Install Instructions

© 2012 557_D - 08/12
6 of 48
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.
2
ON
Not used
OFF
Not used
User Test Sequence
Heat Test Cool Test
Step Relay(s) Closed Step Relay(s) Closed
O Relay OFF Rc-O/B is opened O Relay ON Rc-O/B
B Relay ON Rc-O/B B Relay OFF Rc-O/B is opened
Fan Rc-G Fan Rc-G
Y1 Heat Rc-Y1 and Rc-G Y1 Cool Rc-Y1 and Rc-G
Y2 Heat Rc-Y1 and Rc-Y2 and
Rc-G
Y2 Cool Rc-Y1 and Rc-Y2 and
Rc-G
W2 Heat Rh2-W2 W2 Cool Rh2-W2
W1 Heat Rh1-W1 Humidify* ACC-ACC
Humidify* ACC-ACC Dehumidify* ACC-ACC or Rc-Y2
Dehumidify* ACC-ACC or Rc-Y2 HRV* Rc-Y2
HRV* Rc-Y2 Valve* ACC-ACC or Rc-Y2
Valve* ACC-ACC or Rc-Y2
*availability of test step and additional relay closures based upon Setup menu settings.
W1Rh1 Rh2 W2 ACC
Y2 Y1 Rc G1 O/B
S3
0-10
Vdc
Com
S2 S1
tN4
C
R
Y2 Y1 Rc G1 O/