BAS-SVX44A-EN 9
Pre-Installation
Maximum Wire Length
The thermostat may not function properly if the total resistance of any of the thermostat wires
exceeds 2.5 ohms (refer to Table 2).
Important: Ensure
that the wires from the thermostat to the HVAC equipment do not exceed
lengths shown in Table 2. Best
practice: use shorter wire lengths.
18 AWG (0.75 mm
2
) 385 ft (117 m) 2,500 ft (762 m) 385 ft (117 m)
20 AWG (0.50 mm
2
) 240 ft (73 m) 1,500 ft (457 m) 240 ft (73 m)
22 AWG (0.33 mm
2
) 150 ft (46 m) 1,000 ft (305 m) 150 ft (46 m)
Table 2. Maximum wire lengths
Copper Wire size
Maximum Recommended Wire
Length From Thermostat to HVAC
Equipment
Remote
Temperature Sensor
to Thermostat
(Max
(a)
)
Remote Humidity Sensor to
Thermostat (Max
(a)
)
(a) Temperature and humidity readings can be adjusted in the configuration setup for longer wire runs.
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