Tekmar 518 Thermostat
The Thermostat 518 accurately controls the room temperature for a hydronic heating zone using Pulse Width Modulation (PWM) technology. Simple up and down buttons and a display with large type make this thermostat easy to read and use. The 518 automatically detects a single auxiliary sensor to measure either outdoor, floor, or remote room temperature. This easy-to-install thermostat is a direct replacement for tekmar Thermostats 507 and 508.
PRODUCT OVERVIEW
Specifications
| Thermostat 518 One Stage Heat | |
| Literature | 518_C, 518_D, 518_Q, 518_U |
| Control | Microprocessor control. This is not a safety (limit) control |
| Packaged weight | 0.53 lb. (240 g) |
| Dimensions | 3-11/16″ H x 3″ W x 15/16″ D (94 x 76 x 24 mm) |
| Enclosure | White PVC plastic, NEMA type 1 |
| Approvals | Meets Class B: ICES & FCC Part 15 |
| Ambient conditions | Indoor use only, 32 to 122°F (0 to 50°C), RH ≤90% non-condensing |
| Power supply | 10 to 30 V (ac/dc), 50/60 Hz, 1.8 VA standby, 56 VA max fully loaded, Class 2 |
| Relay | 30 V (ac/dc) 2 A, Class 2 circuits |
| Sensor | NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892 |
| –Included | None |
| –Optional | tekmar type # 070, 072, 073, 076, 077, 079, 084 |
| Warranty | Limited 3 Year (See 518_D for full warranty) |
Energy Saving Features
- Away Input
- Auto Heating Cycle
Additional Features
- Radiant Floor Heating
- Pulse Width Modulation
- Auxiliary Sensor Input
- Outdoor & Floor Temperature Display
- Backlight
- Freeze Protection
Scan code for quick link to product page on tekmarControls.com
SPECIAL REQUIREMENTS
An auxiliary sensor must be used to measure any auxiliary sensor temperatures.
Sample Application Drawing
Below is a sample application drawing for this product. This application may include other tekmar products that are required for installation. More sample applications can be found at tekmarControls.com.
Sample Mechanical diagram
Legend
- P1 = Manifold Pump
- S1 = Optional Slab Sensor 079
- T1 = 24 V (ac) Transformer 009
- Z1 = Zone Valve
Sample Electrical diagram
All specifications are subject to change without notice
Tel: (250) 545-7749 • Fax: (250) 984-0815
tekmarControls.com
Other Manual:
Tekmar 518 Thermostat Quick Set-up Guide
Tekmar 518 Thermostat User Manual
Tekmar 518 Thermostat Installation and Operation Manual
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