33
The SpacePak system has been designed to provide years of
trouble-free performance in normal installations. Examination
by the homeowner at the beginning of each cooling season,
and in mid-season should assure continued, good
performance. In addition, the system should be examined by
a qualified service professional at least once every year.
BEFORE EACH COOLING SEASON
1. Check and clean air filter. The air filter is permanent type.
Remove and clean thoroughly with soap solution and water.
Turn off electrical power supply before
servicing. Contact with live electric
components can cause shock or death.
2. Check fan coil unit. Turn off unit power disconnect
switch and remove service access panels.
a. Inspect evaporator coil and blower wheel for build-
up of dust and dirt. Clean with solvent and/ or
water as necessary.
b. Replace service access panels and turn on unit
power disconnect switch.
3. Check that unit condensate drain is clear and free
running, and plug is in cleanout.
SECTION 4: MAINTENANCE
4. For outdoor condensing unit, follow manufacturer’s
maintenance instructions.
5. Follow “System Start-Up & Adjustments” procedures
in Section 3 of this manual.
IF SYSTEM FAILS TO OPERATE
1. Check that thermostat switch is set for proper mode
of operation and is set below room temperature.
2. Check that outdoor unit is operating.
a. Confirm that compressor and fan are operating
properly.
b. Confirm voltages to outdoor unit.
IF FAN AND COMPRESSOR AT OUTDOOR
UNIT ARE NOT RUNNING
1. Check Fault Indicator. See Flash Codes, page 19.
Float switch fault will stop fan and compressor.
2. Check for tripped circuit breaker or blown fuse at either
the main fuse box or at unit disconnect box on or near
the condensing unit. Replace blown fuse with same
size and type.
3. Review Troubleshooting Guide beginning on page 34
of this manual.
FIGURE 3.2
*For a room with more than two (2) terminals, combinations of the
above may be used to achieve the desired fractional number.
2" SUPPLY TUBING LENGTH ADJUSTMENT FACTOR CHART
RUN 6' 8' 10' 12' 15' 20' 25' 30'
FACTOR 1.18 1.14 1.11 1.06 1.0 .9 .8 .66
DESIRED NUMBER
OF TERMINALS*
.5
.65
.85
1.00
1.15
1.30
1.50
1.65
1.70
1.80
1.85
1.95
2.00
TERMINAL - ORIFICE
COMBINATION
(1) .5
(1) .35
(1) .15
(1)
(1) .5 + (1) .35
(2) .35
(1) .35 + (1) .15 or (1) + (1) .5 or (3) .5
(1) + (1) .35 or (2) .5 + (1) .35
(2) .15
(2) .35 + (1) .5
(1) + (1) .15
(3) .35
(2)
C. Supply Tubing Length: An outlet with a supply tubing
length of 15 feet is considered one, fully opened outlet.
For other lengths refer to Figure 3.3 for adjustment
factors.
FIGURE 3.3
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