tekmar 521 Programmable Thermostat Quick Start - Manual (Page 2)

© 2014 521_Q - 02/14 2 A Watts Water Technologies Company
4. Installation to Gang Box
5. Wiring
3 1 / 4 "
(83 mm)
Stud
Gang
Box
Thermostat
Front
Thermostat
Base
Adapter Plate 012
T T
C
N
L
R
2
1
8
7 3
4
5
6
R Y G
C R Y/W2 Rc G G Rh W1 S1 S2 Com
No Power
Boiler
Air
Conditioner
Pump
Transformer
Relay
003
Slab
Sensor
079