Installation
RT-SVX22M-EN
33
Controls using DC Analog
Input/Outputs (Standard Low Voltage
Multi conductor Wire)
Before installing any connecting wiring between the unit
and components utilizing a DC analog input/output signal,
refer to
“Unit Dimensions,” p. 14
for the electrical access
locations provided on the unit.
•
Table 7, p. 33
lists the conductor sizing guidelines that
must be followed when interconnecting the DC binary
output devices and the system components utilizing a
DC analog input/output signal to the unit.
Note:
Resistance in excess of 2.5 ohms per conductor can
cause deviations in the accuracy of the controls.
Note:
Ensure that the wiring between controls and the
unit’s termination point does not exceed two and a
half (2.5) ohms/conductor for the length of the run.
•
Do not run the electrical wires transporting DC signals
in or around conduit housing high voltage wires.
•
Route low voltage wiring per illustrations on page
34
.
Note:
If digit 9 in the unit model number equals “E”
(Electro Mechanical Control), accessory relay
BAY24X042 is required if the thermostat does not
energize the fan circuit in the heating mode.
Table 6.
Electromechanical thermostat 24V AC
conductors with Electromechanical unit
Distance from Unit to
Control
Recommended Wire Size
0 - 30 feet
22 gauge
0 - 9.1 m
.33 m2
31 - 50 feet
20 gauge
9.5 - 15.2 m
.50m2
51 - 75 feet
18 gauge
15.5 - 22.9 m
.75 m2
76 - 125 feet
16 gauge
23.1 - 38.1 m
1.3 m2
126 - 200 feet
14 gauge
38.4 - 60.9 m
2.0 m2
Table 7.
Zone sensor module wiring
Distance from Unit to
Control
Recommended Wire Size
0 - 150 feet
22 gauge
0 - 45.7 m
.33 mm2
151 - 240 feet
20 gauge
46 - 73.1 m
.50 mm2
241 -385 feet
18 gauge
73.5 - 117.3 m
.75 mm2
386 - 610 feet
16 gauge
117.7 - 185.9 m
1.3 mm2
611 - 970 feet
14 gauge
186.2 - 295.7 m
2.0 mm2
Figure 38.
ReliaTel™ conventional thermostat field
wiring diagrams
Figure 39. Typical field wiring diagrams for Electro
Mechanical Thermostat
Figure 40.
ReliaTel options module
RTRM
100 P (Red)
173 C (Brn)
101MM (Blu)
175 D (Blk)
174 B (Brn)
176 D (Yellow)
184 A (Yellow)
