Installation
Low Voltage Wiring
Low Voltage Wiring for Field Provided Thermostats/Zone Sensors
Ensure that the AC control wiring be- tween the controls and the unit’s ter- mination point does not exceed three
(3)ohms/conductor for the length of the run.
Note: Resistance in excess of
Check all loads and conductors for grounds, shorts, and
Use copper conductors unless other- wise specified.
Do not run the AC low voltage wiring in the same conduit with the high volt- age power wiring.
Table 3: 24V AC conductors
Distance | Recommended |
from unit to Control | Wire Size |
|
|
18 gauge | |
|
|
16 gauge | |
|
|
14 gauge | |
|
|
Thermostat Location
Location of the room thermostat/zone sensor cis an important element of effec- tive room control.
Areas where the thermostat or zone sensor should not be located include : be- hind doors, or corners; Near hot or cold air ducts; Near radiant heat (heat emitted from appliances or the sun); Near concealed pipes or chimneys; On outside walls or other non conditioned surfaces; In airflows from adjacent zones or other units (Figure 7).
Figure 7: Thermostat/sensor location
19 |