tekmar 529 Thermostat Installation - Manual (Page 5)

5 of 28 © 2011 D 529 - 12/11
Wiring 2nd Stage Heat ----------------------------------------------- -----------------------------------------------
The 529 thermostat can operate 2nd stage heat in two ways:
Method 1. Two-Stage Heating Using Wiring Center or Zone Manager
A two-stage thermostat is automatically detected when connected to Zone 1 or Zone
3 on a Wiring Center or Zone Manager. If there is no tN2 thermostat connected to
Zone 2 or Zone 4, these outputs will automatically operate the heating equipment
for 2nd stage heat.
Note: This 2nd stage wiring method is not compatible with the tN2 House Control
400, 401, 402, 403 and 406. Method 2 below must be used instead.
Method 2. Two-Stage Heating Using The Thermostat’s 2nd Stage Relay
If both Zone 2 or Zone 4 are in use, the 529 thermostat’s second stage relay must
be used. This relay will close when the thermostat calls for 2nd stage heat (Rh-W2),
and can be used to bring on the heating equipment.
Note: This 2nd stage wiring method must be used when a 529 thermostat is
connected to a House Control 400, 401, 402, 403, or 406.
Zone 1 Zone 2 Zone 3 Zone 4
tN2 tN2 tN2 tN2 tN2 tN2 tN2 tN2
1 2 3 4
1 2 3 4
tNt 529
529
Two Stage Heat
Relays: 24V (ac) 2A
6 W2
5 Rh
Mmm YYYY Lo
t # 1
23 45
Mee
ts Class B:
Canadian ICES FCC P
ar t 1 5
10 23-03
tN2
1
tN2
2
Switch Se
ttings:
For instructions see brochure
Use at least 65°C conductors
ON
Sensor
3
4
Se
tback
Scene Lock
No
t used
No
t used
Unlock Off Off No Power
R W
Zone 1 Zone 2 Zone 3 Zone 4
tN2 tN2 tN2 tN2 tN2 tN2 tN2 tN2
Zone 1 Zone 3
Stage 1 Stage 2 Stage 1 Stage 2
Two-Stage Terminal
Designation
Wiring Center or
Zone Manager
House Control
Wiring Center or
Zone Manager