Wetback Installation - Pioneer Metro Installation & Owner's Operation Manual

Wetback installation

WARNING!
• DO NOT connect to an unvented hot water system
• Install in accordance with AS 3500.4.1 or NZS 4603 and the
appropriate requirements of the relevant building code or codes.
CAUTION!
Important Information
• Fitting the water heater is best performed prior to installing the
Insert fi rebox into the fi replace cavity
• Wetbacks must be connected with water before operating the
fi re and available to the wetback while the fi re is in operation
• Wetback systems are not suitable for use in locations where the
water supply has lime content. Lime build up inside the coil will
eventually block the coil causing the wetback to fail. This is not
covered under warranty
• Rainwater collection tanks installed lower than the wetback that
use a water pump to supply the home, can cause problems if
the pump is not operational. In these situations either the type
of wetback or a roof header tank should be considered
• The Metro ECO Trend Insert is not approved with a wetback in a
clean air zone but can be installed with either Pioneer's 3kW or
4kW wetback option on properties of 2 hectares or greater.
Wetback Suitable for models:
Smart Booster • Smart Insert
• LTD Smart Insert
3kW Wetback
• ECO Trend Insert (properties of 2Ha+ only)
• LTD Trend Insert
4kW Wetback • ECO Trend Insert (properties of 2Ha+ only)
• LTD Trend Insert
Important Information
Water heating is another key feature of your Metro Insert wood fi re; all
Metro Insert models can be fi tted with a wetback, which are designed to
give maximum output with minimal effect on the operation of the fi re. Only
the Pioneer cast jacket wetback system should be fi tted to your Metro;
alternative wetbacks will void the Metro's emission approvals and may
seriously affect the performance of the appliance and void its warranty.
All Insert model wetbacks can be fi tted to either side of the fi rebox, with the
connection pipe heights detailed in the table below.
It is recommended the return pipe has a minimum rise of 1 in 12;
performance will reduce as the distance to the storage cylinder increases.
Wetback installation for the ECO and LTD Trend Insert
The Metro ECO Trend Insert is not approved with a wetback in a clean air
zone but can be installed with either Pioneer's 3kW or 4kW wetback option
on properties of 2 hectares or greater.
Pioneer's 3kW and 4kW wetback options are fi tted internally to either side
of the ECO Insert fi rebox and LTD Insert fi rebox.
To fi t the 3kW or 4kW wetback proceed as follows
1. Remove the brick from the inside of the fi rebox from the side the
wetback is to be fi tted too.
2. Expose the holes in the fi rebox wall through which the connection
pipes will pass.
The ECO and LTD Insert fi reboxes have 3mm pressed washers
covering these two openings and two 6mm bolts which are fi tted inside
the fi rebox near the connection holes, remove these also.
3. Using a hole saw or snips, prepare the cabinet for the connection
pipes. Note, these holes should be a neat fi t or have any excess gap
covered or fi lled with high temperature insulation.
4. Using the tube of sealant supplied with the wetback, apply a liberal
bead of sealant around both connection holes on the inside of the
fi rebox. On the rear of the wetback casting apply the remaining
contents of the tube equally around both connection pipes and also the
outer circumference of the wetback which will face the inside rear wall
of the fi rebox. This will completely seal the wetback to the inside rear
wall of the fi re on installation.
5. Fit the wetback into the fi rebox and position the connection pipes
through the connection holes in the fi rebox.
6. Fit two bolts through the slots provided in the wetback, align the wetback
so its front edge is parallel to the door opening and secure the bolts.
7. The wetback is now ready for connection to the storage cylinder by a
registered plumber.
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