Warning – Reznor R6GD Unit Installation Manual User Manual
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Table 5. Thermostat Wire Gauge
Thermostat
Wire Gauge
Recommended T-Stat Wire
Length (Unit to T-Stat)
2-Wire
(Heating)
5-Wire
(Heating/Cooling)
24
55
25
22
90
45
20
140
70
18
225
110
COPPER WIRE SIZE — AWG
(1% Voltage Drop)
Supply Wire Length-Feet
Supply Circuit
Ampacity
200
150
100
50
6
8
10
14
15
4
6
8
12
20
4
6
8
10
25
4
4
6
10
30
3
4
6
8
35
3
4
6
8
40
2
3
4
6
45
2
3
4
6
50
2
3
4
6
55
1
2
3
4
60
Wire Size based on N.E.C. for 60° type copper conductors.
Table 4. Copper Wire Size
Grounding
WARNING:
The unit cabinet must have an uninterrupted or
unbroken electrical ground to minimize personal
injury if an electrical fault should occur. Do not
use gas piping as an electrical ground
!
This unit must be electrically grounded in accordance
with local codes or, in the absence of local codes, with
the National Electrical Code (ANSI/NFPA 70) or the CSA
C22.1 Electrical Code. Use the grounding lug provided in
the control box for grounding the unit.
Figure 8. Typical Thermostat Connection for 1-Stage Cool / 1-Stage Heat
Green
Gray
Black
Yellow
Blue
R C
Y G
W
X
Y2
Y1
R
G
W1
Gas
Valve
1
2
3
4
5
6
7
8
9
Economizer Plug
Indoor Thermostat
Sub-Base
Furnace Board
(Optional, Check thermostat Instructions)
Thermostat / Low Voltage Connections
• The R6GD unit is designed to operate from a 24 VAC
Class II control circuit. The control circuit wiring must
comply with the current provisions of the NEC (ANSI/
NFPA 70) and with applicable local codes having
jurisdiction. Thermostat connections should be made
in accordance with the instructions supplied with the
thermostat and the indoor equipment.
• The low voltage wires must be properly connected.
Route 24V control wires through the sealing grommet
near the power entrance. Recommended wire gauge
and wire lengths for typical thermostat connections are
listed in Table 5.
• Several thermostat options are available depending
on the accessories installed with the unit. Select a
thermostat that operates in conjunction with the installed
accessories.
• Back-up fossil fuel heat capability is required with the
Dual Fuel iHybrid™ heat pump packaged system. This
system is capable of providing two stages of cooling, two
stages of heating in heat pump mode, and an additional
two stages of secondary gas heating.