tekmar 665 Snow Detector & Melting Control User Manuals - Manual

Snow Detector & Melting Control 665
665_U
01/14
Snow Melting Replaces: 09/02
User Manual
© 2014 665_U - 01/14 1 of 4 A Watts Water Technologies Company
The Snow Detector & Melting Control 665 is designed to control a single zone snow melting
system. The snow melting system may be started manually or automatically through the use
of a Snow/Ice Sensor 090. Standard features include pump/valve exercising, monitor menu
and many other useful items.
User Interface
User Access Level(s) The tekmar Snow Detector and Melting Control 665 has four access levels which are LTD (limited),
USER, INST (installer), and ADV (advanced). This brochure only covers the LTD (limited) and USER levels. Only qualified
service people should make adjustments in the INST (installer) and ADV (advanced) access levels.
Melt Demand
Idle Demand
WWSD
Water
Melting
Buttons
Selects Menus, Items and
adjusts settings
Number Field
Displays the current value
of the selected item
Menu Field
Displays the
current menu
Item Field
Displays an abbreviated
name of the selected item
Status Field
Displays the current
status of the control's
inputs, outputs and
operation
The tekmar Snow Detector & Melting Control 665 has a Liquid Crystal Display (LCD) and four push buttons
(Menu, Item, ▲, ▼) which are used to view and adjust the settings.
Heat
Displays when the Heat relay is turned on.
Pump
Displays when the system pump is
operating.
Override
Displays when the control is in override
mode.
Warning
Displays when an error exists or when a
limit has been reached.
Lock / Unlock
Displays whether the access levels are
locked or unlocked.
Pointer
Displays the control operation as
indicated by the text.
°F °C
min hr
sec
°F, °C, sec, min, hr
Units of measurement.