 4, identify stop screws 1 and 2.
FLUE INSTALLATION:
The flue pipe is to be installed in accordance with the guidelines detailed in para 3.5.
4.5.1
4.6
5.4.1
Sit
Replace the 2 x 13mm No 8 case/body fixing screws from the side of the heater to be affixed to the wall with 2 x
20mm No 8 screws (provided separately), ensuring these screws are not fully tightened.
ZZ1057/1
WATER TEMPERATURE SETTING FOR INDIRECT SYSTEMS:
Note: Thermostats are factory set to a temperature of 60°C (140°F), which is suitable for DIRECT and should NOT
be exceeded for this type of system. For INDIRECT systems, removal of stop screws situated on the temperature
control mechanism allows the Temperature Control to be set beyond the 60°C limit.
HO
T
4.3.1
5.4
HOT
TEMPERATURE
CONTROL
COMMISSIONING
5.1
With the pump fitted (if required), fill the water circulation system, clear any air locks and check for water soundness.
5.2
Remove Multifunctional control Temperature/Control knob, (this is a push fit only)
5.3
Ensure the Multifunctional control Pilot adjusting screw is fully out, (approximately 5 full turns counterclockwise from
fully in) indicated by a slight restriction when turned counterclockwise.
*
INLET
PRESSURE
TEST POINT
Fig. 5
Multifunctional control Component Identification
7
6
Sit
ZZ1057/1
WALL MOUNTING:
Prior to wall mounting, remove the fixing template from the packaging and decide whether the appliance is to be L.H or
R.H mounted. The handing of the mounting refers to the side of the heater to be affixed to the wall, utilizing the
mounting bracket provided.
F
OF
4.3
ZZ1057/1
ZZ1057/1
5.6
SYSTEM OPERATION:
4.
5.6.1
With the appliance ignited, ensure all controls operate correctly.
4.1
5.6.2
Carry out spillage test in accordance with para 3.5.8.
5.6.3
Allow system to reach working temperature and switch appliance OFF, rapidly drain and refill the system,
clearing any air locks and test for water soundness.
5.6.4
Turn OFF Gas supply cock.
5.6.5
At Multifunctional control, remove Gas Pressure Test Gauge and refit Inlet Pressure cover.
5.6.6
Fit Control Cover.
5.6.7
Turn Gas supply cock ON.
5.6.8
Relight the appliance and set the appliance to the User’s requirements.
6.
INSTALLATION
PREPARATION:
Referring to Figs. 3a to 3c for component identification, Para 2.6 and Fig. 1 for minimum installation clearances
4.1.1
4.1.2
4.1.3
INSTRUCTIONS FOR USER
6.1
Instruct the customer in the safe and efficient operation of both the appliance and system.
6.2
Advise customer of the necessary precautions to prevent damage to the system and building during periods of frost
when the heating system is not in operation.
6.3
Advise the customer that it is important for adequate servicing to be carried out annually, in order to maintain safe and
efficient operation of the appliance.
6.4
Hand User’s Instructions to the customer for retention.
7.
MAINTENANCE
4.2
Remove the appliance from packaging, and retain loose components,
Remove and discard transit strap.
Remove burner and controls assembly as follows:
a.
Disconnect the igniter lead from Piezo unit.
b.
Release 4 x securing screws and remove the lower front panel
c.
Remove the thermostat retaining plug from the flow connection pocket (item 5) and remove the
thermostat phial taking care to avoid causing damage to the thermostat phial.
d.
Release the burner mounting screw and remove the Burner and Controls assembly, taking care to avoid
causing damage to the Thermostat capillary.
e.
Refitting of the Burner and Controls assembly following installation of the appliance is in reverse order,
remembering to reconnect the igniter earth lead at the lower front plate screw.
FLOOR MOUNTING:
4.1
Position the appliance on the floor, and mark the position for the floor fixing screws through the front feet.
4.2
Drill and plug the fixing points (as necessary), and secure the appliance with suitable screws (not provided).
Upper front plate
IMPORTANT: Before commencing any maintenance or component replacement, ENSURE that the Gas supply is
turned OFF . On completion of maintenance, ENSURE the appliance is tested for GAS SOUNDNESS.
7.1
ROUTINE SERVICING
7.1.1
Remove and inspect the Burner and Control Assembly, cleaning the main burner, pilot burner, and injectors as
required.
Note: During annual servicing, ASD pilots must be inspected for damage to any component part and the aeration port
must be cleaned to remove lint or debris. No attempt should to be made to clean ASD pilots with any hard tool that could
result in swarfe or foreign bodies, since this can block the pilot injector, thereby affecting the safety performance. Upon
ignition, both pilot flames should appear stable and ‘clean’, and the pilot assembly replaced if this is not so. If any
damage is found, then the complete pilot assembly will require replacement.
7.2
7.1.2
Inspect the Thermocouple and ignition lead for signs of damage, cleaning or replacing as required.
7.1.3
Inspect the Heat Exchanger flueways, clean by brushing from above and below and taking care to avoid damaging
the surrounding insulation. Remove debris from the Heat Exchanger and Burner aperture using a vacuum cleaner or
air duster. Clean any debris from the heat shield at the base of the appliance.
7.1.4
Ignite the appliance and test for gas soundness.
7.1.5
Ensure the appliance and controls are operating correctly.
7.1.6
Carry out spillage test to ensure flue products are clearing satisfactorily.
Circulator/Body
fixing screws
(both sides)
Piezo unit
Fig. 3a
JANUS 6/30 General Arrangement
a
BURNER AND CONTROLS ASSEMBLY
c
7.2.1
Ensure the gas supply is turned OFF at the supply cock.
7.2.2
Disconnect gas supply to appliance.
7.2.3
Disconnect ignition lead from Piezo unit and remove Control Cover.
7.2.4
Withdraw retaining plug from thermostat pocket and remove thermostat phial, taking care to avoid damage to
the thermostat.
7.2.5
Release Burner Mounting Screw and withdraw burner and control assembly.
7.2.6
Refitment or replacement is in reverse order, ensuring that:
a.
b.
b
Lug on rear of main burner engages into the bracket at the rear of the appliance body.
When refitting thermostat phial care is taken to avoid damaging the phial.
a
b
c
Fig. 3b
BURNER and CONTROLS ASSY
8
5
Pilot burner
Electrode
Thermocouple
ZZ1057/1
ZZ1057/1
7.3
3.6.2
Drain cocks must be located in accessible positions, which permit the draining of the whole system, including
the appliance and hot water storage vessel. A drain cock should be fitted at the lowest point of the water heating
circuit and, in the case of an indirect system, another must be fitted at the lowest point of the cold feed. Drain
cocks should be at least 1/2 in nominal size, and be in accordance with BS28798.
3.6.3
Economy valves can only be used in a DIRECT installation.
Feed
tank
Note: The relationship between the pilot and thermocouple is critical and must not be disturbed. Do not attempt to
dismantle the pilot assembly. If any part of the pilot assembly is considered defective, the complete assembly must be
replaced.
Cold water
storage
7.4
Circulation
Head
Working Head = 20m (65ft) maximum
Hot water
Indirect storage
cylinder
Drain
cock
7.5
Drain
cock
Circulator
PILOT ASSEMBLY
Fig. 2a.
Typical JANUS 6/30 Indirect System application.
7.3.1
Remove the Burner and controls assembly as detailed in para 7.2
7.3.2
Disconnect ignition lead from electrode.
7.3.3
Release 2 x screw securing Pilot assembly, and withdraw pilot assembly from main burner mounting bracket.
7.3.4
Release 4mm hook and olive connection from pilot injector.
7.3.5
Release thermocouple connection from Multifunctional control.
7.3.6
Refitment or replacement is in reverse order, ensuring that the thermocouple connection at the Multifunctional
control is not overtightened, (finger tight + ¼ turn only).
MAIN INJECTOR
7.4.1
Remove Burner and Controls assembly as detailed in para 7.2
7.4.2
Remove Pilot Assembly as detailed in para 7.3
7.4.3
Release main burner lock nut, and unscrew main burner from injector.
7.4.4
Unscrew main injector from injector housing.
7.4.5
Refitment or replacement is in reverse order, ensuring that the main burner is screwed in as close as possible to
the injector shoulder. NOTE: If burner is not vertically aligned, the burner and control assembly will not fit into
the water body for re-assembly.
DRAUGHT DIVERTER
7.5.1
Release flue split collar.
7.5.2
Release 4 x screws securing upper front plate to top cover and withdraw upper front plate.
7.5.3
Release screw securing draught diverter to appliance and withdraw draught diverter and top cover.
7.5.4
Release 4 x screws securing top cover to draught diverter at flue spigot and withdraw draught diverter. (This is
only necessary should the draught diverter require replacement.)
7.5.5
Refitment or replacement is in reverse order.
Note: When refitting or replacing the draught diverter assembly, ensure the spigot on the assembly engages in the flange
located on the rear of the heat exchanger body.
Feed
Tank
7.6
Hot water
7.7
Direct storage
cylinder
HEAT EXCHANGER ASSEMBLY
7.6.1
Remove Burner and Controls assembly as detailed in para 7.2
7.6.2
Remove Draught Diverter as detailed in para 7.5
7.6.3
Drain heating system.
7.6.4
Disconnect water body at flow and return connections.
7.6.5
Remove appliance from wall or floor fixing.
7.6.6
Release 4 x screws securing heat exchanger to appliance casing and withdraw heat exchanger.
7.6.7
Refitment or replacement is in reverse order.
MULTIFUNCTIONAL CONTROL
7.7.1
Remove Burner and Controls assembly as detailed in para 7.2
7.7.2
Remove the Pilot assembly and main injector as detailed in 7.3 and 7.4
7.7.2
Disconnect the pilot feed pipe and thermocouple capillary from the Multifunctional control.
7.7.3
Release the bolt and nut securing the mounting bracket, and withdraw the bracket.
7.7.4
Refitment or replacement is in reverse order, ensuring replacement ‘O’ ring seal, and transfer of data badge in the
event of replacement.
Drain
cock
Circulator
Fig. 2b
Typical JANUS 6/30 Direct System application.
4
9
ZZ1057/1
DEFECT DIAGNOSIS
8.
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.
3.2.2
3.3
CUPBOARD AND COMPARTMENT VENTILATION:
3.3.1
Where JANUS 6/30 are to be installed in a cupboard or compartment, permanent air vents are required
in the
enclosure at both high and low level for combustion, flue dilution, and cooling purposes. These air vents must
communicate either with a room or internal space, or be direct to outside air.
3.3.2
Minimum effective areas of the permanent air vents required in the enclosure are specified below (ref. BS5440
Pt. 2, Table 2)
Note: Both air vents must communicate with the same room or internal space, or be on the same wall
to outside air.
NOTE: When purging or checking gas supplies ensure that, there is adequate ventilation to the room or
cupboard, and all naked lights are extinguished.
SYMPTOM
a. Pilot fails to light.
i
POSSIBLE CAUSE
RECTIFICATION
No gas supply to water heater.
Check for gas at inlet pressure test point on
Multifunctional control.
Purge gas supply pipe in accordance with BS6891.
Clean or replace pilot assembly.
Check/replace piezo unit, lead or pilot burner assembly.
ii Gas supply not purged.
iii Pilot injector orifice restricted.
iv Piezo faulty.
b. Pilot fails to remain lit. i
ii
c. Main burner fails to
light
i.
Thermocoulpe defective.
Pilot flame out of adjustment.
ZZ1057/1
A compartment used to enclose the circulator must be designed and constructed specifically for this purpose.
An existing cupboard or compartment may be used providing that it is modified for this purpose. Details of
essential features of cupboard installations are given in BS6798 and BS5546.
Replace pilot burner assembly.
Adjust pilot flame adjusting screw to provide pilot flame
of approximately 15mm long and just enveloping
thermocouple tip.
OFF button accidentally depressed.
ii Thermostat overheat.
iii Thermostat defective.
Check plumbing, in particular lateral runs.
f. Water temperature
outside usable range.
Set thermostat for required water temperature or replace
Multifunctional control.
Check burner pressure, main injector for blockage,
replace main injector if faulty.
Replace Multifunctional control.
i. Thermostat out of calibration.
ii. Gas rate incorrect.
iii Thermostat phial or capillary
damaged.
Air direct
from outside
High Level
40cm2 (61/ in)
20cm2 (3 / in2)
Low Level
1
80cm2 (13in2)
4
1
40cm2 (6 / in2)
2
Table 2
Permanent Air Vents, Minimum Effective Areas
3.3.3
3.4
There are no specific ventilation requirements if the appliance is installed in a room or space, but it should be
noted that if there is a fan in the room or internal space (i.e. extractor fan or cooker hood fan), spillage of
combustion products may occur if the room or internal space is not adequately ventilated to outside air. Where
such installations occur, a spillage test as described in sub-para 3.5.8 must be carried out, and rectification
undertaken where necessary.
GAS SUPPLY:
Installation of pipework is to be in accordance with BS6891. Pipework from the gas meter is to be of 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.
3.5
IMPORTANT: If a faulty heater control may have resulted in excessively high water temperatures, (above 85ºC,
185ºF), the hot water cylinder should be checked to establish whether it is a SELF-PRIMING type. If so, the circuit
should be drained and refilled to ensure that the air seal between the primary and secondary circuits in the cylinder is
properly established.
3.6
FLUE SYSTEM:
Detailed recommendations for Flues are given in BS5440 Pt 1. The following points however, are of particular
importance:
3.5.1
The cross-sectional area of the flue serving the appliance must not be less then the area of the flue outlet of the
appliance.
3.5.2
A terminal of a type which has been tested and found satisfactory by British Gas should be fitted at the outlet.
3.5.3
The point of termination must not be within 600mm (2ft) of a opening window, air vent, or any other opening
and should be above roof edge level.
3.5.4
The flue should have a length not exceeding that given in BS5440 Pt 1, Fig. 13 to avoid condensation.
3.5.5
The flue pipe must not be closer than 25mm (1in) to combustible material. For twin wall flue pipe, the 25mm
(1in) distance should be measured from the inner pipe face.
3.5.6
The flue pipe must be secured by support brackets, fitted throughout its length, at intervals of not more than
1.8m (6ft).
3.5.7
If flueing into an existing chimney, the chimney must be swept before connecting the appliance.
3.5.8
The flue system must be tested prior to installation of the appliance by application of a lighted smoke match to
the opening and observing whether all the smoke is pulled up the flue. In certain conditions, there may be
spillage of smoke due to inversion caused by the flue being colder than the outside air. If such occurrences
arise, heat is to introduced into the flue (i.e. by blowlamp) and the spillage test repeated. If either downdraught
or no definite upflow is indicated, this must be investigated and corrected.
WATER CIRCULATION SYSTEM:
Detailed recommendations for the water circulation system are given in BS6798 and BS5446.
3.6.1
10
Air from room
or internal space
2
Press ‘OFF’ button, wait for loud click (approx 3
minutes) and repeat lighting procedure.
Draw off hot water from system to allow thermostat to
cool, and ensure burner lights.
Replace Multifunctional control.
d. Insufficient hot water. i. Burner operation cycle too short
due to incorrect plumbing.
Position of
Air vents
To ensure good circulation in gravity circuits, flow pipes should be designed to run vertically from the water
heater before running laterally. Any lateral run should be less than 2 x the previous vertical run. Pipework
should be installed with a rise towards the vent point. Note: For easy removal of the water heater, compression
fittings are recommended.
3
ZZ1057/1
2.5
ZZ1057/1
INSTALLATION AND CLEARANCES:
IMPORTANT: Care must be taken to ensure that adequate space is available at the front and ‘open’ side of the
heater for installation purposes.
2.5.1
Minimum clearance for combustion:
Front: 25mm (1in) from controls cover.
Sides: 16mm (5/8in) from side nearest to wall, 13mm (1/2in) from open side to any cylindrical obstruction
(i.e.. Hot water cylinder)Note: If these minimum side clearances are to be adopted, special care must be
taken in the compartment construction to permit access to appliance mountings.
Rear: 100mm (4in).
Base: Nil. The appliance may be floor mounted on noncombustible material.
2.5.2 Minimum clearance for servicing:
Front: 300mm (12in).
Side: 200mm (8in).
Note: Flow and return pipes may be routed over the top of the heater, provided adequate access is available for
heat exchanger cleaning.
9
1
5
2
3
200mm
WALL SIDE
OPEN SIDE
FRONT
REAR
8
7
4
6
100mm
9.
SHORT LIST OF SPARES
Key
G.C. No
J&S Part No
Description
1
2
3
242 279
145 285
S00102
JAN6/30/062
BOS 01104
S00260
BOS 00562
JAN3-0704000
BOS 02397/1
BOS 02401
1000-0701800
1000-0701790
1000-0703000
BOS 02394
BOS 01970
1000-0701470
BOS 01458
BOS 01646
BOS 01160
1000-0700570
1000-2500075
Main Body Assembly
Burner and Controls Assembly (comprising of)
Multifunctional Control Mini SIT
‘O’ Ring Seal
Burner Arm
Pilot burner mounting bracket
Pilot Burner Assembly
Thermocouple
Hook Nut
Hook Olive
Pilot Gas Feed Pipe
Igniter Lead
Electrode
Main Injector housing
Lock Nut
Main Injector
Copper washer
Piezo Unit
Phial Retaining Plug
4
5
6
381 6070
384 615
300mm
16mm
13mm
397 819
Fig. 1
Minimum clearances for JANUS 6/30
3.
7
GENERAL REQUIREMENTS
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, 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 (2nd family gasses).
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
LOCATION:
3.2.1
8
9
395 945
230 328
The location chosen for the circulator must permit the provision of a satisfactory flue and termination, an
adequate air supply for combustion purposes, and an adequate space for servicing and air circulation around
the appliance. The JANUS 6/30 must not be installed in a room containing a bath or shower, or either a
bedroom or a bed-sitting room.
2
11
Qty
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
JANUS 6/30
CIRCULATOR WATER HEATER
INSTALLATION, COMMISSIONING & SERVICING INSTRUCTIONS
G.C. No 53 416 27
Publication No.ZZ 1057/1
May 2000
WARNING: THIS APPLIANCE MUST BE EARTHED
This appliance is for use with natural gas only.
GENERAL DESCRIPTION
1.
1.1
JANUS 6/30 is an open flued gas fired circulator designed for floor or wall mounting, which can generate up to
64.8 litres per hour (14.3 gal/h) of hot water. It is suitable for use in a gravity fed circuit serving a hot water storage
cylinder (tank) and may be used efficiently with indirect storage systems or, in soft water areas, direct systems. Indirect
systems are preferred; direct systems should be used only when recommended by the local water company.
1.2
The gas supply to the main burner is controlled by a multi-functional gas control valve. 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.
1.3
JANUS 6/30 pilot burner contains an Atmospheric Sensing Device which is able to detect a reduction in the oxygen
content of the combustion air to the appliance under adverse conditions, and will cause the pilot burner to be
extinguished. The appliance must then be re-ignited in accordance with the Ignition Instructions.
2.
2.1
TECHNICAL DATA
NATURAL GAS:
Injector:
Amal type 187/001/004. Diameter 1.7mm.
Setting pressure:
14.0 mbar (5.6 in wg).
Gas rate:
0.42m3/h (14.85ft3/h).
Input:
4.4kW (15,000Btu/h).
Output:
3.32kW (11,340Btu/h).
1
1
Gas connection:
Rc /4 ( /4in BSP).
Gas service cock:
Rc1/4 (1/4in BSP) union gas cock (supplied loose).
Table 1.
HIJAN Janus 6/30 Gas configuration
2.2
WATER:
Maximum output:
Up to 64.8 litres/h (14.3 gal/h) with 44.5oC (80oF) rise.
Maximum water temperature: Normal factory setting
60oC (140oF) see Section 10.2.2.
User temperature control allows settings below maximum.
Maximum working head: 20m (65ft).
Minimum circulation head: 610mm (24in) with indirect cylinder, 356mm (14in) with direct cylinder.
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.,
Rhosili Road,
Brackmills,
Fax :
01604 767408
Northampton NN4 7LZ
2.3
FLUE:
75mm (3in) as standard, with adapter plate to convert to 100mm (4in) flue.
2.4
OVERALL DIMENSIONS:
Height:
496mm (19.5in).
Width:
123mm (4.9in).
Length:
416mm (16.9in) including controls cover.
353mm (13.9in) excluding controls cover.
1