WATER PUMPS OPERATE AUTOMATICALLY
Pumps are thermostatically controlled to
maintain a target temperature. When the target
room temperature is set higher than the
current room temperature, the pump is running
continuously until the target temperature is
reached. To maintain the temperature, the
pump runs with intervals of 10 seconds ON and
5-90 seconds OFF.
WATER PUMP #2 CONTROL
Move the selection
square to the Pump #2
Icon and press the
Select Button. Pump
#2 is now activated
and the icon turns
orange.
Glycols + water mixture or
Dowcal 200 (propylene glycol-based heat
transfer fluid) + water mixture
UNIT FORMS PRESSURE
40 EA heats water with heat transfer fluid
circulation. Fluid must be either
Water pumps form pressure, which circulates
the fluid inside the unit and in heating pipes. It
is very important to not let the unit reach
excessive pressure. Therefore, an open
expansion tank must be used at all times.
Also, a 1.5 Bar overpressure valve should be
installed in the system.
IMPORTANT TO NOTE
Pause Mode automatically turns the burner off if the
water temperature rises above 82 C°/ 180 F°. The
unit will start heating again when the water
temperature drops to 55 C°/130 F°. It will attempt to
maintain a steady 70 C°/158 F° degrees.
PAUSE MODE
If the heater is in Pause Mode,
Paused and a Pause Icon will appear
on the screen.
Heater will re-start heating again
automatically.
Water pump #2 is intended for floor heating and
therefore operates with more powerful flow, sufficient to
provide heat transfer fluid circulation in the heating pipes
underneath the flooring.
Move the selection
square to the Target
Room Temperature
and press the Select
Button. Use Arrow
Buttons to set the
desired temperature.
If a Lock Icon is displayed, the
heater has locked itself for safety.
The heater will also lock after 2
unsuccessful starts. Move the
selection square to the
Exclamation Point Icon and press
the Select Button. An Error Page
will appear.
LOCK
If the heater has locked itself,
there may have been a failure
that should be investigated and
resolved prior to further use. The
error page will display a check list
and a website for further
information. If you need help,
reach out to a professional.
(SAFETY FEATURE)
Press and hold the Select Button
down for more than 4 seconds.
Stopping will appear and the
Power Icon light will change to
white indicating the unit is off.
SHUTDOWN
Alternatively, the unit can be shut down by moving
the selection square to the Start/Stop Icon and
pressing the Select Button once, then holding it down
again for 3 seconds to confirm. The unit will shut
down.
To remove the lock, press any
button to return to the main display.
Move the selection square to the
Main Menu Bar and press the
Select Button, choose Settings, and
press the Select Button. Choose
Clear Lock from the Settings Menu
and press the Select Button.
Select
Button
All rights reserved. Wallas-Marin reserves the right to change or improve its products and to make changes in the content of this guide
without obligation to notify any person or organization of such changes or improvements. Go to www.wallas.com for current updates and
supplemental information concerning the use of this product.
PROPER DRAINAGE IS NECESSARY
To avoid all damage from flooding, there
must be proper drainage in the space where
unit and water boiler are installed. Also, the
expansion tank overflow pipe should lead to
the floor drain. Drainage must be checked
before use.
(SAFETY FEATURE)
