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101
Heating Controllers
TAC 239W
Domestic Hot Water
Temperature Controller
The TAC 239W controller is part of the C80 system and is designed for the
control of domestic hot water systems. The output is a 2–10 V or a 0–10 V
signal, which can position one or up to 10 actuators of the EM type in paral-
lel. The setpoint can be increased or decreased via the SPC input.
For best results, the TAC 239W should be used in combination with a fast
temperature sensor.
FUNCTIONAL FEATURES
•
Controller for domestic hot
water
•
Output 2-10V or 0-10V
•
SPC input for remote setpoint
adjustment
SPECIFICATIONS
Supply voltage . . . . . . . . . . . . . . . . . . . . . 16 V DC ±0.4 V, 24 V AC ±20%,
50–60 Hz
Power consumption . . . . . . . . . . . . . . . . . max. 25 mA
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . 127 x 54 x 74mm
Temperature sensor . . . . . . . . . . . . . . . . . 1800 ohm/25 °C (77 º F)
Control Output Y
Output voltage . . . . . . . . . . . . . . . . . . . . 2–10 V or 0–10 V, direct acting
Load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . max 2 mA; max. 10 control
inputs, short circuit proof
Control Input Z1
Permitted voltage. . . . . . . . . . . . . . . . . . . max. 16 V DC
Input current . . . . . . . . . . . . . . . . . . . . . . max. 0.1 mA
Ambient Temperature
Operation . . . . . . . . . . . . . . . . . . . . . . . . 0 to +50°C (32 to +122 º F)
Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . –40 to +50°C (-40 to +122 º F )
Ambient humidity . . . . . . . . . . . . . . . . . . max. 90% RH
Enclosure Rating
Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP 54 (similar to NEMA 13)
Terminals . . . . . . . . . . . . . . . . . . . . . . . . . IP 31 (similar to NEMA 1)
DESCRIPTION
239-1010-800 TAC 239W with cassette and terminal block