Application Guide

ManualsBrandsTekmar ManualsHeating SuppliesWifi Snow Melting Control

A - 10/16

670

10/16

Snow Melting

Replaces: New

WiFi Snow Melting Control 670

Application Brochure

Application Page

Dedicated Boiler 2

Dedicated Boiler and Mixing Valve 4

Shared Boiler and Heat Exchanger 6

Shared Boiler and Mixing Valve with Optional Tandem Sensors 8

Shared Boiler and Injection Mixing 10

Modulating Steam Valve 12

Electric Cable 14

Multiple Zones with Multiple Boilers and Shared Mixing Valve 16

Mod Boiler

WiFi Snow Melting Control 670

Boiler & Mixing / Electric

Power 115 V (ac) ±10%, 60 Hz, 20 VA

Relays 230 V (ac) 5 A 1/3 hp

Var. Pump 230 V (ac) 2.4 A

1084-01

Designed and assembled in Canada

Date Code

H2055A

1 kΩ max 1 kΩ max

Opn

Var

–

Mix V/mA

Pwr

Mix

Cls

Blu

Yel

Brn/

Slab

Man

Melt

Blk/

Com

Red

Boiler 1

Stage 1

Boiler 1

Stage 2

Heat

Relay

System

Pump–

23 24 25

Do Not Apply Power

Mix

Sup

Com

Boil

Out

Com

tN4

13 282726

Power

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, IC: 4511-CC3100M0DR1

Meets Class B: FCC Part 15B, ICES-003

Manual Melt

Time Left

- - : - - hrs

Outdoor

32 °F

Settings Status

System is Melting

Stop

10:30 AM

Warming Up

The WiFi Snow Melting Control 670 operates hydronic and electric heating equipment designed to melt snow and/or

ice from roads and walkway surfaces. The control works with the tekmar Snow/Ice Sensor 090 or Snow Sensor 095 to

automatically detect snow or ice and operates a single boiler, steam valve, or electric cable to supply heat to the slab.

Boiler return protection is provided to non-condensing boilers using a mixing valve or variable speed injection mixing

pump. The tekmar Connect mobile application allows for remote operation and monitoring of the snow melting system

from anywhere in the world.

Summary of content (20 pages)

PAGE 1
Application Brochure 670_A WiFi Snow Melting Control 670 10/16 Snow Melting Replaces: New The WiFi Snow Melting Control 670 operates hydronic and electric heating equipment designed to melt snow and/or ice from roads and walkway surfaces. The control works with the tekmar Snow/Ice Sensor 090 or Snow Sensor 095 to automatically detect snow or ice and operates a single boiler, steam valve, or electric cable to supply heat to the slab.
PAGE 2
Dedicated Boiler A670-1 Mechanical Description The WiFi Snow Melting Control 670 operates a boiler that is dedicated for the snow melting system. The system is piped in primary-secondary to allow constant flow rates through the low-mass boiler and filled with glycol to prevent freezing. • The system pump operates continuously when heating the slab during melting/idling/storm operation. • The boiler pump cycles on and off together with the boiler.
PAGE 3
Dedicated Boiler A670-1 Electrical For product literature: Pour la documentation du produit: Para la literatura del producto: tekmarControls.com Time Left - - : - - hrs 10:30 AM Outdoor 32 °F 1084-01 Designed and assembled in Canada Power 115 V (ac) ±10%, 60 Hz, 20 VA Relays 230 V (ac) 5 A 1/3 hp Var. Pump 230 V (ac) 2.
PAGE 4
Dedicated Boiler and Mixing A670-2 Mechanical Description The WiFi Snow Melting Control 670 operates a boiler and a mixing valve that is dedicated for the snow melting system. The boiler is piped in primary-secondary to the system to allow constant flow rates through the low-mass boiler. The entire system is filled with glycol to prevent freezing. • The system and boiler pumps operate continuously when heating the slab during melting/idling/storm operation.
PAGE 5
Dedicated Boiler and Mixing A670-2 Electrical For product literature: Pour la documentation du produit: Para la literatura del producto: tekmarControls.com Time Left - - : - - hrs Outdoor 32 °F 10:30 AM 1084-01 Designed and assembled in Canada Power 115 V (ac) ±10%, 60 Hz, 20 VA Relays 230 V (ac) 5 A 1/3 hp Var. Pump 230 V (ac) 2.
PAGE 6
Shared Boiler and Heat Exchanger A670-3 Mechanical Description The WiFi Snow Melting Control 670 operates a snow melting zone warmed from a heat source that is shared with other loads in a building. A heat exchanger isolates the glycol-filled snow melting system loop from the water-filled main heating system. • The system pump operates continuously when heating the slab during melting/idling/storm operation.
PAGE 7
Shared Boiler and Heat Exchanger A670-3 Electrical For product literature: Pour la documentation du produit: Para la literatura del producto: tekmarControls.com Time Left - - : - - hrs 10:30 AM Outdoor 32 °F 1084-01 Designed and assembled in Canada Power 115 V (ac) ±10%, 60 Hz, 20 VA Relays 230 V (ac) 5 A 1/3 hp Var. Pump 230 V (ac) 2.
PAGE 8
Shared Boiler and Mixing Valve with Optional Tandem Sensors A670-4 Mechanical Description The WiFi Snow Melting Control 670 operates a snow melting zone warmed from a heat source that is shared with other loads in a building. The system uses a mixing valve to regulate the water temperature and a heat exchanger isolates the glycolfilled snow melting system loop from the water-filled main heating system.
PAGE 9
Shared Boiler and Mixing Valve with Optional Tandem Sensors 654 A670-4 Electrical 670 For product literature: Pour la documentation du produit: Para la literatura del producto: tekmarControls.com Time Left - - : - - hrs 10:30 AM Outdoor 32 °F 1084-01 Designed and assembled in Canada Power 115 V (ac) ±10%, 60 Hz, 20 VA Relays 230 V (ac) 5 A 1/3 hp Var. Pump 230 V (ac) 2.
PAGE 10
Shared Boiler and Mixing Injection Pump A670-5 Mechanical Description The WiFi Snow Melting Control 670 operates a snow melting zone warmed from a heat source that is shared with other loads in a building. The system uses a variable speed injection pump to regulate the water temperature and a heat exchanger isolates the glycol-filled snow melting system loop from the water-filled main heating system. • The system pump operates continuously when heating the slab during melting/idling/storm operation.
PAGE 11
Shared Boiler and Mixing Injection Pump A670-5 Electrical For product literature: Pour la documentation du produit: Para la literatura del producto: tekmarControls.com Time Left - - : - - hrs Outdoor 32 °F 10:30 AM 1084-01 Designed and assembled in Canada Power 115 V (ac) ±10%, 60 Hz, 20 VA Relays 230 V (ac) 5 A 1/3 hp Var. Pump 230 V (ac) 2.
PAGE 12
Modulating Steam Valve A670-6 Mechanical Description The WiFi Snow Melting Control 670 operates a modulating steam valve and a steam-to-water heat exchanger to heat a glycolfilled snow melting system. • The system pump operates continuously when heating the slab during melting/idling/storm operation. • The slab temperature is controlled by adjusting the modulating steam valve position. • The boiler relay is closed while the modulating steam valve is open. This provides a signal to fire the steam boiler.
PAGE 13
Modulating Steam Valve A670-6 Electrical For product literature: Pour la documentation du produit: Para la literatura del producto: tekmarControls.com Time Left - - : - - hrs Outdoor 32 °F 10:30 AM 1084-01 Designed and assembled in Canada Power 115 V (ac) ±10%, 60 Hz, 20 VA Relays 230 V (ac) 5 A 1/3 hp Var. Pump 230 V (ac) 2.
PAGE 14
Electric Cable A680-7 Mechanical Description The WiFi Snow Melting Control 670 operates an electric cable snow melting system. • The electric contactor is cycled on and off based on the slab load. The system operation is dependent on sensor selection, as listed in the table below.
PAGE 15
Electric Cable A670-7 Electrical For product literature: Pour la documentation du produit: Para la literatura del producto: tekmarControls.com Time Left - - : - - hrs Outdoor 32 °F 10:30 AM 1084-01 Designed and assembled in Canada Power 115 V (ac) ±10%, 60 Hz, 20 VA Relays 230 V (ac) 5 A 1/3 hp Var. Pump 230 V (ac) 2.
PAGE 16
Multiple Zones with Multiple Boilers and Shared Mixing Valve A670-8 Mechanical Description The system has two snow melting zones heated by two boilers. The water temperature is regulated by a shared mixing valve for the two snow melting zones. The boilers and mixing valve are operated by a Universal Reset Module 423, Power Manager 346 and Mixing Expansion Module 444. Each snow melting zone is operated by a WiFi Snow Melting Control 670.
PAGE 17
A670-8 Mechanical 670 Application Settings Setting Name Value Application Mode PWM Zone Outdoor Sensor tekmarNet Boiler Type Control Legend B1, B2 = Modulating Boilers M1 = Actuator Motor 741 P1 = Zone 1 Pump P2 = Zone 2 Pump S1a = Zone 1 Snow/Ice Sensor 090 or 094 S1b = Zone 2 Snow/Ice Sensor 090 or 094 S2a = Zone 1 Snow Sensor 095 S2b = Zone 2 Snow Sensor 095 S3a = Zone 1 Slab Sensor 072 or 073 S3b = Zone 2 Slab Sensor 072 or 073 S4 = Outdoor Sensor 070 S5 = 423 Boiler Supply Sensor 082 S6 = 444
PAGE 18
Multiple Zones with Multiple Boilers and Shared Mixing Valve A670-8 Electrical Legend Mixing Expansion Module 444 Variable Speed / Floating Action / Modulating 1 tN4 2 3 C R Power Date Code S3a = Zone 1 Slab Sensor 072 or 073 S3b = Zone 2 Slab Sensor 072 or 073 S4 = Outdoor Sensor 070 S5 = 423 Boiler Supply Sensor 082 S6 = 444 Mix Supply Sensor 082 V1 = 3-Way Mixing Valve 710 through 714 X1 = Transformer 009 Cut for mA output B1, B2 = Modulating Boilers M1 = Actuator Motor 741 P1 = Zone 1 Pump P
PAGE 19
A670-8 Electrical 670 Application Settings Outdoor Sensor tekmarNet Boiler Type Control For product literature: Pour la documentation du produit: Para la literatura del producto: tekmarControls.com Time Left - - : - - hrs 10:30 AM Outdoor 32 °F 1084-01 Designed and assembled in Canada Power 115 V (ac) ±10%, 60 Hz, 20 VA Relays 230 V (ac) 5 A 1/3 hp Var. Pump 230 V (ac) 2.
PAGE 20
Specifications The following are the recommended specifications for the WiFi Snow Melting Control 670. • The control shall communicate with the Internet Cloud to provide remote starting, stopping and monitoring through an Android or Apple iOS mobile application or through a web browser. • The control shall have the ability to use a snow/ice sensor in order to automatically detect snow or ice and begin operation of the system.