metrofires Side Wetback Installation Instructions

Metro Side Wetback Installation Instructions
WARNING!
Important Information
• 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
• Wetbacks must be connected with water before operating the
fire and available to the wetback while the fire 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
• 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
• 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.
Installation Instructions - Tiny and Wee Series models
1. For best access during this process remove the wood fire door and
internal baffle, place both in a safe area so as not to damage parts or
painted surface. Removal of the baffle allows for easy access through
the flue spigot for wetback installation.
2. At all times, place the removed fastenings in a safe location as these
will be needed to refit the necessary parts.
3. Remove both the rear heat shield and the rear inner heat shield. Both
are fixed into position with 8g pozi screws and the inner heat shield is
bolted at the top only with one M6 fastening.
4. As you look from the rear of the appliance undo the very right hand
M6 bolt in the spreader bar (illustrated opposite).
5. Spread the side panel away from the rear fixing point to provide
access (illustrated opposite).
6. Remove all countersunk M6 fastenings in the left hand side wall of
the firebox. These are used for fixing the wetback to the outside wall
of the appliance.
7. Apply a liberal amount of Pioneer fire cement (supplied) around the
full perimeter of the flat face and over the internal flat area. This is
required for optimum heat transfer.
8. Insert the wetback into the gap provided by spreading out the side panel.
Note the lower pipe is positioned below the spreader bar. Fix in place
with the provided countersunk fastening and nut at the rear top slot of
the wetback first. Tighten but allow for a small amount of movement.
9. Line up the front M6 tapped hole in the casting with the front 8mm dia
hole in the firebox wall. Using a second countersunk fastening screw
into the casting from inside the firebox, discard the M6 nut. Tighten
both fastenings to ensure a tight fit to the firebox. Insert and fasten the
remaining rear fastening.
Suitable for installation into the following models:
• Tiny Rad Woody • Wee Ped
• Wee Rad Leg • Classic Rad
• Wee Rad Base • Rad Plus
• Wee Rad Woody • LTD Rad Plus
Please note: This wetback fits to the left hand side of the firebox externally.
Left hand is deemed as you are looking at the appliance from the front.
• Your Metro fire requires the rear heat shields to be removed and the
circular knock outs removed for copper pipe penetration
• It is recommended to fit the wetback prior to the wood fire installation.
See overleaf for wetback installation instructions for the
Metro Classic Rad and Rad Plus models
Right hand M6 bolt
undone and side panel
'spread' for access
10. Reassemble the rear heat shields, fitting the inner heat shield first.
Note: Both heat shields require the circular knock out plates removed
prior to reassembly. It is absolutely critical that these heat shields are
placed back onto the appliance correctly with all bolts and screws in
place and done up tightly.
11. The wetback is now fitted and ready for connection into your hot water
cylinder using standard plumbing practice.
Wetback installed and side panel
re-fastened. Heat shields to go
back on for completion