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Model 702G/O Advanced gas/oil burners — Instruction manual
Carlin part number MN702GO Rev. 06/23/14
– 3 –
Where appliance instructions differ from this manual, follow the appliance instructions.
Burner applications
Follow all instructions in this manual, the primary control data sheet and
the appliance manual.
Verify the burner is correct for the appliance being used and for all ap-
plicable codes/standards.
Adjust the nozzle selection/firing rate if necessary due to positive overfire
pressure and/or altitudes more than 2,000 feet above sea level. See the
NOTICE under the Ratings information at right. Where appliance appli-
cation information is available, the recommended firing rate and burner
information will include appropriate adjustments for positive overfire
pressure and recommendations for high altitudes. Follow the appliance
manual guidelines when available.
Damage or shortage claims
The consignee of the shipment must file damage or shortage claims
immediately against the transportation company. See the NOTICE on
page 1 for burner carton information.
When calling or writing about the
burner:
Please provide us with the UL serial number and burner model number
to assist us in locating information. This information can be helpful when
troubleshooting or obtaining replacement parts.
Codes and standards
Certification
702G/O burners are U.L. listed for the U.S., certified to comply with:
•
ANSI/UL 296, for use with #1 or #2 heating oil (per standard ASTM D396).
•
UL 795, for use with natural gas or propane.
•
Burner labels list compliance, when required, with special local, state
or provincial approvals.
Install this burner in accordance with all local codes and
authorities having jurisdiction. Regulations of these authori-
ties take precedence over the general instructions provided
in this manual.
United States installations
Burner/appliance installations in the United States must comply with the
latest editions of:
•
Installation of Domestic Gas Conversion Burners, ANSI Z21.8.
•
National Fuel Gas Code, ANSI Z223.1/NFPA 54.
•
Standard for the Installation of Oil-Burning Equipment, NFPA 31
•
National Electrical Code, ANSI/NFPA 70.
•
All additional applicable national, state and local codes.
The 702G/O burner, configured for Massachusetts 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.
Ratings
( With 0.00” w.c. overfire pressure, altitude 2,000 feet max.; see NOTICE
below)
Oil Input
................................................................High fire: 6.0 to 11.2 GPH
................................................................. Low fire: 3.5 to 6.5 GPH
Gas Input
............................................................ High fire: 840 to 1,600 MBH
............................................................... Low fire: 490 to 940 MBH
Fuels
......................................................................No. 1 or No. 2 Fuel oil
....................................................................Natural gas or propane
Fuel unit & oil valves:
................Fuel unit,
2-
stage
, 300
psig
(with internal blocking valve)
..................................................................... (2) Oil solenoid valves
Gas train:
(available in straight or angled configuration)
............................(2) Main gas valves & RV-61 or RV-81 regulator
............................................ Butterfly gas valve for input regulation
................ 1" gas train standard; 1¼", 1½" or 2" gas train available
Electrical
Power ............................................................. 120V/60 Hz/1-Phase
Limit circuit input (RM7895C or RM7897C) ..............120 vac/60 hz
Control circuit load (120 vac) .............................................
1.2
amps
Motor ...................................
1/2
hp
, 3450
rpm
, 48-
frame
, “N”
flaNge
..............................
115 / 208-230
vac
/60
hz
/1-
ph
, 8.4 / 3.8-4.2
amps
Oil valve/gas valve power ..........................................
120
vac
/60
hz
Damper motor (with end switch) .........................
h
oNeywell
m436a
Ignition & primary control
.............................Carlin Model 41000 solid state electronic ignitor
Ignition voltage ............................................................. 14,000 volts
Primary control ...............................................Honeywell RM7897C
Agencies
.................................................................................UL Listed (US)
Reduce nozzle/firing rate when required — Maximum burner
capacity is reduced when overfire pressure is positive and for
altitudes above 2,000 feet. See below, and adjust firing rate/
nozzle selection if necessary.
702G/O — Maximum firing rate for
positive overfire pressure and high altitude
Overfire pressure
(Inches w.c.)
Oil – GPH
Gas – MBH
0.00
11.2
1,600
0.10
10.9
1,530
0.20
10.7
1,500
0.30
10.6
1,480
0.40
10.3
1,440
0.50
10.2
1,430
0.60
9.9
1,390
Altitudes:
For altitudes more than 2,000 feet above sea level, reduce the above
capacities an additional 4% per 1,000 feet higher than 2,000 feet
above sea level.
General information