Operation; Troubleshooting - Honeywell T8205B Product Data

T8205B,C, TS8205B,C ELECTRONIC POOL, SPA CONTROL SYSTEMS;
T8205A,H, TS8205A CONTROL MODULES; Q8205A-C SETPOINT PANELS AND SENSOR ASSEMBLY
0° REFERENCE ANGLE WITH FLAT OF SHAFT
PARALLEL TO TOP OF BOARD AS SHOWN
95°F
90°F
19°
TOP
173°
COM
65°F
DIVIDE POTENTIOMETER ROTATION INTO SEGMENTS TO
DETERMINE SETPOINT. USE LINE THROUGH CENTER OF
SHAFT PERPENDICULAR TO FLAT AS REFERENCE.
TEMPERATURE SETTING °F
TEMPERATURE SETTING °C
TOLERANCE °F
Fig. 9. Relationship between potentiometer
position and temperature setting.
68-0177—1
100°F
1°
106°F
19°
38°
POT 1 POT 2
65 90 95 100 106
18 32 35 38 41
+5 +3 ±1.5
±3 ±3
-2 -4
M11122B

OPERATION

The T8205A,H and TS8205A Control Modules use a potentio-
meter to set the operating temperature and an external sensor
assembly to sense the actual water temperature. The T8205A,H
and TS8205A are used with the Q8205A-C. The T8205B,C and
the TS8205B,C include the Q8205B,C. The setpoint potentio-
meter on the Q8205 is used to set the operating temperature.
On models with two potentiometers, one is used to set the pool
temperature, and the other is used to set the spa temperature.
Relay contacts in the module close to turn on the gas control or
ignition module when the temperature at the sensor drops 1°F
(0.5°C) below the setpoint. When the temperature rises to the
setpoint, the relay contacts open, turning off the gas control or
ignition module.
Control range is 61° to 106°F (16° to 41°C) with a fixed
subtractive differential of 1°F (0.7°C) maximum at 106°F (41°C).

TROUBLESHOOTING

The following procedures describe methods for
troubleshooting the T8205 and TS8205 Control Systems
when the pool/spa/hot tub are too hot or too cold.
• When the pool/spa/hot tub water is too cold, use Fig. 10 to
troubleshoot the system.
• When the pool/spa/hot tub water is too hot, use Fig. 11 to
troubleshoot the system.
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