Tekmar 664 Snow Detector & Melting Control User Manua User Manual download pdf

- User Brochure

Snow Detector & Melting Control 664

U 664

07/01

User Interface

The tekmar Snow Detector & Melting Control 664 has a Liquid Crystal Display

(LCD) and four push buttons (Menu, Item, ▲, ▼) which are used to view and

adjust the settings.

All of the items displayed by the control are organized into various menus. These menus

are listed on the left hand side of the display (Menu Field). To select a menu, use the

Menu button. By pressing and releasing the Menu button, the display will advance to

the next available menu. Once a menu is selected, there will be a group of items that

can be viewed within that menu.

Item

The abbreviated name of the selected item will be displayed in the item field of the dis-

play. To view the next available item, press and release the Item button. Once you have

reached the last available item in a menu, pressing and releasing the Item button will

return the display to the first item in the selected menu.

Adjust

To make an adjustment to a setting in the control, begin by selecting the appropriate

menu using the Menu button. Then select the desired item using the Item button.

Finally, use the ▲ and / or ▼ button to make the adjustment.

Additional information can be gained by observing the Status field of the LCD. The

status field will indicate which of the control’s outputs are currently active. Most symbols

in the status field are only visible when the View menu is selected.

The Snow Detector & Melting Control 664 is designed to control up to two zones in a snow melting system.

The control automatically adjusts the mixed supply water to the snow melting system by controlling up to

two boilers and a single mixing device. For mixing, the 664 can use a variable speed injection pump, a

floating action mixing valve or a 4-20 mA device. The snow melting system may be started manually or

automatically through the use of a Snow / Ice Sensor 090. Standard features include priority snow melting,

slab and boiler protection, and many other useful items.

Snow Detector & Melting Control 664

Two Zone, Two Stage Boiler, Mixing

158033

Menu Item

Start Stop

Melt Demand

Idle Demand

WWSD

Minimum

Maximum

Water

Melting

User Access Level(s) The Snow Detector & Melting Control 664 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

adjust the INST (Installer) and ADV (advanced) access levels.

Open / Close

Displays when the actuator is

opening or closing the mixing

valve.

Mixing Device Output Scale

Shows output of injection pump,

mixing valve or 4-20mA device.

Arrows show whether the output

is increasing or decreasing.

Warning

Displays when an error exists

or when a limit has been

reached.

Lock / Unlock

Displays whether the access

levels are locked or unlocked.

min hr

sec

°F, °C, sec, min, hr

Units of measurement.

Pointer

Displays the control operation

as indicated by the text.

Pump

Displays when the system

pump is operating.

Ovr

Override

Displays when the control is in

override mode.

Burner

Displays when the Stage 1

and/or Stage 2 relay is

turned on.

Zone

Displays when a zone is in

operation.

Minim

ater

Meltin

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

1 2 3 4

Summary of Contents

Page 1 - - User Brochure

Page 2

Page 3 - REMOTE DISPLAY MODULE (RDM)

Page 4 - Control Systems

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Tekmar 664 Snow Detector & Melting Control User Manua User Manual

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