Carlin 301CRD - Manual (Page 16)

Model 201CRD & 301CRD 240-VAC Advanced oil burners — Instruction manual
Carlin part number MN2301A Rev. 10/21/10
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Wire burner — 50240 primary control
1. All wiring must comply with:
• In the U.S — the National Electrical Code, ANSI Z223.1/NFPA 54.
• In Canada — the Canadian Electrical Code Part 1, CSA standard C22.1.
• All applicable local codes/standards.
2. Wire the burner following Figure 20 and any special instructions or wiring
diagram provided with the appliance, burner or other components.
3. The burner requires a 240 VAC/60 hz/single-phase power supply, with a 5-amp
fuse. The current draw (equipped with Carlin PSC motor) will be approximately
1.6 amps.
4. The 50240 thermostat terminals provide a 200ma for thermostat power source.
Never apply external power to these terminals under any circumstances. To
avoid this problem when using zone valves, disconnect fi eld wires from 50240
thermostat terminals. Then connect a voltmeter across terminals. Operate all
zones and verify that there is never a voltage reading at the meter. A voltage
reading indicates incorrect wiring that must be corrected before attempting to
operate the burner.
5. Alarm terminals provide a 24 vac-rated dry contact, suitable for use with
security/fi re alarm systems such as Carlin SecureHeat™.
6. Make sure the burner and appliance are correctly wired and the line switch is
properly fused for the load.
To start burner
Do not start the burner if the combustion chamber contains
oil or oil vapor.
1. Turn service switch OFF.
2. Perform inspections and checkouts on pages 18 and 19.
3. Slip one end of a 3/16-inch I.D. clear plastic hose over end of bleed valve, the
other end into a container. Then open bleed valve.
4. Set thermostat (operating controls) to call for heat.
5. Turn service switch ON.
6. Bleed oil line until plastic line is free of bubbles; then another 15 seconds longer.
(Should the primary control timing cause a lockout during purging, restart the
burner following the primary control data sheet instructions.)
7. Close bleed valve. The burner should cycle through the sequence given in the
primary control data sheet.
8. Perform primary control fl ame failure lockout and safety timing tests per instruc-
tions in primary control data sheet.
9. Should control/burner fail to operate correctly, see page 19 for suggestions in
troubleshooting.
4. Wire burner • start burner — 50240 primary control
Figure 20 201CRD and 301CRD burners wiring using Carlin 50240 primary control (see appliance manual or separate wiring information
for burner equipped with a primary control not covered in this manual)
Turn off power to appliance when servicing burner. Failure to comply could result in severe personal injury, death or substantial property damage.