Section 7: Installation of Heat and Electricity Meters
Page 26
7.2.5 Fitting the return temperature sensor
The return temperature sensor MUST be fitted in return
sensor pocket, as described below, and not fitted to (or on)
the return pipe in any other way.
!
CAUTION
To fit the return temperature sensor, use the following procedure:
1. Locate the return temperature sensor point on the return pipe
above the flow meter. Refer to Figure 7-12.
2.
If the heating system has already been filled with water
ensure that the valves located both above and below this
section of pipe are CLOSED before removing the plug from
the sensor point.
NOTE
!
Unscrew the plug from the temperature sensor point.
3. Using a suitable sealant or PTFE tape, fit one of the two
temperature sensor pockets provided into the sensor point and
tighten, but only enough to achieve a seal.
4. Slacken off the small clamp screw on the sensor pocket and fit
the stainless steel sensor fully into the sensor pocket. To ensure
the best operation of the temperature sensor (and heat meter),
first inject some heat conducting grease (not provided) into the
sensor pocket before inserting the sensor.
The sensor MUST be fitted fully into the pocket as far as it will
go. Then tighten the small clamp screw to secure the sensor
into the pocket. DO NOT OVERTIGHTEN!
5. Carefully route the cable from the return temperature sensor
through the same grommet as the flow meter cable (in the side
of the lower part of the control panel) and up to the integrator
unit, installed immediately above the control panel fascia.
6. Pierce the cable grommet located in the lower face of the
integrator unit (below terminals 3 and 4) and pass the flow
meter cable through.
7. The return temperature sensor must be connected to terminals
3 and 4 on the terminal block inside the Integrator unit, as
follows:
•
Red wire – terminal 3
•
White wire – terminal 4
Refer to Figure 7-13 Integrator connection diagram.
Ensure that the cable is securely held under the metal cable
clamp.
In order to comply with the Measuring Instruments Directive
(MID) 2004/22/EU the flow meter cable MUST NOT be
shortened. Any excess cable should be gathered up (coiled
up) in a suitable location, i.e. where it will not restrict access
to any component (valve, pump, etc.) within the boiler casing.
NOTE
!
7.2.6 Fitting the flow temperature sensor
The flow temperature sensor MUST be fitted in flow sensor
pocket, as described below, and not fitted to (or on) the
return pipe in any other way.
!
CAUTION
To fit the flow temperature sensor, use the following procedure:
1. Locate the flow temperature sensor point. This is in the flow
pipe just above the insulated boiler jacket return pipe above the
flow meter. Refer to Figure 7-3.
2.
If the heating system has already been filled with water
ensure that the valves located both above and below the flow
temperature sensor point are CLOSED before removing the
plug.
NOTE
!
Unscrew the plug from the temperature sensor point.
3. Using a suitable sealant or PTFE tape, fit one of the two
temperature sensor pockets provided into the sensor point and
tighten, but only enough to achieve a seal.
4. Slacken off the small clamp screw on the sensor pocket and fit
the stainless steel sensor fully into the sensor pocket. To ensure
the best operation of the temperature sensor (and heat meter),
first inject some heat conducting grease into the sensor pocket
before inserting the sensor.
The sensor MUST be fitted fully into the pocket as far as it will
go. Then tighten the small clamp screw to secure the sensor
into the pocket. DO NOT OVERTIGHTEN!
5. Carefully route the cable from the flow temperature sensor
through the same grommet as the flow meter cable (in the side
of the lower part of the control panel) and up to the integrator
unit, installed immediately above the control panel fascia.
6. Pierce the cable grommet located in the lower face of the
integrator unit (below terminals 1 and 2) and pass the flow
meter cable through.
7. The flow temperature sensor must be connected to terminals
1 and 2 on the terminal block inside the Integrator unit, as
follows:
•
Red wire – terminal 1
•
White wire – terminal 2
Refer to Figure 7-12 Integrator connection diagram.
Ensure that the cable is securely held under the metal cable
clamp.
In order to comply with the Measuring Instruments Directive
(MID) 2004/22/EU the flow meter cable MUST NOT be
shortened. Any excess cable should be gathered up (coiled
up) in a suitable location, i.e. where it will not restrict access
to any component (valve, pump, etc.) within the boiler casing.
They should run independently of power cables to limit
interference.
NOTE
!
Summary of Contents for Aerona3 Series
Page 57: ...Section 13 Flue System and Air Supply Page 57 Figure 13 8 Flue clearances...
Page 77: ...Section 19 Spare Parts Page 77 Figure 19 4 15 21kW baffles Figure 19 5 21 26kW baffles...
Page 84: ...Appendix A Page 84 Appendix A...
Page 85: ...Appendix A Page 85...
Page 86: ...Appendix A Page 86...
Page 87: ...Appendix A Page 87...
