Tekmar 671 - User Manual

© 2019 tekmar 671
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D - 08/19
671
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D
08/19
Snow Melting Replaces: New
WiFi Snow Melting Control 671
Installation & Operation Manual
Features
• Automatic software updates
• Automatic snow/ice detection
• Supports both inslab & retrofit aerial sensors
• Supports multiple zones with priority
• Manual Storm
• Idling
• Warm Weather Shut Down
• Cold Weather Cut Off
• EconoMelt
• Tandem Snow/Ice Detection
• Pump exercising
Introduction
The WiFi Snow Melting Control 671 is designed to operate mechanical equipment to melt snow off an outdoor slab. It can
be used in hydronic or electric snow melting applications. This product uses a tekmar snow/ice detection sensor in order
to automatically melt snow using Pulse Width Modulation (PWM) and slab Outdoor Reset to maintain slab temperature.
It is capable of controlling a single boiler, a system pump, and providing a signal when melting is enabled.
WiFi Snow Melting Control 671
Pulse Width Modulation
Power
Relays
1084-02
Designed and assembled in Canada
Date Code
H2058A
Blu
3
Yel
4
Brn/
5
Slab
Man
6
Melt
C
7
Blk/
2
Com
Red
1
Boiler Heat
Relay
System
Pump
11 12 13
Do Not Apply Power
Out
10
Com
9
tN4
8161514
Power
17
L
18
N
For product literature:
Pour la documentation du produit:
Para la literatura del producto:
tekmarControls.com
Disconnect all power before opening.
WARNING
Coupez l'alimentation avant l'ouverture.
ATTENTION
Desconecte la electricidad antes de abrir.
ADVERTENCIA
Signal wiring must be rated at least 300 V.
Le câblage du signal doit être d'une capacité d'au moins 300 V.
Cableado de señal debe tener una
calificación mínima de 300 V.
Contains WiFi transceiver:
FCC ID: Z64-CC3100M0DR1
Meets FCC Part 15B
IC: 4511-CC3100M0DR1
Meets CAN ICES-3 (B)/NMB-3(B)
115 V (ac) ±10%, 60 Hz, 20 VA
230 V (ac) 5 A 1/3 hp
This is a hole
Manual Melt
Time Left
- - : - - hrs
Outdoor
32 °F
Settings Status
System is Melting
Stop
10:30 AM
Warming Up

Summary

Critical Safety Guidelines and Installation Preparation

Essential Safety Warnings and Cautions

Covers safety alerts, symbols, and precautions for handling the control.

Required Tools, Materials, and Packaging Contents

Comprehensive Installation Guide

Rough-In Wiring and Input Power

Instructions for low-voltage and line-voltage wiring, including input power connections.

Equipment Wiring and Relay Connections

Wiring diagrams for boilers, pumps, heat relays, and system pumps.

Sensor Wiring and Testing Procedures

Steps for wiring and testing outdoor, snow/ice, and slab sensors.

Control Wiring Testing and Manual Override Access

User Interface Navigation and Operational Modes

Settings Menu and Parameter Configuration

Operational Modes and Sequence Explanations

Explanation of Melt, Idle, Storm, WWSD, CWCO, and PWM operational sequences.

Manual Control and Zone Management

How to manually start/stop melting, use overrides, and manage multiple zones.

Advanced Setup, Configuration, and Troubleshooting

System and Boiler Setup Options

tekmarNet System Integration and Priority

Troubleshooting System Error Messages

Identifying and resolving system errors using the provided error code list.

Frequently Asked Questions and Solutions

Tekmar 671 Specifications

General

Model	671
Type	Snow/Ice Melting Control
Output	Relay
Display	LCD
Number of Zones	1
Application	Snow melting systems
Input Voltage	24 VAC
Supply Voltage	24 V (ac)
Sensors	Slab sensor
Operating Temperature	0°C to 50°C
Dimensions	120 x 120 x 38 mm
Weight	0.5 lbs