tekmar 667 Snow Detector & Melting Control - Manual (Page 17)

17 of 28 © 2002 D 667 - 09/02
667 View Menu (1 of 2)
-67 to 149°F
(-55 to 65°C)
– – –, 20 to 110°F
(– – –, -7 to 43°C)
-58 to 167°F
(-50 to 75°C)
STRT, STOP, IDLE, EXT,
0:00 to 23:59 hr, – – –,
INF, WWSD, CWCO,
DET
To change the access level, set the DIP switch to the unlocked, or down position. The current access level of the control or tekmar
Net™ tN2 device is viewed in its Miscellaneous (Misc) menu. While viewing the access level, use the
▲ and ▼ keys to select
between the Limited (LTD), User (USER), Installer (INST) or Advanced (ADV) access levels.
To lock the access level, select the appropriate access level in the Miscellaneous (Misc) and move the DIP switch from the unlocked
position to the locked position. As long as the DIP switch is in the locked position, the access level of the control or tekmar Net™
tN2 device can no longer be viewed or adjusted in its Miscellaneous (Misc) menu.
IDLE DEMAND / MELT DEMAND (FACTORY SETTING IS MELT DEMAND)
The Idle Demand / Melt Demand DIP switch is used for melting and idling operation. The position of the DIP switch determines
what the Melt/Idle Demand terminals (15 and 16) are used for. When the DIP switch is set to the Melt Demand position, the Melt/Idle
Demand terminals (15 and 16) are used to place the snow melting system into melting mode.
When the DIP switch is set to the Idle Demand position, the Melt/Idle Demand terminals (15 and 16) are used to force the snow
melting system into idling mode.
Access Levels
The tekmar Snow Detector & Melting Control 667 comes with four Access Level settings. These Access Levels restrict the number
of Menus, Items and Adjustments that can be accessed by the user. The four access levels are Limited (LTD), User (USER), Installer
(INST) and Advanced (ADV).
Item Field
Access
Level
Description Range
Section LT
D
USER INS
T
AD
V
E1
E1
B1
B1
The access level of the control is found in the Miscellaneous (Misc) menu when the
Lock / Unlock DIP switch is set to the Unlocked position. In the Advanced access level, all
of the control settings are available to the user. In the User access level, only a few of the
menus and items are available. The Limited access level is the most restricted of them all.
The control’s factory setting is Installer (INST). This access level is sufficient for the normal
set up of the control. Once the control is set up, the appropriate access level should be
selected for the people that deal with the control on a regular basis.
Current outdoor air temperature as measured by the
outdoor sensor.
Slab sensor target temperature.
Current slab sensor temperature.
Operating status.
Current mixed supply water temperature as measured by
the mixing supply sensor. -31 to 266°F
(-35 to 130°C)