31
WARRANTY MAY BE JEOPARDIZED IF ALUMINUM WIRE IS CONNECTED TO
UNIT CONTACTOR.
Special instructions apply for power wiring with aluminum conductors: Warranty
is void if connections are not made per instructions.
Attach a length (6” or more) of recommended size copper wire to the unit contactor ter-
minals L1, L2 and L3 for three phase.
Select the equivalent aluminum wire size from the tabulation below:
Splice copper wire pigtails to aluminum wire with U.L. recognized connectors for copper-
aluminum splices. Please exercise the following instructions very carefully to obtain a
positive and lasting connection:
1. Strip insulation from aluminum conductor.
2. Coat the stripped end of the aluminum wire with the recommended inhibitor, and
wire brush the aluminum surface through inhibitor. INHIBITORS: Brundy-Pentex “A”;
Alcoa-No. 2EJC; T & B-KPOR Shield.
3. Clean and recoat aluminum conductor with inhibitor.
4. Make the splice using the above listed wire nuts or split bolt connectors.
5. Coat the entire connection with inhibitor and wrap with electrical insulating tape.
B. HOOK-UP
To wire unit, refer to the following hook-up diagram.
Refer to Figures 2 and 17 for location of wiring entrances.
Wiring to be done in the field between the unit and devices not attached to the unit, or
between separate devices which are field installed and located, shall conform with the
temperature limitation for Type T wire [63°F rise (35°C)] when installed in accordance
with the manufacturer’s instructions.
C. INTERNAL WIRING
A diagram of the internal wiring of this unit is located on the inside of control access panel
and in this manual. If any of the original wire as supplied with the appliance must be
replaced, the wire gauge and insulation must be same as original wiring.
Transformer is factory wired for 230 volts on 208/230 volt models and must be changed for
208 volt applications. See unit wiring diagram for 208 volt wiring.
D. THERMOSTAT
The room thermostat must be compatible with the spark ignition control on the unit.
Generally, all thermostats that are not of the “current robbing” type are compatible with the
integrated furnace control. The low voltage wiring should be sized as shown in Table 1.
TABLE 5
COPPER
WIRE SIZE—AWG
SUPPLY WIRE LENGTH—FEET
50
100
150
200
250
300
20
10
8
6
4
4
4
25
10
8
6
4
4
3
30
8
6
4
4
3
2
35
8
6
4
3
2
1
40
8
6
4
3
2
1
45
8
4
3
2
1
1/0
50
6
4
3
2
1
1/0
60
6
4
2
1
1/0
2/0
70
4
3
2
1/0
2/0
3/0
80
4
3
1
1/0
2/0
3/0
90
3
2
1/0
2/0
3/0
4/0
100
3
2
1/0
2/0
3/0
4/0
110
2
1
2/0
3/0
4/0
250
125
1
1
2/0
3/0
4/0
25
UNIT
MCA
FIGURE 16
RECOMMENDED BRANCH CIRCUIT
DISCONNECT LOCATION
ST-A1111-03
Summary of Contents for RKKL Series
Page 9: ...9 Illustration ST A0801 17 I FIGURE 6 ROOFCURB INSTALLATION FIGURE 5 ST A1154 02 00...
Page 41: ...41 TABLE 9 AIR FLOW PERFORMANCE 12 5 TON 43 9 kW RKKL B120 MODELS...
Page 45: ...45 FIGURE 21...
Page 46: ...46 FIGURE 22...
Page 47: ...47 FIGURE 23...
Page 48: ...48 FIGURE 24...
Page 49: ...49 FIGURE 25...
Page 50: ...50 FIGURE 26...
Page 51: ...51 FIGURE 27 RKKL SYSTEM CHARGE CHART...
Page 54: ...54...
Page 55: ...55...
Page 56: ...56 CM 1110...