Page 2
LAARS Heating Systems
For full instructions regarding the MagnaTherm,
please reference the MagnaTherm “Installation
and Operation Manual”, Document #1398. If not
available at or near the MagnaTherm, it can be
downloaded at www.laars.com
Power
Switch
Touch
Screen
Gas Valve
(shown in ON position)
Rating
Plate
Door
Latch
2. Restarting the MagnaTherm
It may be necessary to restart the MagnaTherm – for example, after a power interruption. Here are the steps
required to do this:
1 Reset any errors. See the Section 12 “Troubleshooting” of the Installation and Operating Manual.
2 Turn up the thermostat to call for heat.
3. In approximately 2 seconds, the blower will operate. Ignition should occur after 35-40 seconds. It may take
as long as 2-1/2 minutes.
4. If ignition does not occur, wait 5 minutes and then repeat steps 1 through 3.
5. If, after three attempts, the unit still does not light, shut down the unit and call your service technician.
Contents
1.
Shutting down the MagnaTherm ..........
2
2.
Restarting the MagnaTherm.................
2
3.
Start-Up and Shut-Down Decal. ...........
3
4.
In the Event of Power Failure ...............
5
5.
General Care ........................................
5
6.
Annual Inspection and Service .............
5
7.
For Service ...........................................
5
8.
About Lockouts, Holds and Alerts ........
5
9.
The Touchscreen Display .....................
6
1. Shutting down the MagnaTherm
It may sometimes be necessary to shut down the MagnaTherm.
Here are the steps required to do this:
1. Disconnect Power at the main electrical disconnect switch.
2. Open the front access doors and close the main manual gas valve
located above heat exchanger next to blower. It has a yellow
handle
3. If freezing is anticipated, drain the MagnaTherm (also be sure to
protect the piping in the
building from freezing).
The steps listed above may require
qualified service personnel.
Example
The Manual
Shut Off for
the 3500 / 4000
Models is on
the Left side of
the unit
