CCI Thermal Technologies CR1 - Trito Corrosion-Resistant Washdown Unit Heater - Manual (Page 2)

1. Read and follow all instructions in this manual.
2.
Heater is not to be used in hazardous atmospheres where
flammable vapors, gases, liquids or other combustible
atmospheres are present.
3. Heater is to be connected and serviced only by a
qualified electrician.
4. Installation and wiring of the heater must adhere to all
applicable codes.
5. Before opening any enclosures, disconnect the heater
from the power supply. Lock the switch in the “OFF”
position and/or tag the switch to prevent unexpected
power application.
6. The heater is not to be operated with the high-limit
disconnected from the control circuit.
7. The heater is not to be operated if the bulb or capillary
of the high-limit is damaged.
8. Do not operate the heater in atmosphere corrosive to
type 304 stainless steel.
9. Elements get hot during operation. Contact can cause
burns.
10. Use factory replacement parts only.
11. Maximum ambient operating temperature is 40°C
(104°F).
12. Type 4X conduits must be used for field connection in
order to maintain watertightness of the enclosure.
13. Do not operate the heater with the louvers deformed
from their factory preset positions.
14. Wash with water pressure less than 70 psi.
15. Complies with U.S. Coast Guard regulations only when
indicated on heater data plate and when the discharge
grill directs airflow downward.
16. If there are any questions or concerns regarding the
heater, please refer to contact info on page 10.
WARNING:
Disconnect heater from the power supply before opening enclosures, washing or servicing heater.
Lock the switch in the “OFF” (open) position and/or tag the switch to prevent unexpected power application.
This heater should only be serviced by qualified personnel with electrical heating equipment experience.
– 2 –
HEATER MAINTENANCE CHECKLIST
Heater Model: ____________________________ Serial No.: ______________________________
Date of Maintenance: ______________________ Maintenance Done By: ____________________
Comments: ________________________________________________________________________
________________________________________________________________________
PERIODIC (before and as required during heating season)
ANNUAL (before heating season)
IMPORTANT NOTICES
WARNING:
Read and adhere to the following. Failure to do so may result in severe or fatal injury.
2. MECHANICAL
❑ Check for leakage inside the control enclosure. The
electrical enclosure should be dry inside.
❑ Check enclosure seal. Seal should be free of nicks and
cuts.
❑ Check motor shaft bearing play. Replace motor if play
is excessive, or if motor does not run quietly and
smoothly. Bearings are permanently lubricated.
❑ Check fan. Replace immediately if cracked or
damaged.
❑ Check high-limit bulb and capillary. Replace
immediately if damaged.
❑ Check tightness of all hardware. All fasteners must be
tight.
❑ Turn heater on for a minimum of five minutes. Check
for warm air exiting heater through discharge grill.
1. CLEAN (Use water pressure less than 70 psi)
❑ Finned Elements ❑ Motor ❑ Fan
❑ Discharge Grill ❑ Inlet Grill
2. CHECK
❑ All watertight seals for condition and tightness
❑ Motor for smooth, quiet operation
1. ELECTRICAL
❑ Check all terminal connections and conductors.
Tighten loose connections. Conductors with
damaged insulation must be replaced.
❑ Inspect contactor contacts. If badly pitted,
burned or welded shut, replace with factory-
supplied contactor.
❑ Check all watertight fittings. Replace damaged
seals with factory supplied seals.
❑ Check electrical resistance on all load side legs.
Reading should be balanced (±5%).
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for reuse.