tekmar 521 Programmable Thermostat Installation - Manual (Page 4)

© 2014 521_D - 01/14
4 of 28 A Watts Water Technologies Company
Preparation
Installation
Choose the placement of the thermostats early in the construction process to enable
proper wiring during rough-in.
Consider the following:
Interior Wall.
Keep dry. Avoid potential leakage onto the control.
Relative Humidity less than 90%. Non-condensing environment.
No exposure to extreme temperatures beyond 32-122°F (0-50°C).
No draft, direct sun, or other cause for inaccurate temperature readings.
Away from equipment, appliances, or other sources of electrical interference.
Easy access for wiring, viewing, and adjusting the display screen.
Approximately 5 feet (1.5 m) off the finished floor.
The maximum length of wire is 500 feet (150 m).
Strip wire to 3/8" (10 mm) for all terminal connections.
Use standard 5 conductor, 18 AWG wire. •
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Installation Location ------------------------------------------------ ------------------------------------------------
tekmar or jeweller screwdriver
Phillips head screwdriver •
• Wire Stripper •
Tools Required ----------------------------------------------------- -----------------------------------------------------
Materials Required ------------------------------------------------- -------------------------------------------------
18 AWG LVT Solid Wire
(Low Voltage Connections) •
Removing The Thermostat Base
To remove the thermostat base:
Locate the tab on the bottom of the thermostat.
Push the tab with either your thumb or with a
screwdriver.
Lift the thermostat front away from the
thermostat’s base. •
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