Honeywell CHRONOTHERM T8621A User Manual page 3

Thermostat
Model Stages
Number Heat
T8621A* 1
T8621C 2
T8621D* 2
*Model available with separate sensor for remote mounting.
CURRENT RATING: 1.6A maximum total per stage.
OPERATING HUMIDITY RANGE: 5 to 90 percent
relative humidity, noncondensing.
OPERATING AMBIENT TEMPERATURE RANGE:
40 F to 110 F [4 C to 43 C].
SETPOINT RANGE: 45 F to 88 F [7 C to 31 C].
CALIBRATION: Self-calibrating thermostat and ther-
mometer to 1 F.
SHIPPING TEMPERATURE: -20 F to +120 F [-29 C to
+49 C].
CYCLES PER HOUR ADJUSTMENT:
Heating: First stage of 2-stage heat models—fixed at
3 cph. Second stage of 2-stage heat models or
heat stage of single-stage heat models—factory-
set
Fig. 1—T8621 Subbase mounting dimensions in in. [mm].
5
5
16
[135]
M5181A
TABLE 2—TRADELINE MODELS.
Changeover
Cool Type
1 Auto
1 Auto
2 Auto
at
13
1
16
[46]
5
3 [83]
16
3
4 [121]
4
7 [179]
Switching
System
HEAT-AUTO-
COOL-OFF
HEAT-AUTO-
COOL-OFF
HEAT-AUTO-
COOL-OFF
6 cph; adjustable for other systems.
Cooling: Factory-set at 3 cph (not field adjustable);
minimum off-time of five minutes.
FINISH: Beige matte with decorative brushed metal face-
plate.
DIMENSIONS: Thermostat (mounted on subbase)—7
in. [178 mm] long, 5-5/16 in. [135 mm] high, 1-3/
4 in. [44 mm] deep. See Fig. 1 for subbase dimen-
sions and Fig. 2 for sensor dimensions.
TYPICAL KEYPAD: See Fig. 3.
ACCESSORIES:
TG586A Locking Cover.
TG512 Versaguard Universal Thermostat Guard.
REPLACEMENT PARTS:
202905AA Remote Temperature Sensor Assembly.
Includes sensor, screws, anchors and instructions. See
Fig. 2 for dimensions.
3
4
32
[104]
3
T8621A,C,D
SPECIFICATIONS
Fan Application
ON-AUTO Single stage
ON-AUTO Multistage
ON-AUTO Multistage
31
1
32
[50]
68-0058—1