Tekmar 665 - User Manual

© 2016 tekmar 665
_
D - 06/16
665
_
D
06/16
Snow Melting Replaces: 04/12
Snow Detector & Melting Control 665
Installation & Operation Manual
The Snow Detector & Melting Control 665 is a microprocessor-based control which operates a single zone snow melting system.
The control can operate automatically when a Snow / Ice Sensor 090 is installed or the user can manually enable and/or disable the
system. When the control is in the melting mode, the slab is maintained at a “Melting” temperature through an on/off output which
operates a contactor for electrical cables, a boiler, an injection pump or an injection valve. When the control is not in the melting mode,
the melt system can either be shut down or it can be maintained at an idle temperature for faster response and improved safety. The
665 control includes a large Liquid Crystal Display (LCD) in order to view system status and operating information.
Additional features include:
1
Red
2
Blk
3
Blu
4
Yel
5
Brn/
Slab
6
Out
7
Com
8
tN2
9
Melt/Idle
Demand
10 11
Heat
12 13
Melting
14 15 17
Sys
P1
16
Power
L
N
Test
Snow Detector & Melting Control 665
Pulse Width Modulation
Idle Demand
Melt Demand
not testing
testing
testing paused
For maximum heat,
press and hold Test
button for 3 seconds.
off
red
red
Do not apply power
Input
Snow/Ice Sensor
090 installed with
Sensor Socket
091 Optional
Input
Slab Sensor
Optional
Input
Remote Display Module (RDM)
or
Remote Start / Stop Module
or
Input
Outdoor
Sensor
Included
Input
Melt/Idle
Demand
Output
System
Pump
Input
115 V (ac)
Power
Supply
OR
Melt Demand
Idle Demand
WWSD
Water
Melting
Start
Menu Item
Stop
Do not apply power
Output
Boiler
Output
Turn on injection
pump
Output
Turn on relay for
electric cables
Output
Melt Relay
OR
OR
Signal wiring must be rated at least 300 V.
900-03
Designed and assembled in Canada by
tekmar Control Systems Ltd.
Power 115 V ± 10% 50/60 Hz 600 VA
Relays 230 V (ac) 5 A 1/3 hp
Demand 20 to 260 V (ac) 2 VA
Meets Class B:
Canadian ICES
FCC Part 15
H2028D
Date Code
• Slab Outdoor Reset
• Automatic snow detection and melt control (with 090 sensor)
• Temporary Idle
• Manual Override
• Warm Weather Shut Down
• Cold Weather Cut Out
• Remote display and adjustment capabilities
• Test sequence to ensure proper component operation
• Equipment Exercising
• CSA C US certified (approved to applicable UL standards)

Summary

User Interface Navigation

Control Button Functions

Explains the Menu, Item, Start, and Stop buttons for navigation and adjustment.

Sequence of Operation

General Operation and Exercise

Snow Melting Modes

Details Warm Weather Shut Down (WWSD) and Cold Weather Cut Out (CWCO) functions.

Status Indicators and Operations

System Status Definitions

Melting Enable;Disable

Manual Melting Enable

Details enabling the system via the control's Start button or external modules.

External Demand & Auto Control

External Melt;Idle Demand Signals

Automatic Melting with Sensor

Explains how the Snow/Ice Sensor 090 enables melting and the sensitivity setting.

Melting Operation Details

Initiating Melt Mode

Slab Temperature Management

Explains how slab sensors and outdoor sensors manage slab temperature.

Wiring and Connections

115 V (ac) Power Hookup

How to connect the main power supply to the control unit.

Terminal Connections

Melt;Idle Demand Input Wiring

Sensor Wiring Configuration

Details wiring for Outdoor Sensor, Snow/Ice Sensor 090, or Slab Sensor.

Wiring Verification

Sensor Wiring Resistance Test

Procedures for testing sensor wiring and resistance using a multimeter.

Control Settings and Access

DIP Switch Configuration

Details the function of DIP switches for access level and demand mode configuration.

Access Level Management

Adjust Menu Details

Time and Temperature Settings

Configuration for Run Time, Add Melt, Melting temperature, and Idling temperature.

Mode and System Settings

Control Testing and Max Heat

Built-in Test Routine

Troubleshooting Procedures

Systematic Troubleshooting Approach

Provides a step-by-step routine for diagnosing heating system problems.

Component Testing and Monitoring

Emphasizes testing contacts, voltages, sensors, and monitoring system behavior.

Error Message Reference

Control System Error Codes

Lists error displays like CTRL ERR (EE W, ADUS, MNTR, SCHD, MISC) and their causes.

Sensor Error Codes

Details errors related to tN2 connection, outdoor sensor, and slab sensor shorts.

Advanced Error and Warning Messages

Slab and Yellow Sensor Errors

Covers slab sensor open circuits and yellow sensor short/open circuits.

Water Detection and Heater Errors

Explains errors for water detection circuits, heater malfunction, and internal sensor over-temp.

No Heat Warning Message

Control Technical Data and Warranty

665 Control Specifications

Tekmar 665 Specifications

General

Brand	Tekmar
Model	665
Category	Security Sensors
Language	English