Accessory
In-line heater, 6 kW
Designation
37069089
Description
3 x 2 kW (230 V L–N), connection box, thermostat 25–85 °C, overheat protection
110 °C (manual reset), 28 mm steel pipes
Intended use
Electric in-line heater for installation in an ECO heat pump’s condenser line.
Setup (CUBE)
Reset the in-line heater’s overheat protection device during installation. The device
may be triggered by impacts or vibration during transport.
Installation (ECO)
Enable the heater from
Initial setup
settings (see chapter
Commissioning
).
The switchboards in ECO heat pumps have the electrical equipment necessary for
connecting an additional in-line heater (EB203), which is available as an optional
accessory.
1. Connect the heater to the switchboard as indicated in the unit’s electrical diagram.
2. Install the heater in the heating water flow line (from the condenser) as indicated in
the piping diagram.
3. Set the heater’s internal thermostat to its highest setting (85 °C).
4. Reset the heater’s overheat protection during installation.
The heater has either 28 mm stainless steel pipes or 1" threaded connections.
1. Before tightening any compression fittings, lubricate the inner surface of the ferrule.
2. Mount the fitting into position.
3. Tighten the fitting with your fingers until it is as tight as you can get it, then tighten
another 1/2 turns with a wrench.
General instructions
If the heater has been installed and enabled in the automation system, the standard
position for fuse F2 is ON. If the heater has not been installed, the fuse’s standard
position is OFF.
If an in-line heater has been installed and it needs to be disabled, disable the heater
from the heat pump’s settings. If an in-line heater has been installed and enabled in the
settings, do not set the heater’s fuse to the OFF position, unless there is a fault in the
heater.
In units that come with the in-line heater preinstalled, the heater’s internal thermostat
should not be adjusted. The thermostat has been set to its highest setting
(approximately 85 °C) at the factory. The thermostat will shut off power to the
immersion heater only if there is a malfunction in the heat pump’s automation system.
If you have accidentally turned the thermostat knob, turn the knob back to its highest
setting.
The in-line heater is equipped with an internal overheat protection device. The
device shuts the heater’s power off when the internal temperature of the immersion
heater cartridge exceeds 110 °C. To reset the switch, press the button on the black
connection box on top of the heater. The button is under a transparent plastic lid.
14 (54)
M8006 2123EN
