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Watts tekmar 294 User Manual
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Installation, Operation and Maintenance Manual
Smart Boiler Contr
ol 294
IOM-T
-294
W
ARNING
!
Please read carefully before proceeding with
installation.
Y
our f
ailure to follow any attached
instructions or operating parameters may lead to the
product’
s failure.
Keep this Manual for future reference.
2
Table of Contents
Table of Contents
2
Important Safety Information
3
Radio Frequency Statement
4
Installation
5
Installation Location
5
Wiring Schematic
6
Wiring Instructions
7
Testing the Sensor Wiring
9
User Interface
15
Power on
15
Lock Screen
15
Home Screen
16
Status Icons
16
System Inputs Screen
17
System Outputs Screen
17
Boiler Supply Chart Screen
17
Boiler Status List Screen
18
Boiler Status Carousel Screen
18
Boiler Hours or Cycles Screen
18
Menu Screen
19
Navigation
19
Menus
20
Home Screen
20
Settings Menu
21
Schedule Menu
29
Notifications Menu
30
Overrides Menu
30
About Menu
32
Help Menu
32
Sequence of Operation
33
Heating Calls
33
Central Heating Operation
33
Domestic Hot Water (DHW) Operation
35
System Setup and Operation
36
Constant Setpoint Operation
38
Remote Setpoint Call
39
Call
39
Boiler Operation
40
Boiler Modbus Communication
42
System Operation
43
Pump Operation
46
Combustion Air Damper Operation
46
Schedule
47
Time Clock
47
Troubleshooting
48
Errors and Alerts
48
Technical Data
52
Limited Warranty and Product Return Procedure
52
4
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Watts tekmar 294 Specifications
General
Category
Controller
Number of Zones
4
Enclosure Rating
NEMA 1
Model
294
Input Voltage
24 VAC
Output Voltage
24 VAC
Operating Temperature
0 to 50°C
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