059327–00 REV. C
HEAT-TIMER CORP.
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39
05 STARTUP
CALIBRATING THE ACTUATOR
1 Close the valve feeding the tempering valve HOT port.
2 Ensure the Actuator Manual Tab is in the Normal Operation
position (UP).
3 Remove the Actuator cover and ensure DIP switch 7 is in the ON
(MAN) position.
4 Change DIP switch 7 to the OFF (AUTO) position then back to the ON
(MAN) position.
The green and red LEDs start blinking, indicating calibration has
started. The Actuator moves the valve stem up and down. Calibration
is complete when the green LED is steady-on or blinking.
5 Replace the Actuator cover.
6 Open the valve feeding the tempering valve HOT port.
NOTE
Each time the Actuator is assembled to the valve, the Actuator
must be calibrated.
OFF
HOT BHOT A
SEQ
5–10, 6–100–5, 2–6
INCMOD
2–100–10
4–20mA
MANAUTO
ON
1 2 3 4 5 6 7
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