8
• Connect 18 AWG or similar wire to the two terminals provided
in the enclosure and run the wires from the sensor to the
control . Do not run the wires parallel to telephone or power
cables . If the sensor wires are located in an area with strong
sources of electromagnetic interference (EMI), shielded cable
or twisted pair should be used or the wires can be run in a
grounded metal conduit . If using shielded cable, the shield
wire should be connected to the Com terminal on the
control and not to earth ground .
• Replace the cover of the sensor enclosure .
• Connect the 2 wires from the outdoor sensor to the Out
Sens terminals on the 294 (terminals 4 and 5) .
S1
S1
FCC ID: 2AHQR-11500A
Contains FCC ID:
2AC7Z-ESP32WROOM32E
QOQMGM12P0
Contains IC ID:
21098-ESPWROOM32E
5123A-MGM12P0
CAN ICES-3 (A)/NMB-3(A)
Class 2 Circuits
Input Power:
115 V (ac) ±10%, 60 Hz, 4 W
Relays:
230 V (ac), 5 A, 1/3 hp
Calls:
24 V (ac) or Short
Operating Temperature:
32°F to 122°F (0°C to 50°C)
Use Copper Conductors Only
Wi-Fi: 802.11b/g/n, 2.4GHz
12
10/100
Ethernet
14
13
Boiler
1
Enable
16
15
Boiler 2
Enable
18
17
Comb
Air Relay
20
19
Power
N
DANGER
DANGER
To Reduce the Risk of Electric
Shock - Do not connect to a
circuit operating at more than
150 volts to ground.
Pour réduire les risques
d'électrocution choc - ne pas
raccorder à un circuit
fonctionnant à plus de 150 V à
la terre.
L
5
4
Outdoor
7
6
Cond
Sensor
9
8
Aux
Sensor
11
10
DHW
2 3
1
Ref In Gnd
Pressure Sens
Call
+
Sensor
H2065A
Smart Steam Control 289
For product literature:
Pour la documentation
du produit:
tekmarControls.com
tektra 1150-02
Designed and assembled
in Canada
N
G
L
T T
T T
L N
G
Mounting the Universal Sensors
These sensors are designed to mount on a pipe or in a
temperature immersion well.
The Universal Sensor should be placed downstream of a pump
or after an elbow or similar fitting . This is especially important if
large diameter pipes are used as the thermal stratification within
the pipe can result in erroneous sensor readings . Proper sensor
location requires that the fluid is thoroughly mixed within the
pipe before it reaches the sensor .
Strapped to Pipe
The Universal Sensor can be strapped directly to the pipe
using the cable tie provided . Insulation should be placed
around the sensor to reduce the effect of air currents on the
sensor measurement .
Immersion Well
If a Universal Sensor is mounted onto 1" diameter L type cop-
per pipe, there is approximately an 8 second delay between a
sudden change in water temperature and the time the sensor
measures the temperature change . This delay increases con-
siderably when mild steel (black iron) pipe is used . In general,
it is recommended that a temperature well be used for steel
pipe of diameter greater than 1
1
⁄
4
" . Temperature wells are also
recommended when large diameter pipes are used and fluid
stratification is present . If the well is not a snug fit on the sen-
sor tube, use the heat transfer paste . Apply paste to the sides
of the sensor and place a pea-sized globule on the sensor tip .
Push the sensor into the well and when it bottoms out, press
firmly . The paste will be forced up the sides of the well .
Conduit Connection
The Universal Sensor and Universal Sensor Enclosure 080
(sold separately) are specifically designed to mount onto a
3
⁄
8
" ID temperature well that is supplied with an end groove .
To install the well, plumb a ‘tee’ into the pipe and fix the well
into the ‘tee’ . The 080 enclosure has a
7
⁄
8
" back knockout that
must be removed and fitted over the temperature well . The
Universal Sensor is then inserted into the well and the retaining
clip supplied with the enclosure is snapped onto the well end
groove . If the well has a threaded end, the installer must sup-
ply a standard threaded conduit retaining ring . The two wires
from the sensor are connected to the terminal block provided
in the enclosure . The other side of the terminal block is used to
connect wires from the control .
Bottom of
Enclosure 080
Universal
Sensor
Cable Tie
Sensor
Well
Retaining
Clip
Universal
Sensor
Condensate Sensor (Terminals 6, 7)
The included Universal Sensor 071 measures the condensate return temperature . This sensor should be
installed on the return on the furthest radiator or on the condensate return line in the mechanical room .
• Connect the wires to the condensate sensor terminals 6 and 7 .
FCC ID: 2AHQR-11500A
Contains FCC ID:
2AC7Z-ESP32WROOM32E
QOQMGM12P0
Contains IC ID:
21098-ESPWROOM32E
5123A-MGM12P0
CAN ICES-3 (A)/NMB-3(A)
Class 2 Circuits
Input Power:
115 V (ac) ±10%, 60 Hz, 4 W
Relays:
230 V (ac), 5 A, 1/3 hp
Calls:
24 V (ac) or Short
Operating Temperature:
32°F to 122°F (0°C to 50°C)
Use Copper Conductors Only
Wi-Fi: 802.11b/g/n, 2.4GHz
12
10/100
Ethernet
14
13
Boiler
1
Enable
16
15
Boiler 2
Enable
18
17
Comb
Air Relay
20
19
Power
N
DANGER
DANGER
To Reduce the Risk of Electric
Shock - Do not connect to a
circuit operating at more than
150 volts to ground.
Pour réduire les risques
d'électrocution choc - ne pas
raccorder à un circuit
fonctionnant à plus de 150 V à
la terre.
L
5
4
Outdoor
7
6
Cond
Sensor
9
8
Aux
Sensor
11
10
DHW
2 3
1
Ref In Gnd
Pressure Sens
Call
+
Sensor
H2065A
Smart Steam Control 289
For product literature:
Pour la documentation
du produit:
tekmarControls.com
tektra 1150-02
Designed and assembled
in Canada
N
G
L
T T
T T
L N
G
