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Instructions for Installation of Oil
Furnace Circulating Fan Upgrade Kits
CHB68-112
: Failure to follow these instructions exactly may result in a fire or
explosion causing property damage, personal injury or loss of life.
DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of
this or any other appliance.
What to do if you find an oil leak:
DO NOT try to operate this appliance.
If possible, close the manual fuel shutoff valve on the oil supply tank.
Immediately call your oil supplier. Follow the oil supplier's instructions.
If you cannot reach your oil supplier, call the fire department.
A qualified installer, service agency, or the oil supplier must perform installation and
service.
These instructions should be:
read prior to installation.
retained for qualified service personnel
reviewed before performing any service or maintenance.
XX-XXX
ECNXXXX
For Furnace Models:
CHC68-96
Crown Boiler Company
3633 "I" Street
Philadelphia, Pennsylvania 19134
CLBF68-112
CLBR68-112
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Summary of Contents for Crown Boiler CHB68-112
- Page 1 A qualified installer, service agency, or the oil supplier must perform installation and service. These instructions should be: read prior to installation. retained for qualified service personnel reviewed before performing any service or maintenance. Crown Boiler Company 3633 “I” Street Philadelphia, Pennsylvania 19134 XX-XXX ECNXXXX...
- Page 2 Only qualified service personnel shall perform installation and service. Introduction: These instructions list the steps required to field install a larger centrifugal blower and ¾ HP motor assembly in any of the Crown oil-fired furnace models previously noted. A blower upgrade kit will produce an increase in high-speed airflow to enable the furnace to support an evaporator coil capable of producing approximately four (4) tons of direct expansion cooling.
- Page 3 Only qualified service personnel shall perform installation and service. On highboy models, this panel will be the lower access panel on the front of the furnace. ! On lowboy models, remove the access panel at the rear of the furnace to reach the blower.
- Page 4 Only qualified service personnel shall perform installation and service. (Show depiction here of horizontal / counterflow blower compartment, blower assy., retaining screws, mounting angles, and auxiliary high limit thermostat. ID components.) Figure 3: Blower Assembly Retaining Screw Locations on the Horizontal / Counterflow Oil Furnace 5.
- Page 5 Only qualified service personnel shall perform installation and service. B. Install the Upgrade Blower / Motor Assembly ! CAUTION: On horizontal / counterflow models, if the auxiliary high limit thermostat was removed from the furnace (in Step A5, above), reuse the original fasteners to reattach the thermostat to the blower support panel in the original mounting position AFTER installing the upgrade blower.
- Page 6 Only qualified service personnel shall perform installation and service. 3. Reconnect the three (3) furnace wiring harness leads to the terminal block located on the blower scroll. For all furnace models: Connect the red wire (cooling fan speed) to the terminal block labeled “H”. Temporarily, connect the orange wire (heating fan speed) to the terminal block labeled “L”.