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C-Minimum Blower Speed
(With Electric Heat)
Refer to ECH16 installation instructions for minimum alĆ
lowable blower speed when electric heat is used.
TABLE 17
ELECTRIC HEAT ONLY (EMERGENCY HEAT)
CHP16 & 20 UNIT Min. Blower Speed
208/240V Med. - High
-
,
,
460/575V Medium
208/240V Med. - High
-
460/575V Medium
208/240V High
-
,
460/575V Medium
OPTIONAL ELECTRIC HEAT
UNIT Min. Blower Speed
ALL UNITS High
BLOWER SPEED TAP SELECTION
208-230V UNITS
HARNESS CONNECTOR
DEPRESS TAB TO RELEASE WIRE
CONNECTOR. SELECT CONNECTOR
LOCATION FOR NEW SPEED. INSERT
WIRE UNTIL IT CLICKS.
RELEASE
FIGURE 20
X-MAINTENANCE
e
Potential for personal injury.
Disconnect power to unit before performing any
maintenance or service operation. Avoid contact
with sharp metallic edges.
Can cause prsonal injury or death.
CAUTION
A-Lubrication
IMPORTANT
Always relubricate motors according to manufacĆ
turer's lubrication instructions provided on each
motor. If no instructions are provided, use the folĆ
lowing as a guide:
1 - Supply Air Motor Bearings - Bearings are prelubriĆ
cated; no further lubrication is required for 10 years
of normal operation. Thereafter, oil at oiling ports
with a SAE 10W non detergent motor oil or suitable
equivalent.
3 - Condenser Fan Motor Bearings - Bearings are preĆ
lubricated. For extended bearing life, lubricate each
bearing through the oiling ports provided with a few
drops of a good grade electric motor oil or SAE10 or
SAE20 non-detergent motor oil every two years.
B-Filters
Filters should be checked monthly (or more frequently in seĆ
vere use) and cleaned or replaced regularly. Take note of
the "AIR FLOW DIRECTION" marking on the filter frame
when re-installing.
IMPORTANT
FIlters must be U.L.C certified or equivalent for
use in Canada.
1 - Clean coil, if necessary.
2 - Check connecting lines and coil for oil leaks.
3 - Check condensate drain pan and line, if necessary.
C-Condenser Coil
1 - Clean and inspect condenser coil. (May be flushed with
a water hose.)
2 - Visually inspect connecting lines and coils for evidence
of oil leaks.
IMPORTANT
If owner complains of insufficient cooling, unit
should be gauged and refrigerant charge
checked. Refer to gauge manifold attachment,
checking charge and charging sections in this inĆ
structions.
D-Electrical
1 - Check all wiring for loose connections.
2 - Check for correct voltage at unit (unit operating).
3 - Check amp-draw on both condenser fan motor and
blower motor.
Fan Motor Rating Plate ____ Actual ________
Indoor Blower Motor Rating Plate____ Actual____
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