Grant Aerona3 Series, Инструкции по установке и обслуживанию

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Section 6: Installation of the Heat Pump Page 20
Ensure that the electrical supply to the boiler has been
isolated at the lockable isolator BEFORE commencing the
installation and connection of the heat pump.
!
WARNING
6.1 Preparation for Installation
• Carefully remove the packaging from the heat pump and
remove it from the transit pallet.
• Position the heat pump in the final location required, raised
up from the base by approximately 100 mm on suitable anti-
vibration mounts.
This location may be either:
•
Next to the boiler, if the boiler is installed externally. Refer
to Section 6.2
OR
•
Freestanding outside, if the boiler is installed internally.
Refer to Section 6.3
If the boiler has been operated as a ‘stand-alone’ unit prior to
the installation of the heat pump, the loop between the heat
pump flow and return connections on the boiler (as described
in Section 5.4.1) will now have to be removed to connect the
heat pump.
NOTE
!
To avoid draining the heating system it is possible to close valves
in both the flow and return pipework within the boiler enclosure.
Referring to Figures 8-2 and 8-3, the isolation valves for the heat
meter flow sensor (13) and heat meter in the return (3) should be
closed before removing the loop between the heat pump flow and
return connections on the boiler.
6 Installation of the Heat Pump
6.2 Installing the Heat Pump – Next to Oil Boiler
(External oil boiler)
6.2.1 Electrical connections
1. Before moving heat pump into final position, remove the
wiring cover from the right hand end of the heat pump. Refer
to Section 6 of the Installation Instructions supplied with the
Aerona³ heat pump for details.
2. Remove the access panel from the front of the boiler casing.
Unscrew and remove the eight screws that secure the access
panel to the casing. Refer to Figure 12-1.
3. Working from inside the boiler enclosure, remove the internal
access cover in the left casing panel of the boiler. Slacken
off all six retaining screws. Lift the panel upwards and off the
retaining screws using the keyhole slots.
4. Remove the two screws from the top left edge of the boiler
enclosure and fit the top spacer plate provided with the boiler.
Re-fit and tighten the screws to secure it in position on the
boiler enclosure.
5. Manoeuvre the heat pump into position such that the top
spacer plate butts against the heat pump enclosure across the
full depth of the heat pump, giving a gap between the boiler
and heat pump of 100mm.
6. Make the heat pump electrical supply connection between the
heat pump electrical supply terminal block in the hybrid control
panel (in the boiler) and the electrical supply terminal block in
the Aerona³ heat pump.
Refer to Section 12 for electrical connection details. Figure 12-
10 shows the location of this terminal block and Figure 12-11 is
the connection diagram.
7. Make the heat pump controls connection between the heat
pump controls terminal block in the hybrid control panel (in the
boiler) and the Terminal PCB in the Aerona³ heat pump.
Refer to Section 12 for electrical connection details. Figure 12-
12 shows the location of this terminal block and Figure 12-13 is
the connection diagram.
8. Working from both outside and through the access opening
in the left casing panel of the boiler, as required, replace
the wiring cover on the right hand end of the heat pump and
secure in place with the three fixing screws.
9. Replace the internal access cover in the left casing panel of the
boiler. Fit the keyhole slots onto the six retaining screws. Pull it
down and tighten the screws to secure it in position.
10. When all wiring connections have been made, re-fit the upper
cover panel at the rear of the control panel and secure it using
the two screws at the top of the cover. Refer to Figure 12-3.
11. Then replace the lower cover panel at the rear of the control
panel and secure it using the two screws. Refer to Figure 12-3.
12. Replace the access panel on the front of the boiler casing. Re-
fit and tighten the eight screws to secure the access panel to
the casing. Refer to Figure 12-1.