LAARS Heating Systems
Page 4
3. Shut Down and Restart
3.1 To Start the Mascot ST
If drained, please refer to the Install and
Operating Manual to ensure that the complete
‘Setup’ procedure has been followed before
starting this water heater. A complete ‘Setup’ must
be performed by a qualified service person.
3.2 Shutting Down the Mascot ST
1.
Turn off the main electrical disconnect switch.
LAARS Heating Systems
Page 40
SECTION 5. Control Display and Operation
5.1 Control Dial and Buttons
Buttons
Functionality
PRESS
(Tap)
PRESS and HOLD
(5 seconds)
A
Display Power
Turns Control Display
ON / OFF
B
Modes
Tap to return to menu
(If Display Power was On )
Status Display Mode
(If Display Power was Off )
Installer Mode
C
Hot Water
DHW Set-Point LOW Range
95 - 120°F (35 - 49°C)
DHW Set-Point HIGH Range
121 - 140°F (49.5 - 60°C)
D
Toggle (°C / °F)
E
Scroll / Select
Turn to scroll, tap to select
(clockwise or counterclockwise)
The Control Display
has a Control Dial (E), 4 buttons (A, B, C, D), and a Liquid
Crystal Display (with 72 back-lit segments). This section of this manual gives
instruction on how to navigate into the many functions of the Mascot ST and to
change temperature set points, set system variables and controller parameters.
Status Light
(constant green
when operating
normally)
The Control Display
2.
Close all manual gas valves.
3.
If freezing is anticipated, drain Mascot ST and be
sure to also protect building piping from freezing.
All water must be removed from heat exchanger
and condensate trap or else damage from
freezing may occur. Please refer to the Install and
Operating Manual.
This step to be performed by a qualified service person.
4. The Control Display and Operation
