Lk 550 Mixing Valve - Nucamp T@B 320 Manual

f) LP gas burner ON.
g) Red LED flashes if the voltage to the boiler
goes below 10.5 V (automatic resetting at
higher voltage). Fixed light, the LPG boiler
has become blocked (resetting by the central
switch for LPG) or overheated (resetting by
the main switch of the vehicle). The
temperature sensors of the boiler could be
defective as well (resetting not possible).
h) Electrical cartridge/LP gas
Boiler/Circulation pump switched OFF.
i) (Normal mode) Circulation pump ON and
controlled by the thermostat on the control
panel. The boiler's built-in thermostat
controls the operation of the electrical
cartridge/LP gas boiler. This mode is used
when both heat and warm water (55° C or
131° F) are required. NB! If both the
electrical cartridge and the LP gas boiler are
ON, the electrical cartridge heats up first and
the LP gas boiler only starts when the room
temperature has gone down by 1-2° C.
j) Only the warm water (65° C or 149° F)
circulation pump is switched off. NB! If
both the electrical cartridge and the LP gas
boiler are ON, only the electrical cartridge
heats up.
k) Dial for setting the desired room
temperature.
l) Guide for setting the room temperature to
approximately (22° C or 71.6° F).
If the Alde system stops working check the fuses
located in the converter
box and in the Alde
system. The fuses in the
Alde system are in the
green fuse holders under
the black lid on the top of
the Alde system. Also, check to make sure that the
110 Power Cord is plugged in, and the breaker for
that outlet is on.
For more troubleshooting tips see page 8 in the
Alde manual.
Turn on the water pump and open hot water at the
kitchen sink, and at the shower, when water flows
continuously the heater is full. For more details, see
the water pump section of this manual.
When you're setting up the heater for the first time
you will want to test the water temperature coming
out of the faucet and adjust it by using the mixing
valve located close to the Alde unit. This adds cold
water to hot water before it gets to the faucet to
avoid getting water burns.

LK 550 Mixing Valve

Technical Data
Working temperature
Min. +5° C/Max. +90° C
(Min. 41° F/Max. 194° F)
Operating temperature Min. +38° C/Max.
+65° C (Min. 100.4° F/Max. 149° F)
Max. working temperature 1.0 MPa (10 bar)
Material, valve body: DZR Brass EN 12165
CW602N
Material, sealing's EPDM
LK 550 is a mixing valve for water heating with a
thermostatic element that regulates the supply of
cold water to achieve the desired temperature.
Valves with male thread G ½" and 15mm
compression fitting have an air vent for simple
draining of smaller water heaters.
Arrows on the body valve indicate the direction of
the flow:
 KV = incoming cold water
 VV = incoming hot water
 BV = outgoing warm water
When fitting to a male thread connection adapter
LK 373 is used – see under Accessories.
The valve knob is used to set the desired warm
water temperature within the range of 38° C to 65°
C (100.4° F to 149° F). The maximum temperature
can be calibrated as follows:
Increasing the Maximum Temperature:
Turn the knob anticlockwise to (+). Loosen the
screw and move the knob out to the side. Then turn
the knob clockwise to (-) without it being engaged.
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