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
1615
Boiler 2
Enable
1817
Comb
Air Relay
2019
Power
N
DANGERDANGER
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
54
Outdoor
76
Cond
Sensor
98
Aux
Sensor
1110
DHW
231
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
TT TT
L
NG
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
1615
Boiler 2
Enable
1817
Comb
Air Relay
2019
Power
N
DANGERDANGER
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
54
Outdoor
76
Cond
Sensor
98
Aux
Sensor
1110
DHW
231
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
TT TT
L
NG
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