tekmar 552 Thermostat Installation - Manual (Page 11)

© 2014 552_D - 09/14
11 of 44 A Watts Water Technologies Company
Switch Settings
Switch Position Action
1
ON
LOCK ACCESS LEVEL
Thermostat is locally locked and the access level cannot be changed.
Set to Lock when installation has been completed.
OFF
UNLOCK ACCESS LEVEL
Thermostat is unlocked and the access level may be changed. Go to
the Toolbox menu to change the access level. Set to Unlock during
the installation process.
Note: tekmarNet
® system controls include a Global Lock that locks all
connected thermostats. Set the tekmarNet ® system control to unlock
to allow access level adjustment on all connected thermostats.
tNt 552
One Stage Heat
Mmm YYYY
Lot # 12345
Meets Class B:
Canadian ICES
FCC Part 15
Power: 24 V ±10% 50/60 Hz 1.7 VA
Relay: 24 V (ac) 2 A
1051-03
Switch Se
ttings:
Use at least 75°C conductors
For instructions see brochure Designed and
assembled in Canada
Se
tback
Scene None
ON
Cool Mas
ter 1
Off Unlock
1 2 3
/
tekmarNet
Thermostat 552
One Stage Heat
Mmm YYYY
Lot # 12345
Meets Class B: ICES & FCC Part 15
Power: tN2 or 24 V (ac) ±10% 1.8 VA
Relay: 24 V (ac) 2 A
1051-03
Switch
Settings
www.tekmarcontrols.com
Designed and assembled in Canada
Lock
Unused
Unlock
/
ON
1 2
Back of
Thermostat