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Fig. 32 Aeration shutters

 

 

 

7.9. Operation checks 

7.9.1. System pressure check 

The appliance is pre-set to give the correct heat input with the gas for which it is 

designed. 

The burner manifold pressure is controlled by a built-in non-adjustable regulator. 

The gas supply pressure to the appliance inlet and the manifold pressure must be 

between the figures shown in section 3.2. 

The manifold pressure should be checked at the pressure test point which is located 

on a “T” piece between the control valve and the burner selector knob.  The 

pressure check should be made with both burners alight and the thermostat at its 

highest setting. 

 

7.9.2. Supply line pressure check 

    

Fig. 33 Bottom Louver Attachment (Standard fascia)

 

 

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 (3.5kPa).  The appliance must be isolated from 

the gas supply piping system by closing its individual manual shut off valve 

during any pressure testing of the gas supply piping system at test pressures 

equal to or less than 1/2 psig (3.5kPa).

 

7.9.3.  Burner operation check 

Check ignition, pilot stability, burner selection control, burner flames and the 

full range of the thermostat using the rotary switch inside the appliance and 

all other controls (appliance rocker switch, remote hand unit). See owner’s 

lighting instructions further on in this manual for full details. 

   

      

 

Fig. 34 Inner front unit attachment  

 

  (Standard fascia)

 

7.9.4. Aeration adjustment 

On natural gas appliances (Model 737XN) both front and rear burners are equipped with 

adjustable shutters to control primary aeration.  The air holes are at the right side of the front and 

rear burner rails - See fig  32. The shutters can slide to the right to reduce the air supply or to the 

left to increase it. 

The appliance is supplied with the shutters set to suit the vast majority of installations. No 

adjustment should usually be necessary.  However, in certain installations (e.g. Low Btu value gas, 

high altitude) it may be necessary to adjust the shutter position of one or both of the burners to 

obtain the optimal visual effect. 

Aeration is not adjustable on Propane appliances (Model #737XP) 

 

7.10. Fascia installation 

7.10.1. Standard  fascia 

7.10.1.1  Hook the bottom louver unit on to the brackets near the bottom of the frame sides (see 

fig. 33). 

 

Take care not to trap any wires or thermostat parts between the frame and appliance case. 

7.10.1.2  Locate the hooks on the inner front unit into the slots at each side of the fire box. Push the inner front fully downwards  

 (fig. 

34). 

7.10.2. Cast  fascia 

7.10.2.1  Attach the bottom front casting by hooking the two steel locators at back of the 

casting over the brackets at the bottom of the front frame sides (see fig. 35). Check 

that the swing door opens and shuts correctly. 

 

Fig. 36 

7.10.2.2  Rest the upper front casting on 

the bottom casting. Then 

slightly lift the upper casting 

and attach it to the appliance 

by hooking the two steel 

locators at back of the casting 

over the brackets inside the 

top corners of the front frame 

(see fig. 36).  

 

Fig. 35 

 

 

17

Summary of Contents for 737XN

Page 1: ...Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be perfo...

Page 2: ...lace 11 7 3 Installation of gas supply 11 7 4 Switch to front frame installation 12 7 5 Optional trim installation 12 7 6 Front frame switch to appliance 14 7 7 Heat shields installation Cast front on...

Page 3: ...flammable materials a safe distance from all parts of the appliance Keep the appliance area well clear and free from combustible materials gasoline and other flammable vapors and liquids If any chang...

Page 4: ...oured green trim 4 sided Circulating fan kit 796CFK Operated by a 3 position switch the fan is designed to boost the natural convection process through the heater This may be a desirable feature depen...

Page 5: ...en installed must be electrically grounded in accordance with local codes or in the absence of local codes with the National Electrical Code ANSI NFPA 70 or the Canadian Electrical Code CSA C22 1 3 2...

Page 6: ...at the back that may need to be filled in In the USA it is mandatory that a hard surfaced non combustible hearth area must be maintained at least 16 in front of the fireplace This may be finished in...

Page 7: ...8 48 7 8 Fig 1b Clearances to combustible materials in front of enclosure opening All installations Fig 1c Combustible material enclosure For installations in USA with protected combustible floor Fig...

Page 8: ...37XN is for use with natural gas only Model 737XP is for use with propane only The supply pressure must be between the limits shown in section 3 2 of this manual The supply connection is 3 8 NPT The s...

Page 9: ...m strip 1 Right side trim strip 10 Spring fasteners 4 Bevelled outer trim kit 3 sided Additional option 777FSK 1 Outer surround top channel 2 Outer surround side channels 1 Bag of screws nuts and wash...

Page 10: ...re in a safe place 7 1 3 Check Ignition Electrode Spark The pilot burner and electrode unit is at the right end of the burner Push in the lighting knob and turn counter clockwise through the IGN posit...

Page 11: ...ccess to the connection elbow detach the log support tray by removing two screws then detach the access cover plate by removing two screws See fig 9 7 3 2 Use only new black iron or steel pipes or cop...

Page 12: ...it the switch mounting bracket to the top left side of the front frame with the bracket legs in the slot in the frame See fig 11 7 4 3 Fit the rocker switch heat shield over the switch and bracket Ali...

Page 13: ...t frame with the four nuts bolts and washers supplied fig 15 7 5 3 With 778FSK or 779FSK 2 contoured trim 7 5 3 1 Assemble the left and right side channels to the top channel using the inner and outer...

Page 14: ...on the Velcro pad in the battery compartment See fig 20 7 6 4 4Fit the 9V battery to the handset transmitter Figure 21 7 6 4 5Refit the compartment side with one screw 7 6 5 For active remote control...

Page 15: ...nstallation Cast front only 7 7 1 Fit the phial heat shield over the thermostat phial with two screws See fig 24 7 7 2 Fit the bottom front heat shield to and below the black burner box tray See fig 2...

Page 16: ...nt of the side walls fig 28 7 8 4 Install the side base bricks These bricks are left and right handed Place the side base bricks on the firebox side supports The recess in the inside edge of each bric...

Page 17: ...Fig 34 Inner front unit attachment Standard fascia 7 9 4 Aeration adjustment On natural gas appliances Model 737XN both front and rear burners are equipped with adjustable shutters to control primary...

Page 18: ...th the test Insert the match into one of the slots near the center Fig 37 The installation is satisfactory if the smoke is drawn into the appliance 7 11 5 If the smoke spills out of the slots inspect...

Page 19: ...e temperature in the room drops sufficiently keep combustible objects away from the fire 8 1 4 When first turned on the decorative flames will appear predominantly blue After approximately 15 minutes...

Page 20: ...e burner selector knob to rear only or both burners 3 Set the thermostat as far clockwise as possible 4 Turn the gas control knob clockwise to OFF NOTE The knob cannot be turned from PILOT to OFF unle...

Page 21: ...enting system should be examined by a qualified agency regularly We suggest annually Fig 39 Burner flames Fig 40 Pilot flame 8 4 Servicing All appliances use four 1 5V AA batteries for thermostat cont...

Page 22: ...Manufactured by HEATING BIRMINGHAM ENGLAND Because our policy is one of constant development and improvement details may vary slightly from those given in this publication Valor Ltd 1998 22...

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