Installation instructions
Jetmaster Mark 2 Gas Coal / Pebble
with Millivolt Control
Jetmaster gas coal / pebble burners are fuel effect
appliances intended for use in a fireplace suitable for the
burning of wood. It is recommended that the Jetmaster
gas log be placed in a properly installed Jetmaster
Convector firebox in order to ensure an adequate
draught and greater efficiency. The Jetmaster open fire
is an approved open fire to burn wood.The following
size fireboxes are available for the Type 1 Burner to be
inserted into. The firebox can be installed into an
existing fireplace subject to the chimney being the
appropriate size and in sound condition. The firebox
can also be installed from new with a gather and a flue.
(DIMENSIONS IN MILLIMETERS)
AA1 B C DE
500 500 700 350 650 200 200
600 670 700 350 650 200 200
600 LOW 670 700 350 600 200 200
700SH 770 800 350 650 200 200
700SH LOW 770 800 350 600 200 200
700D 770 800 400 700 225 200
IMPORTANT: Installation of this appliance should only be
carried out by an authorised person in accordance with the
manufacturers instructions. All relevant codes and regulations
laid down by the gas supply authorities, uniform building
regulations and the requirements of local municipal authorities
must be observed. The installation should comply with
AS5601/AG601 Clauses 5.12.13.2 and 5.12.13.5.
Model Type 1: Decorative
Gas Coal / Pebble Fire
500/600/700 MARK 2 GAS COAL / PEBBLE BURNER
DATA PLATE: Refer to date place for information in
respect of gas pressure,consumption and gas type, Natural
or LPG.The data place is located to the side of the grate.
Location Requirements
1. The fireplace construction must be non-combustible
and in accordance with the current Building Regulations
for chimney and fireplace intended for solid fuel use.
2. The flue and/or chimney should be tested and
proven to have an adequate updraft which shall be
sufficient to remove all waste products of combustion.
A minimum cross-sectional area of 40,000 sq mm is
required with a minimum chimney flue height of 3.6
meters.The installer must satisfy himself that the fireplace
is functioning properly and a smoke test is recommended.
When using a Jetmaster firebox the appropriate diameter
flue for the model fireplace should be used.
3. The appliance must comply with AG601 Gas
Installation Code.
4. In cases where a twin walled metal flue is used and
provided such flue shall comply with the clearances
specified in AS2918 or manufacturers instructions in
respect of clearance to combustibles.
5. In cases where a metal is used, such flue shall
comply with the standards relating to grade, quality and
thickness as are current.
6. An approved flue cowl with a minimum cross-sections
of 40,000sq mm shall be affixed to the top of the flue or
chimney.
7. The installer must remove or fix in an open position
any damper which may be affixed to or contained in any
fireplace.
8. It should be noted that the Code AS2286 (space
heating appliances-secondary guards) requires a dress
guard to be affixed to the appliance or fireplace.
9. Ventilation.An opening to outside with a minimum
free ventilation area of 400sq cm shall be provided for
each decorative gas log fire.
NOTE: The chimney in which the appliance is installed
is not to be considered as a ventilation opening.
10. The appliance shall be installed into a fireplace with a
minimum opening of 600mm width and 217mm depth
and shall be no greater than 10650mm width and
400mm depth.
11. Combustible materials to be no closer than
100mm either side of fireplace opening and no closer
than 150mm above the opening. The firebox should
have a non combustible hearth in front of the firebox.
Installation instructions Jetmaster Mark 2 Gas Coal / Pebble
Electricity
Supply
Gas
Supply
Fan
Switch
Installation:
Fitting the Gas Grate
1. Check unit is suitable for intended gas supply.
2. The position of the gas control and inlet is on the right hand
side and is 3/8" B.S.P. female connection for L.P.G. A 1/2" regulator
is supplied when fitting to natural gas. Check that the chimney is
clear prior to fitting.
3. In an existing fireplace or Jetmaster firebox (if being used) drill
a 15mm hole through the right hand side of the fireplace(as you
face it) at a point of 85mm from the base and 85mm from the rear
wall(if providing stop cock in firebox).85mm from front wall (if stop
cock is outside firebox).
4. Cut and debur both ends of pipe. Fit the end to the gas supply
point and turn on for approximately 5 seconds to clear the pipe of
any dirt or grit. Fit the other end to the gas unit.
5. The regulator is included on the S.I.T. control on the unit.
6. Turn on the gas and check all connections for leaks using soapy
water or approved method. Fix any
leaks.
7. Possible carbon deposition may occur on the appliance
incorporating live fuel effect.
Adjusting Pressure, Pilot
and Low Fire
1. All settings are set to operate at appropriate pressures (see data
plate)
. Test point is located on gas valve.
2. Check low fire if adjusted correctly.
3. The pressure can be measured on the gas valve and the
regulator adjusted to the appropriate pressure (see data plate
affixed to side of the appliance.)
Lighting Instructions
PILOT FLAME IGNITION
Locate control knob on right hand side of valve. Depress and turn
control knob
(FIG 1) to the PILOT position (FIG 4). Depress
the control button and ignite with piezo ignitor
(FIG 2) whilst
keeping control knob firmly depressed for 20 seconds. Check that
pilot stays lit. If it goes out repeat ignition procedure.
MAIN BURNER IGNITION
Depress and turn control knob anti-clockwise from PILOT
position to the ON position
(FIG 5). The burner will not
ignite
if the rocker switch is depressed in the OFF position (FIG 3).
To light main burner press rocker switch to ON position (FIG 3).
TO TURN MAIN BURNER OFF WITH PILOT
REMAINING BURNING
Depress rocker switch to OFF position. (FIG 3)
Main burner can also be turned off by the use of control knob.This
is done by turning control knob clockwise to PILOT position
(FIG 8). Control knob will need to be turned back to ON
position
(FIG 5) to light main burner.
TO TURN MAIN BURNER OFF OR ON WITH
OPTIONAL WALL SWITCH
Pilot must be burning.
Control knob is in the ON position.
(FIG 5)
Rocker switch is in the OFF position. (FIG 3)
Wall switch can now be activated.
Important! Wall switch can only be activated if rocker switch is in
off position.
TO TURN PILOT AND MAIN BURNER OFF
Depress and turn control knob clockwise from ON position
(FIG 5) or PILOT position (FIG 4) to the OFF position
(FIG 6).
TO TURN MAIN BURNER HIGHER OR LOWER
Turn high / low flame knob to obtain high or low fire (FIG 7).
Installation Instructions Jetmaster Mark 2 Gas Coal/Pebble
Fig 1
Control knob
Fig 2
Pietzo Igniter
Fig 3
Rocker Switch
Fig 6
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Fig 5
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Fig 4
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Low flame High flame
High / Low
flame knob
Fig 7
Fig 8
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HOW TO ADJUST GAS PRESSURE
Installation instructions Jetmaster Mark 2 Gas Coal / Pebble
Laying the fire
• Unpack the coals/pebbles contained in a clear
plastic bag and lay a row of coals/pebbles on the
vermiculite along the back of the burner tray leaving
approximately 12-15mm between them.
• Leave spaces at the edges to allow free flow of gas.
• Place a further row of coals/pebbles directly in front
of the first row but staggered so that the second row
of coals are behind the gaps of the first row leaving
approximately 12-15mm between the rows of each
coal/pebble.
• Lay further rows of staggered coals/pebbles
depending on the size of the basket grate.
• Once the bottom layer is completed, build up 2-3
tiers of coals in a honeycomb pattern to form an
elongated pyramid.
• Lay the coals/pebbles so that some irregularity to
the pile through which the flames may lick, is created.
• Your aim is to build “windows” into the fire through
which the radiant effect may show but at the same
time, not leaving such large gaps between the coals/
pebbles that excessive air may enter and “damp down”
the red glow.
• After the fire has been alight for 15 minutes, you
may wish to add the odd coal/pebble or even relay the
fire completely. Allow to cool before touching the
coals/pebbles.
• Experience will enable you to obtain a pleasing
appearance with suitable heat output, but please bear
in mind that it is important to maintain the general
pattern described above and indicated in illustrations.
MARK 2 COALS 440 / 500 - 390 X 240
MARK 2 COALS 600 - 460 X 260
MARK 2 COALS 700 - 580 X 260
MARK 2 PEBBLES 700 - 580 X 260
Installation instructions Jetmaster Mark 2 Gas Coal / Pebble
Commissioning Procedure
Installed correctly the burner should not emit any
fumes into the room.The following procedure should
be undertaken to test that the unit is operating
correctly.
1. After unit has been operating for a short period a
smoke match, smoke tube, carbon dioxide analyser or
similar should be directed at the top opening of the
unit.
2. This procedure should be undertaken with the
following conditions in the room:
• Open or closed windows
• Operation of extraction/exhaust fans, range
hoods etc
• Operation of other gas appliances
• Operation of optional appliance fan at any speed.
3. Should any spillage be detected the cause must be
rectified before allowing commissioning of unit.
User Instructions
1. WARNING NOTE: Properly installed and operated
this appliance will not leak gases. Persistent fume
emission must not be tolerated. If fume emission does
exist, then the following immediate action should be
taken.
A. Open doors and windows to ventilate room.
B. Turn the fire off.
C. Check for flue blockage and clear if necessary.
D. Do not attempt to relight the burner until the cause
of the emission has been identified and rectified. Should
assistance or advice be required contact nearest agent
or Jetmaster.
E. The gas grate is recommended for use in a
Jetmaster firebox which has been designed to ensure a
proper draw and to eliminate emission spillage.
2. Initially the Jetmaster coal / pebble fire may burn with
a slightly blue flame.After approximately 20 minutes the
fire will settle down and burn with a yellow flame.
3. As with all gas appliances your gas coal / pebble fire
should be regularly serviced. We recommend once
each year. Contact your nearest Jetmaster authorised
agent to provide service.The routine for an authorised
person to follow has been set out in an attached leaflet.
4. PLEASE NOTE: Only coals / pebbles provided by
Jetmaster should be used with this appliance.
5. DO NOT place articles on or against this appliance.
DO NOT use or store flammable materials near
this appliance.
DO NOT spray aerosols in the vicinity of this
appliance whilst it is in operation.
Primarily a decorative appliance not certified as a
space heater.
6. The appliance is a live fuel effect product designed
to operate with luminous flames and may exhibit slight
carbon deposition.
Warranty
Provided the appliance has been correctly installed
according to instructions, Jetmaster guarantee the
cost of replacing parts and the labour in connection
therewith for a period of 12 months from the date of
installation. Should the appliance be subject to a
service contract the replacement of the parts and
the service involved in such replacement shall be at
no charge to the owner and the Warranty shall be
extended to 3 years (provided of course the
appliance had been continuously serviced by an
approved Jetmaster agent).
SPECIFICATIONS
NAME OF APPLIANCE: JETMASTER GAS COAL MARK 2
KEMLAN GAS COAL MARK 2
WITH MILLIVOLT IGNITION
MANUFACTURED BY: JETMASTER FIREPLACES AUSTRALIA PTY
LTD.
CERTIFICATE NO. 4958
LABORATORY REPORTS: 511285, 511286,511389.
DATE: MAY 1994
The gas fire is a Type 1 Decorative gas coal fire with imitation coals or
pebbles (700MK2P/C and 800MK2P/C) placed over a bed of vermiculite
contained within a metal tray. It is designed to fit into an existing masonry
fireplace or equivalent approved open fireplace. The gas fire consists of an
outer decorative grate which houses a mild steel burner tray. A front plate
is provided to cover controls.
CAPACITY
Model
Gas Type
Gas Cons
MJ/H
Min/Max
Injector
T.P.P.Kpa
500MK2 NG 30/39
3.0
1.00
500MK2 LPG(propane) 30/39
1.65
2.75
600MK2 LPG(propane) 30/39
1.65
2.75
600MK2 NG 30/39
3.0
1.00
700MK2 LPG(propane) 30/39
1.65
2.75
700MK2 NG 30/39
3.0
1.00
700MK2P/C LPG(propane) 39/55
2.0
2.75
700MK2P/C NG 39/55
3.55
1.00
800MK2P/C NG 39/55
3.55
1.00
800MK2P/C LPG(propane) 39/55
2.0
2.75
800MK2 NG 30/39
3.0
1.00
800MK2 LPG(propane) 30/39
1.65
2.75
OVERALL DIMENSIONS: See drawings supplied
400/500 Grate *
600 Grate
*700 Grate *800 Grate
Width 390mm 460mm
580mm
740mm
Height 210mm 210mm
210mm
210mm
Depth 240mm 260mm
260mm
320mm
Weight 9kg 12kg
15kg
18kg
* 400 Burner is the same as 500 Burner but does not have two decorative legs on the
outer grate. Note, workings are identical.
*700 Burner is the same as the 800 Burner.800 burner has wider decorative grate.
MARKING
Data plate will be affixed to the left hand side of the unit on the external
decorative grate. Other details i.e. name plates, lighting instructions and
temporary labels will be affixed to the inside of the front cover plate.
CONSTRUCTION
GENERAL:
The gas fire consists of 4.5mm guage steel bars welded onto a 4.5mm guage
mild steel frame to provide the appearance of a solid fuel basket grate. A
1.6mm guage
folded mild steel tray is located within the basket grate. It is welded to the
back of the grate and attached to the front by means of two lugs. A space
of 10mm exists between the front of the burner and the grate and 30mm
between the sides. The frame of the gas grate extends down on the sides
providing the support for the tray and houses the controls under the burner.
A cast iron venturi tapered mixing tube is welded to the base of the tray
through which gas is introduced. (see drawings for size) Gas is dispersed
evenly around the burner by means of a 2mm guage mild deflector plate.
Four bolt heads are welded to the base of each tray. The plate with four
10mm holes is inserted in to the upturned bolts and secured to the base with
the nuts. Clearance from base to deflector plate is 5mm.
GAS SYSTEM
Gas inlet connection: Flared ½” inlet and is located on the right hand
side of the gas grate.
Regulator: Beckley Type A.G.A. App. No. 4688(Nat gas only)
3/B BSP Female for LPG
Bromic Type BMWF1A A.G.A. App. No. 5149
Piping: 5/16” aluminium tube with flared fittings.
Thickness of pipework is 19 guage.
Gas control: A simplosit S.I.T. H-O.500.017 model (AGA
approval No. 3531) is located under the burner
tray.
Burner: A folded mild steel tray with deflector plate. A
cast iron venturi tapered mixing tube is welded to
the base through which gas is introduced.
Pilot: S.I.T. Pilot assembly OxypilotN.G.No.9418.Oxypilot
L.P.G.9603. ¼” B.S.P. connection. Thickness of pipe
is 19 guage ¼” aluminium.Pilot located on the right
hand side.
Pilot Turn off Value: Effibi mini valve A.G.A. No. 5301.
Pressure Test Point: ¼” diameter nipple located behind the outlet of the
gas valve.Inlet pressure is measured on outlet
point located on regulator.
Injector: Details – Section drawing.
CONVERSION DETAILS
Remove injectors by unscrewing nuts in venturi. Replace with injector
specified on date plate. The appropriate injector must be used (see data
plate).
Replace pilot assembly to appropriate gas.
Pilot assembly must be replaced with appropriate models.
Regulator is required to be fitted to a natural gas appliance. For LPG the
appliance regulator requires removal.
Note pressures on data plate for natural and LP gas and adjust accordingly.
The test point is located on the SIT valve.
HEATING SYSTEM
.
Vermiculite: Is varied in size. (grade 4) Average size is approximately
3-5mm in diameter.
Coals/pebbles: Coals/pebbles are ceramic fibre coated with a glaze and
silicate. Refer to attached drawing.
500MK2 COAL AMOUNT 22
600MK2 COAL AMOUNT 22
700MK2 COAL AMOUNT 22
800MK2 COAL AMOUNT 22
700MK2P/C COAL/PEBBLE AMOUNT 22
800MK2P/C COAL/PEBBLE AMOUNT 22
GENERAL GUIDE FOR SET-UP OF NOVA MV
SYSTEM.
1). Bleed all air from gas lines.
2). With the main burner functioning, adjust the inlet pressure regulator to supply gas to
the appliance within the desig n parameters of the appliance manufacturer.
3). Make certain that the thermocouple and thermo-generator are fully inserted and
tightened into their receptacles in the pilot head. The thermocouple should be threaded
into the valve hand-tight, plus ¼ turn with a wrench.
4). Verify that the system is wired properly, and that all connections are clean and tight.
Thermo-generator leads are connected to the TPTH and TP connections of the main
operator. Thermostat and wall switch wires are connected to the TPTH, and TH terminals
of the valve.
5). Turn OFF/PILOT/ON knob to the PILOT positio n a n d depress knob, while lighting
the pilot with a match or piezo ignitor.
6). Continue to hold the knob down until enough current is generated to engage the safety
magnet.(Mill-Volt Plus systems use a thermocouple to power the safety magnet, Millivolt
systems utilise power fro m the thermo-generator).
7). After the pilot has been lit for approximately three minutes , and only the thermogenerator wires connected to the main operator head, measure the voltage across TPTH
and TP. This open circuit voltage should be between 500mV and 750mv. Tune the pilot
adjustment screw until the mV reading falls within these parameters. (Counter clockwise
increases the mV reading, clockwise decreases)
8).With the pilot adjusted properly, place a jumper wire between TPTH and TH. Take
mV reading across the TPTH and TP terminals on the valve. This closed circuit voltage
should remain above 300mV.
9).Remove jumper wire from the TPTH and TH connections, and re-conn ect the
thermostat and wall switch wire to the same terminals. Take the closed circuit voltage as
described in the previous step. This closed circuit should remain above 175mV.
10). Rotate OFF/PILOT/ON knob to the ON position. Main burner will light.
11).Verify operation of the thermostat and wall switch by cycling each individually,
while observing the main burner operation.
12). Rotate the OFF/PILOT/ON knob to the OFF position. Both the pilot and main burner
will be extinguished.
PROBLEM POSSIBLE CAUSE SOLUTION
Pilot will not light No gas
1)Bleed air from gas line.
2)Check stop cocks are in on
position.(No blockage in line)
Wrong inlet pressure Adjust inlet pressure with main burner
running.(see diagram)
Defective spark
electrode.
Replace electrode if the insulator is
cracked or the tip is corroded. Verify that
the spark gap between the pilot and the
electrode is correct.
Defective piezo wire. Replace piezo wire if insulation is
damaged , or the wire is broken or
corroded.
Safety interlock
function engaged.
Allow thermocouple to cool until the mV
drops below the hold in requirements of
the safety magnet,(30 seconds or less).
Re-light pilot.
Pilot will not hold Wrong inlet pressure. Adjust inlet pressure with main burner
running (see diagram).
Pilot adjustment screw
not properly adjusted.
Refer to item # 7 in the set-up
guide.(also see diagram)
Thermocouple or
thermo-generator not
properly inserted into
the pilot housing.
Refer to item #3 in the set-up guide.(see
diagram)
Thermocouple or
thermo-generator has
film build-up on tip.
With the thermocouple and thermogenerator tips cool, clean the upper 3/8”
with a very fine emery cloth.
Electrical resistance too
high.
Using a very fine emery cloth, clean
thermo-generator and thermocouple
connections at valve. Tighten
thermocouple into valve hand tight, plus
¼ turn with a wrench.
Defective
thermocouple(mV Plus
systems)
Verify that thermocouple is not kinked
or damaged. Check open circuit v o lta ge
of thermocouple. Voltage should be
between 18mV and 28mV. If voltage is
less than 14mV, replace thermocouple.
Defective thermo-
generator.(Millivolt
system)
Refer to item # 7 in the set-up guide.
Defective safety
magnet.(mV Plus
systems)
Verify operation of safety magnet in the
following manner.
(A) Depress and hold pilot button.
(B) Verify open-circuit thermocouple
voltage as described in previous step.
© Reconnect thermocouple to valve.
(D) Measure the Millivoltage between
the solder button on the base of the
safety magnet, and the valve body. If the
mV reading is above 6mV for vente d
appliances, and the safety magnet does
not hold, replace the valve.
(E) If closed circuit mV reading is the
same as the open circuit reading, the coil
is electrically open. Replace the valve.
Defective Safety
Magnet.(Millivolt
system)
Verify operation of safety magnet in the
following manner.
(A) Remove all wires from the terminals
TPTP and TP. If the voltage is above
110mV and the safety magnet does not
hold , replace the valve.
Pilot injector blocked. Replace injec t or with a new injector of
the exact size and type.
Pilot drops out Wrong pilot injector Replace the injector with a new injector
supplied specifically for the appliance
and gas type in question.
Oxypilot activated Examine flue system. Repair as
necessary.
No gas to main
burner with pilot
running.
Low gas pressure to
appliance.
Adjust inlet pres sure with the main
burner running.(see diagram).
Control knob not in ON
position.
Rotate OFF/PILOT/ON control knob to
the ON position.
Thermostat/wall
switch will not
cycle main burner.
Thermostat not in ON
position.
Turn thermostat ON, and adjust
temperature control to call for heat.
Thermo-generator
output voltage not
within design
parameters.
Refer to item #7 in the set-up guide. If
unable to meet minimum requirements,
replace thermo-generator.
Defective thermostat or
thermostat wiring.
(A) With the pilot adjusted properly,
(Set-up section, step#7), place a jumper
wire between TPTH and TH . Take a mV
reading across the TPTH and TP
terminals on the valve. This closed
circuit voltage should not fall below
300mV. Record reading.
(B) Remove jumper wire from the TPTH
and TH connections, and reconnect the
thermostat wires to the same terminals.
Take the closed circuit voltage as
described in the previous step. If the mV
reading drops below 150mV, excessive
resistance exists in the thermostat circuit,
and must be isolated and eliminated.
Defective wall switch Repeat the above troubleshooting items
covered under “Defective thermostat or
thermostat wiring”, except substitute the
words “wall switch” where the word
“thermostat” appears in the instructions.
Excessive wire
resistance
Make certain that all mV connections are
made using wire of the proper size.
Valve wired wrong. Thermo-generator leads must be
connected to the TPTH and TP
connections of the main operator.
Thermostat wires must be connected to
the TPTH, and TH terminals of the valve.
Main burner
lights in the
PILOT position
Main operator coil
Defective
Verify electrical resistance of main
operator coil in the following manner.
(A) Remove all wires from operator head.
(B)With an Ohm meter, measure
electrical resistance between TPand TH
terminals. If the resistance does not fall
within specification, replace valve.
Debris on seat of main
valve.
Replace valve.
Main seat blown out as
a result of exposing
LPG gas valve to
unregulated line
pressure in excess of
15PSI
Replace valve.
Notes
For further information contact Jetmaster Australia
10 Martin Avenue, Arncliffe NSW 2205 T: 02 9597 7222 F: 02 9597 7622
E: sales@jetmaster.com.au W: www.jetmaster.com.au
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