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Initial start-up of the unit by trained, experienced personnel, is
usually the responsibility of the installing contractor. This start-
up consists of inspecting and operating the equipment for all
functions at the time of initial installation, and making neces-
sary adjustments. It also includes demonstrating its proper
operation to the owner or the owners' agent. Note that, unless
otherwise specifically agreed to in writing, the manufacturer
includes no field labor, start-up service or the like in the price
of its equipment. After the equipment leaves the factory, it
may become damaged or maladjusted during transportation
or on the job. Sometimes wires are disconnected acciden-
tally, or fan motors move on their bases due to rough han-
dling, causing fans to strike. Correcting such conditions is part
of start-up. Dip switch settings from factory are all OFF ex-
cept #8 of 8 and #3 of 4. Any switch changes must be acti-
vated by unplugging and plugging in the power cord.
Note: There are various time delays built into the system
when using the unit or wall mounted control pad. Most of
these delays are only for a few seconds, but they can be
up to four minutes. The compressor will delay for two min-
utes before it can be restarted on both the control pad
and remote thermostat. The compressor will run for 90
seconds minimum unless mode is changed. The fan runs
for 15 seconds after the electric heater turns off. The unit
will always start up with random time delay.
1. Chassis with separate power cord has a universal electric
heater. The power cord selected determines the Kw out-
put. Make sure you have the right cord for the heater Kw
required by the owner. See Table 2 below.
Table 2. Power Cord / Heater Kw Selection
Heater
Unit
Vendor
Kw
Voltage
Number
(1)
0
208
105575502
0
(1)
230
105575502
(1)
0
265
105575804
1.5
208
105575501
1.9
230
105575501
1.9
265
105575802
2.3
208
105575601
2.8
230
105575601
2.8
265
105575801
3.8
(2)
208
105575703
4.7
(2)
230
105575703
4.7
(2)
265
105575803
(1)
Cooling Only
(2)
Unit Size 12 and 15 only
208/230V chassis with factory installed power cord, has a
2.9/3.5 Kw heater and must connect to a 20 amp circuit.
2. Make certain the chassis power cord is plugged into a
receptacle with the correct voltage and fuse protection
required by the unit data plate. See IM 714 (ships with the
power cord) for more detail about the power cord and re-
ceptacle. Coil up any excess cord length and stow it un-
der the control box.
3. Open or close the ventilation damper door as required by
the owner. The actuator is located at the lower left end of
the chassis. See Figure 15.
Note: Remove shipping screw from door if it needs to be
opened.
4. If the conditioner will use the standard control pad
that ships with the unit, continue to step 5. If a remote
thermostat will be used rather than the control pad, skip
over steps 5 through 17 and continue with step 18.
Equipment Start-up
Plug Size
Unit Fuse
(3)
(amps)
Size (amps)
15
15
15
15
20
15
15
15
15
15
20
15
20
15
20
20
20
15
30
25
30
30
20
25
(3)
Molded on power cord receptacle
5. If the control pad is being remote mounted, unsnap the
control from its mounting bracket on the unit, unplug it
and mount it on the wall. Be sure to plug in the 6 wire
cable that connects it to the unit mounted control box.
Snap on the decorative cover that replaces the control
pad at the unit. See pages 5 and 8 for more information.
Dip switch #2 of 4 on front of control box, should be ON.
Note: If upon initial power up, the digital temperature dis-
play reads between 16
o
and 30
cord and plug it back in again to reset for Fahrenheit (60-
85
o
).
6. Test HEAT by selecting the heat mode and increasing the
temperature setting until the unit is discharging heated air.
Note: Initial electric heater activation may result in
slight burning odor. It is recommended to run heater
at time of installation several minutes until any odor
dissipates. To activate electric heaters on heat pump
models, select a unit temperature several degrees
above room temperature.
7. Test COOL by selecting the cooling mode and decreasing
the temperature setting until the discharge air is cold.
8. Test FAN by selecting the fan mode and increasing the
temperature setting to 85
Lower the setting to 60
9. Test COOL/DRY by selecting the COOL mode. With indi-
cator light in COOL, press and hold the Mode key for 15
seconds until light switches to COOL/DRY. Then decrease
the temperature setting until the discharge air is cold.
Switch back to COOL by again pressing the Mode key for
15 seconds.
10. Test fan AUTO/HIGH/LOW as follows: With the unit in ei-
ther HEAT, or COOL mode, switch back and forth between
AUTO, HIGH and LOW speed, using the FAN key on the
control pad. The sound level between HIGH and LOW will
be noticeable and shown by indicator light. AUTO gives
Low fan if temperature setting is within 2
perature and High fan if more than 2
perature.
11. Test the CONTINUOUS/CYCLE fan by selecting HEAT or
COOL mode and raising or lowering the temperature set
point. With dip switch #5 OFF, the indoor fan will continue
to run regardless of whether the unit is calling for heating/
cooling or not. With dip switch #8 ON, the indoor fan will
only run during "heat demand" and will run continuous
while unit calls for heat/cool and be OFF 7 minutes and
ON 2 minutes if unit is not heating/cooling. We recom-
mend leaving dip switch #8 ON to conserve energy.
12. ROOM FREEZE PROTECTION – If the owner wants this
o
o
feature (40
-50
F minimum room temperature), leave dip
switch #4 of 4 OFF. To test, place the room temperature
sensor in ice water and the heat will come on regardless of
the control mode or temperature settings.
13. WIRED REMOTE ON/OFF – If this feature is being used,
connect the two low voltage wires, coming from the re-
mote dry contacts, to the CN3 receptacle inside of the 2˝
x 3˝ electrical cover on front of the control box. Use the
small plug and wire assembly provided.
o
(Celsius), unplug the power
o
F. There should be no heat.
o
F. There should be no cooling.
o
F of room tem-
o
F from room tem-
IM 812 / Page 15 of 24
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