Gas Train and
Wiring Supplement
For702GAS, 702G/O,
702GAS (Mass Code), 702G/O (Mass Code),
Ventless Train
Use with Instruction Manuals MN702G and MN702G/O
126 Bailey Rd North Haven, CT 06473Ph 203-680-9401 Fx 203-680-9403
Tech Support 800-989-2275 carlincombustion.com© Copyright 2016 — Carlin Combustion Technology, Inc.
Car l in Combustion Technology, Inc.
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702GAS / 702G/O Gas TrainNote: Parts may not be exactly as shown in diagram.
702GAS / 702G/O Gas Train Parts List
ITEM PART NO. DESCRIPTION
702G
as
702G
/O
173007S Orifice nipple assembly Natural Gas • •
73007AS Orifice nipple assembly Propane Gas • •
2 98523S Pilot Gas valve 120 volt • •
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99455S Manual Gas Shutoff 3/4" NPT • •
99225S Manual Gas Shutoff 1" NPT • •
99245S Manual Gas Shutoff 1-1/4" NPT • •
99246S Manual Gas Shutoff 1-1/2" NPT • •
99926S Manual Gas Shutoff 2" NPT • •
4 99235S High gas pressure switch • •
5 99234S Low Gas pressure switch • •
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99227S Primary Gas Valve, Honeywell 48A 2169 1" NPT w/ bleed restrictor • •
99434S Primary Gas Valve, Honeywell 48A 2177 1-1/4" NPT w/ bleed restrictor • •
99434AS Primary Gas Valve, Honeywell V48A 2185 1-1/2" NPT w/ bleed restrictor • •
99434BS Primary Gas Valve, Honeywell 48A 2243 2" NPT w/ bleed restrictor
ITEM PART NO. DESCRIPTION
702G
as
702G
/O7
99229S Secondary Gas Valve Honeywell V4295A 1031 – 1" NPT • •
99435S Secondary Gas Valve Honeywell V4295A 1049 – 1-1/4" NPT • •
99435AS Secondary Gas Valve Honeywell V4295A 1056 – 1-1/2" NPT • •
99435BS Secondary Gas Valve Honeywell V4295A 1064 – 2" NPT • •
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99233S Gas Pressure Regulator 1" NPT Maxitrol RV-61 • •
99432S Gas Pressure Regulator 1-1/4" NPT Maxitrol RV-81 • •
99432AS Gas Pressure Regulator 1-1/2" NPT Maxitrol RV-81 • •
99432BS Gas Pressure Regulator 2" NPT Maxitrol RV-91 • •
9 99533S Butterfly valve and crank arm – Eclipse 4BV-A, 1" NPT • •
MN702GAS 100316 3
Wiring diagram – 702GAS burner with Honeywell RM7895C or RM7897C primary control
Standard Commercial Gas Train 120V
Mass Code Commercial Gas Train 120VThe 702G/O burner, configured for Massa-chusetts Code compliance, differs from the standard 702G/O in:1 Low and high gas pressure switches
are added to the gas train.2 Jumper JR2 on the primary control
is cut, causing the control to be non-recycling
4 MN702GAS 100316
Wiring diagram – 702G/O burner with Honeywell RM7895C or RM7897C primary control
Standard Commercial Gas Train 120V
Mass Code Commercial Gas Train 120VThe 702G/O burner, configured for Massa-chusetts Code compliance, differs from the standard 702G/O in:1 Low and high gas pressure switches
are added to the gas train.2 Jumper JR2 on the primary control
is cut, causing the control to be non-recycling
702GAS / 702G/O Ventless Gas TrainNote: Parts may not be exactly as shown in diagram.
702GAS / 702G/O Ventless Gas Train Parts List
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ITEM PART NO. DESCRIPTION QTY
1 99223 Ball valve 2
2 51161C Double valve body (Siemens) 1
3 51162A 1” NPT flange (Siemens) 2
4 99234 Lo pressure switch 1
5 99235 Hi pressure switch 1
ITEM PART NO. DESCRIPTION QTY
6 51160 Ssov actuator (Siemens) 1
7 51143 Pressure regulating SSOV actuator (Siemens) 1
8 98523S Gas valve 3/4”, HWVR4305M4540/b 1
9* 51206 Vent restricting orifice (Siemens model AGA25.2) 1
*Must be used whenever outside venting is not installed.
Wiring diagram — 702GAS and 702G/O Burner with Ventless Commercial Gas TrainVentless Commercial Gas Train 120V
6 MN702GAS 042717