User Guide

User’s Manual - Mascot ST Water Heater
Page 5
4. The Control Display and Operation
(continued)
Mascot ST Tankless Water Heater
Page 41
SECTION 5. Control Display and Operation
5.2 LCD Overview
Lock mode Buttons-locked mode icon
Communication Communication icon
Status and Installer mode The Status Mode or the Installer Mode is Active (all parameters)
Flame signal Flame Signal icon
Numeric Display Number and character display, to display all parameters
DHW mode Water heater Set Point, can be adjusted
WARNING
Do not use this appliance if any part has been under
water. Immediately call a quali ed service technician
to inspect the appliance and to replace any part of
the control system and any gas control that may have
been under water.
The LCD will illuminate when a user action is detected (a button is pressed) and will turn
back off after 20 seconds.
* NOTE: The display will not allow changes when the lock mode
is activated.
To exit the Lock mode, press the
button.
Numeric Display
Domestic Hot
Water Mode
Lock Communicating
Status and
Installer
Modes
Flame
Signal
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