nVent RAYCHEM HWAT-ECO-GF Manuel D'installation, D'utilisation Et D'entretien page 21

SYSTEM
Status Info on current status of the control unit:
INFO, RESET, SERVICE, TEST....
Pipe temperature
HEATING CABLE & PIPE
Boiler temperature
CABLE TYPE, PIPE DAIMETER,...
Maintain temperature
GENERAL SETTINGS
Supply voltage
COUNTRY, LANGUAGES, UNITS,...
Duty cycle
WATER TEMP. & PROGRAM
Power loss
APPARTMENT, MAINTAIN, ECONOMY,....
Max power output
Load current
External contactor
GFP current
INFO
Key lock When key lock is "On", the setup and timer menus are
TEST PROGRAM
protected by password. To unlock the unit, enter the
predefined password (3000). The unit will automatically
RESET
lock itself after 10 mins of inactivity or when Lock "on"
SERVICE
key is pressed. To deactivate the Key lock, press "OFF".
STATUS
HEATING CABLE & PIPE
HEATING CABLE & PIPE
SELECT CABLE TYPE
SELECT PIPE DIAMETER
SELECT INSULATION THICKNESS
SELECT AMBIENT TEMPERATURE
SELECT BOILER SENSOR
SELECT BOILER CUT-OFF TEMPS.
Selection of Every parameter line shows the actual value /attribute for
parameters each parameter.
HWAT cable Select the type of cable used in your installation.
Pipe Set the pipe diameter. You can change the value from
diameter 1/2" (DN 15) up to 5" (DN 100).
Insulation Set the insulation thickness. You can change the value
thickness from 1/2" to 5" (13 mm to 125 mm) with the pipe diameter
as the limiting value.
Boiler sensor Activate/deactivate the connected boiler sensor by
/ Follow boiler clicking on the ON/OFF. The external temperature sensor
function measures boiler temperature. The "follow boiler" function
is active if there is no sensor error and if the current
temperature reading of the boiler sensor is below the set
temperature based on the time program for more than 24
hours. When the "follow boiler" function is active:
• the boiler temperature value flashes,
• the condition is checked if the set temperature based
on the time program minus 10K is greater than the
boiler low alarm limit temperature setting based on
the parameter settings. In this case, the controller
assumes that the new boiler low alarm temperature
limit for checking error conditions is set to "setpoint
temperature minus 10K", e.g., the setpoint temperature
is 120 degrees F, the boiler low alarm temperature limit
based on parameter settings is set to 100 degrees F,
then the boiler low alarm temperature limit for checking
error conditions is 110 degrees F,
• the working setpoint for output calculation will be
adjusted according to the current boiler sensor
temperature reading, but the reduction will be limited
to max. 5K, e.g., if the setpoint temperature is 120
degrees F and the current boiler sensor temperature
reading is 90 degrees F, the working setpoint for output
calculation will be set to 115 degrees F.
If the current boiler sensor temperature reading reaches
the setpoint temperature based on the time program, the
"follow the boiler" function will be turned off immediately,
and the 24-hour delay timer will be reset.
140 °F
SETTING
SYSTEM
HWAT-R2
DN 25
40 MM
20 °C
ON
35/85 °C
14 : 17
14 : 17
14 : 17
nVent.com/RAYCHEM
SELECT ALARM
SELECT SAVING TIME
EN
WATER
FR
SELECT WATER TEMPERATURE
SELECT PROGRAM
PROGRAM TIMER
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