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Supply Gas Installation

The gas supply inlet connection is a 1/2” NPT female. 

Gas shut-off valve supplied on the end of stainless 

steel flexible connector. Flex connector is located on 

the left hand rear corner of the appliance.

Use only new black iron or steel pipes or copper tubing 

if acceptable—check local codes. Note that in USA, 

copper tubing must be internally tinned for protection 

against sulfur compounds.
The burner module and gas train on this appliance 

may be removed as a unit for servicing. The flex pipe 

supplied with the unit provides a union for removal of 

the module.
Unions in gas lines should be of ground joint type.
The gas supply line must be sized and installed to 

provide a supply of gas sufficient to meet the maximum 

demand of the appliance without undue loss of 

pressure.
Sealant used must be resistant to the action of all 

gas constituents including LP gas. Sealant should be 

applied lightly to male threads to ensure excess sealant 

does not enter gas lines.
Pressure test the supply line for leaks.
The appliance and its individual shut-off valve must be 

disconnected from the gas supply piping system during 

any pressure testing of that system at test pressures in 

excess of 1/2 psig (3.5 kPa).
The appliance must be isolated from the gas supply 

piping system by closing its equipment shut-off valve 

during any pressure testing of the gas supply piping 

system at test pressures equal to or less than 1/2 psi 

(3.5 kPa).
Failure to either disconnect or isolate the appliance 

during pressure testing may resulting regulator or 

valve damages and void the warranty. Consult your 

dealer in case of damages.

X

X

Pressure Testing

Manifold Test 

Pressure

Valve Inlet 

Pressure

Valve Assembly

Control 

Valve

34” (864 mm) 

flex pipe 

supplied with 

appliance

Shut-off valve 

supplied with 

appliance

1/2” NPT 

female

Manifold 

Pressure 

Adjustment 

behind 

Plastic Cap

Pressure Test Points

The minimum supply pressure is given in the 

subsection 

Ratings

 of this manual—page 5.

All piping and connections must be tested for leaks 

after installation or servicing. All leaks must be 

corrected immediately.
When testing for leaks:
•  Make sure that the appliance is turned off.

•  Open the manual shut-off valve.

•  Test for leaks by applying a liquid detergent or soap 

solution to all joints. Bubbles forming indicate a gas 

leak. 

Never use an open flame to check for leaks. 

Correct any leak detected immediately.

The pressure test 

tapping locations is 

shown in the figure 

below. An internal 

regulator within the 

valve controls the 

burner manifold 

pressure. 
The correct pressure 

range is shown in the 

table in subsection 

Ratings

 of this manual 

on page 5. The 

pressure check should 

be made with the 

burner alight and at its 

highest setting. See 

Lighting Instructions

 

section for full operating 

details on page 30.

14

Summary of Contents for 785ILN

Page 1: ...domestic room heating appliance It must not be used for any other purposes such as drying clothes etc This appliance is suitable for installation in a bedroom or bed sitting room Manufactured by MILES...

Page 2: ...l your dealer immediately Do not try to repair the unit as you may cause an injury or damage the fireplace The information contained in this installation manual is believed to be correct at the time o...

Page 3: ...einstall 15 Ceramic Panels Installation 15 Ceramic Logs Installation 16 Window Refitting 18 Remote Control Initial Set up 19 Operation Check Aeration Settings Adjustment 20 Side Shrouds Installation 2...

Page 4: ...ration Due to the high temperature the appliance should be LOCATED out of traffic areas and away from furniture and draperies Clothing or flammable material SHOULD NOT BE PLACED on or near the applian...

Page 5: ...rdance with the current ANSI Z223 1 and or local codes having jurisdiction Heating value of gas in some areas is reduced to compensate for elevation consult your local gas utility to confirm For insta...

Page 6: ...appliance is NOT APPROVED for installation with a zero clearance kit 785IL fireplace Chimney Terminal Cap Flashing 2 x 3 approved flex chimney liners running full length Existing unaltered functioning...

Page 7: ...fan power cord outlet 6 1 9 m Fan power cord Trim sold separately Valve access panel X Y Dimensions Cavity Check that masonry step does not interfere with install dimensions or vent pipe If mantel is...

Page 8: ...ls that bear the UL mark for zero 0 fire rating Sidewall Clearances Minimum distance from side of appliance liner box to combustible wall 9 229 mm Mantel Projection A 1 25 mm 4 101 mm 8 203 mm 14 355...

Page 9: ...rbed airflow hits the outside vent terminal from any direction Check local codes for allowable vertical vent termination Venting Table Maximum vertical height 40 ft measured to bottom of termination M...

Page 10: ...inserting the 785IL into an existing fireplace cavity Generally no modifications are allowed to the existing fireplace that will compromise the integrity of the existing fireplace Components that are...

Page 11: ...ccess hole of 1 5 inch 38 mm or less through the lower sides or bottom of the firebox The access hole must be plugged with non combustible insulation after the gas supply line has been installed See D...

Page 12: ...e installed before the appliance is fitted into the cavity Refer to instructions provided with the 795CFK to install the fan Window Removal The window is held in place by a spring loaded lever on each...

Page 13: ...owards the back of the firebox 3 Apply RTV sealant to the collars on the vent slider and fit the two liners ensuring that the exhaust liner is connected to the identified EXHAUST vent collar Secure wi...

Page 14: ...g its equipment shut off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1 2 psi 3 5 kPa Failure to either disconnect or isolate the appliance...

Page 15: ...Rotate the anchor back down to hold the panel The ceramic panels can be installed without removing the burner However you can remove the burner for additional space if desired 1 Remove the 2 screws f...

Page 16: ...ating its right hand end over the key in the ember bed Slide the log back until it rests against the vertical sheet metal edge 2 Place the left hand middle log in front of the rear log locating it ove...

Page 17: ...e the right hand base log locating its notch on the key in the ember bed as indicated 6 Place the right hand middle log locating its notch on the key in the ember bed as indicated 7 Place the left han...

Page 18: ...and release it to ensure the springs return it 4 Apply light hand pressure against the window frame sides to bed in the window seal Window frame Bottom railing Ceramic Logs Installation 8 Place the r...

Page 19: ...x Place the battery box upside on the left of the firebox Battery box connection Reset button Battery box Remove cover Connect battery box to wire 5 With a sharp object press and hold the receiver s r...

Page 20: ...low the unit to warm up for 10 15 minutes to evaluate the flame picture Burners are equipped with an adjustable shutter to control primary aeration See the figures below The shutters are factory set t...

Page 21: ...th the kit See the diagram below for required hardware and configurations Note that the holder can be installed at the base of a light switch plate IMPORTANT The location of the remote control handset...

Page 22: ...ength of the glass An emulsion type cleaner is recommended Use a soft damp cloth to apply the cleaner Dry the glass with a soft dry preferably cotton cloth Most paper towels and synthetic materials ar...

Page 23: ...and one 9 V alkaline battery for its handset Batteries should last one to two seasons depending on usage Removing the batteries in the off season will extend the battery life Should the batteries loo...

Page 24: ...from the remote handset and turn off the gas valve using the manual ON OFF switch Pilot Automatic Shut off The remote control system is equipped with safety features allowing it to shut the fire down...

Page 25: ...ng your fireplace OFF 1 Press the small flame button to reduce the flame to pilot 2 Press the OFF button to turn the pilot off Alternately you can press the O button on the switch if you won t use you...

Page 26: ...ically adjusted to achieve the Daytime set temperature temp TEMP MODE Nighttime Setback Temperature Mode appliance must be in Standby mode pilot ignited The room temperature is measured and compared t...

Page 27: ...perature control to turn off decrease the temp MODE setting until appears on the display Your fireplace will reach the set temperatures and the remote handset will check the temperature every five min...

Page 28: ...hen briefly press SET to P1 and set the stop time in the same manner you just set P1 4 Briefly press the SET button again for the next burner cycle time which will be P2 and P2 5 Once all four times a...

Page 29: ...etail stores carrying safety products for children Automatic Turn Down No communication If there is no transmission from the handset to the receiver within a 6 hour period the appliance will go to Sta...

Page 30: ...f you smell gas STOP Follow B in the safety information above on this label If you don t smell gas go to the next step 3 AUTOMATIC IGNITION g 1 Locate the pilot g 3 inside of rebox at Left Hand side O...

Page 31: ...Wiring Diagram Remote Battery Box Optional Fan 795CFK Control Module Optional Wall Switch Kit 1265WSK Latching Solenoid Valve Red Yellow 4 AA Batteries GV60 Wiring Diagram Connector 31...

Page 32: ...nector 46DVA ADF Co axial to Co linear Adapter 46DVA GCL TM 4CAA Co linear to Co axial Adapter 46DVA GK TM 4CTA Aluminum Flexible Liner 3 diameter 2280 Series 3 ACFL NOTE 2 ply liner approved to CAN U...

Page 33: ...or air from other household equipment or appliances iii Damage due to chemicals dampness condensation or sulphur in the fuel supply lines which exceeds industry standards i This warranty does not cove...

Page 34: ...le 4000061 34 Pilot Injector 51 NG 4000735 Pilot Injector 30 LPG 4000736 35 Pilot Tube 4000732 36 Pilot Hood 2 Flame 4000730 37 Extended Nut 4001855 Code Description Part Number 38 Electrode 4001856 3...

Page 35: ...Left side panel a Ledgestone 4002365 b Enamel black 4002371EB c Ceramic fluted black 4002377 d Valor red brick 4002382 64 Right side panel a Ledgestone 4002366 b Enamel black 4002372EB c Ceramic flute...

Page 36: ...Spare Parts 43 44 45 46 47 48 49 50 60 61 62 63 64 51 58 59 57 56 55 54 53 52 1 2 3 7 8 9 10 12 14 15 13 11 16 24 23 25 26 26a 17 18 19 19 21 22 20 32 38 42 F R 40 41 27 28 30 29 31 9 39 36...

Page 37: ...NG natural gas LPG propane Serial No Front Trim code description e g 790FTV Floating Trim Kit Vintage Iron Purchase date mm dd yyyy Home Owner Name Address City Province State Postal Code Zip Phone E...

Page 38: ...Product Postage needed Were you given all documentation and manuals for your product YES NO Miles Industries Ltd 190 2255 Dollarton Highway North Vancouver BC V7H 3B1 Canada Fold here Online Warranty...

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