Submittal Sheet
Job __________________________
Designer ______________________
Contact _______________________
© 2019 tekmar 671
_
C - 08/19
671_C
Submittal
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
• Equipment exercising
Specifications
WiFi Snow Melting Control 671 Boiler
Literature
671_A, 671_C, 671_D, 671_J, 671_U
Control Microprocessor control. This is not a safety (limit) control
Packaged weight 4.3 lb. (1960 g)
Dimensions 6-5/8" H x 7-9/16" W x 2-13/16" D (170 x 193 x 72 mm)
Display 3.5" color touchscreen
Enclosure Blue PVC plastic, NEMA type 1
Approvals
CSA C US, meets Class B: ICES & FCC Part 15
Ambient
conditions
-4 to 122°F (-20 to 50°C), < RH 90% non-condensing,
outdoor use permitted when installed inside a NEMA 3 enclosure
Power supply
115 V (ac) ±10%, 60 Hz, 20 VA
Relays
230 V (ac), 5 A, 1/3 hp
Manual melt call
Short or 0 - 32 V(ac)
Communications WiFi 802.11n, 2.4 GHz, WPA2 encryption
Sensor
NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
–Included
Outdoor Sensor 070
–Optional
tekmar type # 072, 073, 087, 090, 094, 095
Warranty Limited 3 Year (See 671_D for full warranty)
The WiFi Snow Melting Control 671 operates hydronic and electric heating equipment designed to melt snow and/or ice from
roads and walkways surfaces. The control works with 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.
WiFi Snow Melting Control 671
Front View
Side View Mounting Base
2–7/8"
(72 mm)
1/2" Knock-out
(x 5 back) (x 5 bottom)
CL
1/2"
(13 mm)
7/8"
(23 mm)
6–5/8"
(170 mm)
7–5/8"
(193 mm)
1–7/8" (49 mm)
1/2"
(14 mm)
3/16" (5 mm)
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