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The permanent monitoring of the boiler temperature is a smart energy-
saving function that can be used optionally when the external boiler
sensor (S2) is connected. If the boiler temperature is too low, the
EN
HWAT-ECO V5 is switching off the heating cable to prevent the water in
DE
the pipes from being heated up by the HWAT heating cable.
•
Activate/deactivate the connected boiler sensor by pressing
DA
ON/OFF. The actual boiler temperature is shown in the main display
at the bottom right.
CZ
•
If the boiler temperature value flashes on the display, the "Follow
FR
boiler temperature" function is active. This happens when the actual
temperature reading of the boiler sensor is below the set maintenance
IT
temperature of the heating cable for more than 24 hours.
– Example: boiler temperature: 50°C / maintenance temperature: 55°C
NL
•
The maintenance temperature of the heating cable is also reduced
PL
together with the lowered boiler temperature but not more than 5 K.
– Example: scheduled maintenance temperature: 55°C / boiler
ZH
temperature: 48°C / used maintenance temperature: 50°C
•
If the boiler temperature drops to the set boiler cut-off temperature,
the heating cable will be switched off and an error message
<E:4.1: Boiler temperature too low> is displayed.
If the actual temperature reading of the boiler sensor reaches the
setpoint maintenance temperature according to the schedule, the
function "Follow boiler temperature" will be switched off immediately
and the 24-hour delay timer will be reset.
3.2 Technical data
Product specification
Supply voltage
Power consumption
Power output relay (heating
cable)
Max. deviation current
measurement
Max. deviation energy
consumption
Power supply terminals
Heating cable terminals
Alarm terminals
Sensor terminal - Boiler
Sensor terminal - Pipe
Alarm relay
Circuit breaker
Real time clock
Clock backup
Clock accuracy
LED light - error message
LED light - normal operation,
heater on
LED light - normal operation,
heater off
|
10
nVent.com/RAYCHEM
HWAT-R/-M/-L heating cables only
Electrical properties
180-253 VAC, 50/60 Hz
3,5 VA max
20 A / 230 VAC
10%
20% (if the country-specific voltage is within
the limit of +/– 10%)
3 x 6 mm² max
3 x 6 mm² max
3 x 1,5 mm² max
2 x 1,5 mm² max
2 x 1,5 mm² max
Single pole double throw relay, volt-free,
Max. switching capacity (resistive load only)
1 A/30 VDC 0.5 A/125 VAC,
Max.: 60 VDC/125 VAC
Max. C 20 A (C-Characteristic)
Automatic Summer/Winter time and
Leap year correction
10 days
A variation of ± 10 minutes per year is possible
0.2 s on / 1.8 s off
1.5 s on / 0.5 s off
1 s on / 1 s off
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