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SPECIFICATIONS
Comfort Range 60°F – 80°F
Comfort Control Accuracy ± 1°F (applies to settings within Comfort Range)
Operating Range
1
32°F – 99°F
Maximum Control Accuracy ± 2°F
Temperature Setting (Control) Range 50°F – 90°F heating; 60°F – 90°F cooling
Switched Load Voltage 18 – 30 volts
Maximum Operating Current 1.0 Amp
Maximum Surge Current 3.0 Amps
Low Limit Temperature
2
41°F ± 9°F
High Limit Temperature
3
100°F ± 9°F
1
Operating Range is the temperature range in which the thermostat will accurately
display temperature.
2
Low Limit Temperature is the temperature setting of an internal, temperature-controlled
mechanical switch in a circuit between RH and W for Models 8344, 8348, 8363 and 8366,
and between R and W2 for Models 8346 and 8365. This device is intended to prevent
freezing of water pipes should battery replacement be neglected.
3
High Limit Temperature is the setting of an internal, temperature-controlled mechanical
switch in the circuit between the RH and the W terminal (W and W2 terminals for Model
8348 and 8366). This device will limit the room temperature should the contacts of the
heat relay remain closed. Applies to Models 8344, 8348, 8363 and 8366 only.
WARNINGS
120 volts may cause serious injury from electrical shock. Disconnect
electrical power to the furnace & air conditioner before starting
installation. This thermostat is not a 120 volt (line voltage) device.
Improper installation may cause serious injury from electrical shock. This
product must be installed by a qualified heating & air conditioning contractor
in accordance with NEC Standards and applicable local and state codes.
Mercury is toxic and may be hazardous to your health. Any replaced
thermostats containing mercury must be disposed of properly. Contact
local authorities for disposal information.