Carlin 702GAS Скачать руководство пользователя страница 13

MN702GE  060320

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3.  Install gas piping

 

Connect from the gas supply to the burner gas train 

inlet using new, clean black iron pipe and malleable 

iron fittings only. Do not use copper, brass, cast iron 

or galvanized pipe or fittings. 

 

Provide support for gas piping. Do not rest the weight 

of the gas piping on burner gas train.

 

Provide a support for the burner gas train.

 

Apply pipe dope sparingly at all joints. Use only pipe 

dope listed for use with propane gas. Do not use pipe 

sealing tape.

 

Do not hold the gas valve with pipe wrench. Use 

crescent wrench or other smooth-jawed device. Do 

not overtighten. 

 

Failure to comply with above could result in severe 

personal injury, death or substantial property damage.

  Do  not  expose  the  gas  train  to  gas  pressure  in 

excess of 14 inches water column. Higher pressure 

could damage the valve seat, resulting in potentially 

hazardous condition. When pressure testing piping 

at higher pressures, disconnect burner from gas line 

before testing.

 

If the gas supply pressure can exceed 14 inches water 

column at any time, you must install a lockup type gas 

pressure regulator in the gas supply piping, ahead of 

the main manual gas valve installed at the burner.

Figure 5A 

Connecting gas supply piping to burner 
(shown with angled gas train)

Piping from gas meter to burner 

1.  Verify the gas train on the burner is correctly sized. The gas train pres¬sure 

drop must not be more than the gas pressure at the burner gas train en-

trance minus 3.4" w.c. (pressure required at entrance to butterfly valve). 

See Figure 6 for gas train pressure drop information. The standard gas 

train is 1 inch. 

2.  If possible, install a new gas line directly from the gas meter. If you are 

using an existing gas line, verify it is clean and in good condition, and 

verify it is large enough to handle the load of all connected appliances. 

3.  When branching from a common gas line, do not tap off from the bottom 

of horizontal sections – only from the side or top. 

4.  Install a main manual shutoff valve, sediment trap and ground joint union 

near the burner gas train connection as shown in Figure 5A. 

5.  If the burner is installed inside an appliance jacket, install the main manual 

gas valve and sediment trap external to the jacket. 

6.  Size piping (or verify size) using Table 3. You will find additional informa-

tion on gas line sizing in the National Fuel Gas Code, ANSI Z223.1. 

Gas supply pressure – natural gas or propane Maximum supply pressure: 

14 inches w.c. 
Minimum supply pressure: 5 inches w.c. 
 

Test and purge gas line 

Read WARNING above. 
Pressure test and purge the line. Pressure testing should be done by the gas 

supplier or utility, following all applicable codes.

1  Pipe to meter or branch
2  T-handle main manual gas valve
3  Use clean, burr-free black iron 

pipe and malleable iron fittings

4  Ground joint union
5  Sediment leg

6  Pressure tap, 1/4" (upstream 

shown, outlet not shown)

7  Gas regulator access screw 

(the regulator spring is located 

under the adjusting screw)

8  Gas train wire junction box

Содержание 702GAS

Страница 1: ...maintenance on back page for information regarding operation of this burner The burner Instruction Manual is intended only for your service technician The burner and heat exchanger must be inspected a...

Страница 2: ...heguidelinesbelowtoavoidpotentialsevere personal injury death or substantial property dam age Installer service technician Read all instructions before proceeding Perform all procedures and in the ord...

Страница 3: ...mply with the latest editions of Installation of Domestic Gas Conversion Burners ANSI Z21 8 National Fuel Gas Code ANSI Z223 1 NFPA 54 National Electrical Code ANSI NFPA 70 All additional applicable n...

Страница 4: ...into the burner through a manifold around the air tube The gas then circulates through a set of four orifice spuds into the air stream upstream of the retention ring The spin of the air flow at the re...

Страница 5: ...0 Btuh of all appliances in the space Do not install or operate the burner if any component is dam aged or if burner does not comply with other guidelines of this manual and the appliance manual Inspe...

Страница 6: ...u facturer s instructions Wire the switch into the appliance limit circuit to shut off the appliance burner if sustained downdraft should occur Refer to the appliance manufacturer s instruction manual...

Страница 7: ...2 Metal louvers or grilles free area area times 0 60 3 Screens when used must be no smaller than inch mesh Motorized vent dampers Wire the vent damper end switch to prevent operation of the burner un...

Страница 8: ...ications Whenfiringwithpositive overfire pressure do not exceed the pressure specified in the appliance manual Positive overfire pressure reduces maximum burner capacity See Page 3 for estimated reduc...

Страница 9: ...e a floor liner when possible The floor liner will improve firing in most applications Extend floor liner 3 to 4 inches up the side walls 4 Target wall liners Extend target wall liners at least 3 to 4...

Страница 10: ...ance opening so the end of the air tube is flush with or slightly short of the inside surface of the combustion chamber 4 Place gasket onto boiler front plate 5 Slide the end of the air tube into the...

Страница 11: ...enough ventilation to prevent overheating of the appliance burner and controls If there is risk of overheating you must install ventilation air openings sized large enough to provide air for cooling t...

Страница 12: ...e terminal strip inside the gas train J box b See the label in the burner junction box included Gas valve vent opening The V48 diaphragm gas valve is NOT fitted with a vent limiting orifice in the ven...

Страница 13: ...be more than the gas pressure at the burner gas train en trance minus 3 4 w c pressure required at entrance to butterfly valve See Figure 6 for gas train pressure drop information The standard gas tra...

Страница 14: ...990 810 690 620 2 2 750 1 900 1 520 1 300 1 150 2 4 350 3 000 2 400 2 050 1 850 Note 1 For natural gas with specific gravity other than 0 60 consult National Fuel Gas Code for correction factor PROPAN...

Страница 15: ...rmation for burner equipped with a primary control not covered in this manual see Figure 7A for a legend to callouts Turn off power to appliance when servicing burner Failure to comply could result in...

Страница 16: ...steam boiler activated Read the appliance manual for the location of the high fire control when used 3 See Figures 7 and 8 to connect the high fire control to the burner firing rate circuit 4 The burn...

Страница 17: ...nuals and wiring diagrams Gas manifold spud orifices sealed with pipe dope and tight Gas lines in good condition sized and designed correctly Gas line connections and fittings tight Burner appliance a...

Страница 18: ...et air damper linkage Table 5 Initial burner settings see the pages 18 through 22 for final adjustments using test instruments 6 Set burner initial head and damper positions continued 3 4 Determining...

Страница 19: ...e the maximum burner firing rate is reduced The firing rate is also reduced for altitudes higher than 2000 feet above sea level See page 3 for rating information 3 Adjust the burner fuel and air setti...

Страница 20: ...personal injury death or substantial property damage 3 Check the flame signal after the pilot has shut down to ensure the signal is still strong with main flame on 4 Move the burner fuel selector swi...

Страница 21: ...ly valve indicator until it is at 90 Disengage actuator motor Rotate linkage to high fire Tighten the two hex head screws while still holding the motor linkage arm in high fire Rotate linkage to low f...

Страница 22: ...ion with exhaust fans or other conditions operating 7 Adjust the burner using test instruments continued Combustion ventilation air Verify combustion ventilation air openings are not and will not be o...

Страница 23: ...s valves before disconnecting any portion of fuel lines and before cleaning or removing any parts from the burner or related equipment Burner and appliance components can be extremely hot Allow all pa...

Страница 24: ...season and to verify user is aware of proper operation and care of the burner appliance Review proper operation of the appliance burner unit with the user Turn off power to appliance Remove combustion...

Страница 25: ...Btuh Manifold gas pressure IWC High fire Low fire Inlet gas pressure IWC CO2 Gas Low Fire ______ Gas High Fire ______ Gas Low Fire ______ Gas High Fire ______ O2 Were limit controls tested Comments ab...

Страница 26: ...4 Combustion Head Assembly for 702GAS 7 4180002FS Gas Ignitor 8 35824S Motor Contactor 20 AMP R4242B1005 not shown ITEM PART NO DESCRIPTION 9 35311S C7027A1023 UV Scanner 97656S Q7800B1003 Sub Base 99...

Страница 27: ...appliance burner unit NEW PHOTO TO COME ITEM PART NO DESCRIPTION 16 35824S Motor Contactor 20 AMP R4242B1005 19 EMX51UVS EMX51UV KIT includes all of the below 35311S C7027A1023 UV Scanner 97656S Q780...

Страница 28: ...MN702GE 060320 28 10 Dimensions Figure 14 Dimensional data...

Страница 29: ...MN702GE 060320 29 10 Dimensions continued Figure 14A Dimensional data angled gas train...

Страница 30: ...and liquids Do not obstruct the flow of combustion and ventilating air Most motors currently used on residential type burners use permanently lubricated bearings and do not require field lubri cation...

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