tekmar 521 Quick Start [en, fr, es]
521_Q
Programmable Thermostat 521
Quick Setup Guide
1. Location
Behind
Door
Exterior
Wall
2. Remove Mounting Base
Zoning
Interior
02/14
Replaces: 01/14
Wall
5 feet
1.5 m
3. Installation to Wall
Thermostat
Thermostat
Front
A Watts Water Technologies Company
Base
1
Wall
© 2014 521_Q - 02/14
4. Installation to Gang Box
Thermostat
Front
5. Wiring
3
TT
Boiler
4
5
6
Relay
003
Pump
Adapter Plate 012
Stud
Thermostat
Base
3 1/4"
(83 mm)
Gang
Box
2
1
8
7
R Y G
R
C
C R
Y/W2
Rc GGRh W1 S1 S2Com
No Power
Slab
Sensor
079
Air
Conditioner
L
N
Transf orm er
A Watts Water Technologies Company
2
© 2014 521_Q - 02/14
6. Switch Settings
r
ON
OFF
Switch
Position
Action
LOCK ACCESS LEVEL
ON
1
Thermostat is locked and the access level cannot be changed. Set
to Lock when installation has been completed.
UNLOCK ACCESS LEVEL
Thermostat is unlocked and the access level may be changed. Go
OFF
to the Setup menu to change the access level. Set to Unlock during
the installation process.
H/C/F
ON
2
Thermostat is configured to operate one stage heating, one stage
cooling and fan.
1H OR 2H
OFF
Thermostat is configured to operate one or two stage heating with
a fan.
7. User Interface
MIN
MAX
Sa
FrThWeTuMoSu
P
F
F
Floo
MODE
Heat Cool
Off
A Watts Water Technologies Company
Room Floor
Heat On
3
Cool On
© 2014 521_Q - 02/14
8. Critical Settings
Press and hold down both the
and buttons together to enter the Programming
Menus.
While in the Programming Menus, the MODE button changes function to become the
MENU button.
Press the MENU button to change from one menu to the next.
While in the Programming Menus, the HOLD button changes function to become the
PRGM (program) button.
Press the PRGM button to enter the menu.
While inside a menu, the HOLD button changes to become the ITEM button.
Press the ITEM button to change from one setting to the next.
Setting Display
ACCESS
Selects the access level of the thermostat, which determines
which menus and items are available.
SENSOR 1
Select the type of auxiliary sensor 1.
SENSOR 2
Select the type of auxiliary sensor 2.
ROOM SENSOR
Select if the built-in room temperature sensor is on or off.
Room
W2 RELAY
Select if a second stage heat is available.
W2 DELAY
Select the time delay of that the second stage must wait
before turning on.
W2 DIFFERENTIAL
Select the differential below the Set Heat setpoint at
which the second stage heat can turn on.
FAN MODE
Select how the fan should operate together with the W1,
W2 or Y relays.
For a full list of settings and operational details, please refer to the thermostat
Installation and Operation Manual (521_D) available from www.tekmarControls.com
Product design, software and literature are Copyright ©2014 by tekmar Control Systems Ltd.,
A Watts Water Technologies Company. Head Offi ce: 5100 Silver Star Road, Vernon, B.C.
Canada V1B 3K4, 250-545-7749, Fax. 250-545-0650
All specifications are subject
to change without notice
4 521_Q - 02/14.
Web Site
: www.tekmarControls.com
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