1
701CRD/801CRD
Oil Burners
Installation and
Operating Instructions
For Use By Qualified Service Technicians Only
DESCRIPTION
“CRD” burners feature a combustion head incorporating a
design concept which provides a means to control the air
pattern to match the nozzle requirements. The aerodynam-
ics for optimum combustion are easily adjusted for any
nozzle size without changing the air-handling hardware.
The flame front is initiated inside the airtube so that no er-
ratic recirculating gases from the main chamber area can
quench the flame at the retention ring.
The letters “CRD” stand for “Controlled Retention–Double
Speed.” Carlin Models 70lCRD and 80lCRD, for use with
No. 2 fuel oil, are low-high-low-off (step modulating) high
speed flame retention burners. Oil flow–rate is step-modu-
lated by the use of two oil valves and two nozzles. Com-
bustion air is controlled by a damper motor. It’s end-switch
energizes the second stage valve as the air shutter ap-
proaches a wide open position.
Due to the low-high-low feature of these burners they are
very versatile and efficient:
1. They can operate in forced draft boilers or furnaces at
pressures up to 0.50 inches W.C.
2. They will save typically. 20% in seasonal fuel consump-
tion compared to conventional single-stage flame reten-
tion burners.
3. They can operate with or without refractory lined com-
bustion chambers.
4. They are superior for process applications.
5. They can be installed through fire door openings.
It is important that the installation of the oil burner,
piping and fittings, safety devices, controls, electrical
wiring and equipment be done in accordance with
national and/or local regulations of the authorities
having jurisdiction over such installation.
126 Bailey Rd
North Haven, CT 06473
Ph 203-680-9401
Fx 203-680-9403
Tech Support 800-989-2275
carlincombustion.com
©
Copyright 2017 — Carlin Combustion Technology, Inc.
Carlin Combustion Technology, Inc.
701CRD
801CRD
