2 (4)
0FL-3485-001, 1994.01
The TA 239W controller is part of the C80 system and is
designed for the control of domestic hot water systems.
TA 239W should be used in combination with the EGWS type
fast temperature sensor and the EM5 type actuator. However,
also the EGW type sensor can be used.
The power supply can be 16 V DC or 24 V AC.
The connection of TA 239W is identical with the TA 219W and
TA 229W. Therefore it can directly replace a TA 219W or
TA 229W, without alteration of the connections.
MOUNTING
Controller TA 239W: The controller occupies one module on
the terminal board. Mount in accordance with the
0FL-3139-000 instruction.
Temperature sensor EGWS: Sensor for mounting in pipe
systems without separate pocket. Mount as close to the heat ex-
changer as possible. If a mixing valve is included in the system:
mount 300 mm after the valve.
Actuator EM5: Instruction is enclosed with the actuator.
ADJUSTMENTS
On the front panel:
SP:
Set point
Range: 20-120 °C.
Under the cover:
Pb:
P band
Range: 17-200 °C
Factory setting: 50 °C
T
i
:
Integral time
Range: 5-60 seconds
Factory setting: 10 seconds
HL:
High load changeover limit
Range: 6-10 V control output signal (OFF:no low load)
Factory setting: 9 V
DZ:
Low load dead zone
Jumper closed: 5 °C;
Jumper open: 2 °C
Factory setting: 5 °C
SPC: Set point displacement
Jumper in the upper position: SPC = 32;
Jumper in the lower position: SPC = 6,7
Factory setting: SPC = 6,7
ST:
Actuator stroke time
Jumper in the upper position: 60 seconds;
Jumper in the lower position: 15 seconds
Factory setting: 60 seconds
SC:
Sequence control
Jumper open: 3 steps;
Jumper in the upper position: 2 steps;
Jumper in the lower position: 1 step
Factory setting: 1 step
PS:
Power supply
Jumper in the upper position: 16 V DC;
Jumper in the lower position: 24 V AC
Factory setting: 16 V DC
OR: Y Output range
Jumper in the upper position: 2-10 V;
Jumper in the lower position: 0-10 V
Factory setting: 2-10 V
For TAC service personnel only:
P2:
Connection of flat cable to TM2.
TP1: Connection of test wire (6 V) to TM2.
TA 239W Installation instruction
Adjustments on
the circuit board
SPC
DZ
Pb
SC
PS
HL
OR
ST
Ti
P2
TP1
SP
ELECTRICAL INSTALLATION
Connections of the terminal block
M/G0 24 V AC neutral/External 16 V DC neutral
G1/G 24 V AC input/External 16 V DC input
M
Measuring ground (Sensor signal ground)
Y
Output 2-10 V/0-10 V. Connect signal ground to M/G0
B
Sensor. Connect signal ground to M
Z1
SPC input. Connect signal ground to M/G0
Note: If TA 239W is 24 V AC supplied, the actuator must be of
half-wave rectified type e.g. EM5, or else the controller and
the actuator must have separate transformers.
Length of cables
Max. 100 m (300 ft) of 1,5 mm
2
(AWG 16) cable for power
supply.
Max. 200 m (600 ft) of 0,5 mm
2
(AWG 20) for other connections.
TECHNICAL DATA
Part number, TA 239W with °C scale:
with cassette and terminal block ................. 239-1010-800
with transformer TR mounted in a case ...... 239-1010-0TR
Ambient temperature:
Operation ......................................................... 0 to +50 °C
Storage .......................................................... -40 to +50 °C
Ambient humidity ............................................. max. 90% RH
Supply voltage .............................................. 16 V DC ±0,4 V
24 V AC ±20%, 50-60 Hz
Power consumption ............................................ max. 25 mA
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
G
TA 239W
1
2
EGWS
X1
G
EM
X2 G2
G0
B M
G0
24V AC
0V
Y
Example: 16 V DC supply.
Example: 24 V AC supply.
G1
TA 239W
1
2
EGWS
X1
G
EM
X2 G2
G0
B M
G0
0V
Y
G1
24V AC
English
