Specifications
7
Flue installation
If the home is in a classied “clean air zone”, and dependent
on requirements/restrictions which may be imposed by your
local council, you may or may not be able to install a water
heating device. If in doubt consult your local Metro retailer.
Only Pioneer’s cast jacket wetback system should be tted to
a Metro; alternative wetbacks will void the Metro’s emission
approvals and may seriously affect the performance of the
appliance and void the owner’s warranty.
Note; 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.
The wetback is tted to the inside rear of the rebox, unless as
detailed in the points below. The connection pipe heights are
illustrated and detailed on the previous page 6. Please note:
• Wetback connections for the Tiny models are 92mm left
of the ue centre. The Wee Rad is 226mm, Xtreme Rad,
Xtreme Rad Base & Xtreme Ped are 275mm left of the ue
centre. All other Metro models are 140mm left of the ue
centre, facing the Metro/wall; the return pipe connection is
directly above the inlet connection.
• The Wee Rad, Xtreme Rad, Xtreme Rad Base & Xtreme Ped
wetback position is to the outside left hand rebox wall.
See specic instruction in the ‘Side Wetback’ box for these
appliances.
• Reduced height pedestals are available for certain models
to reduce wetback connection heights.
• 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.
To t the wetback proceed as follows: (For Wee Rad model
or any Xtreme Series model, then please follow instructions
included in the side wetback box)
1. Remove the rear panel of the Metro by removing the four
pozi drive screws. Remove the two pre-punched knockouts
from this panel.
2. Two further knockouts will be visible on the inner rear
heatshield; remove these also. Once these are removed
6mm nuts will be visible through the knockout holes.
3. Open the Metro’s door and locate two bolts securing the
pressed washers which are visible on the left hand side of
the rebox for both inlet and outlet connection points.
4. A further three bolt heads will also be visible on the inside
rear wall of the rebox; these are threaded into the 6mm
thick rebox. Remove all three.
5. Using the tube of sealant supplied with the wetback, apply
a liberal bead of sealant around both the two connection
pipes and also the outer circumference of the wetback
which will face the inside rear wall of the rebox. This will
completely seal the wetback to the inside rear wall of the
re on installation.
6. Fit the wetback into the rebox and carefully pass the
connection pipes through the holes in the rear of the
rebox. Securely attach the wetback using the three bolts
previously removed from the rear face of the rebox, tting
them through the slots provided in the wetback’s jacket.
7. The wetback is now ready for connection to the storage
cylinder by a registered plumber.
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.
It is recommended that all Metro freestanding wood res be
installed with the energy efcient Metro ECO ue system which
comes complete with a detailed installation manual. This
installation manual must be presented with your application to
gain consent with your local council.
A copy of the installation manual can be downloaded from
www.metrores.co.nz, or a copy can be obtained from your
Metro retailer. Any alternative ue system must comply with
and be installed as detailed in AS/NZS 2918:2001, and a copy
of the installation manual must also be presented with your
application to gain consent with your local council.
All Metro’s require a 150mm diameter ue. Please note:
• All joints in the ue pipe must be sealed with Pioneer re
cement (or similar) and riveted.
• The base of the ue pipe must be sealed into the outlet of
the Metro’s ue outlet. This is critical for optimum operation.
• Refer “Important Information” on page 2.
• The ue systems 150mm diameter ue pipe must terminate
a minimum of 4.6 metres above the top surface of the oor
protector.
Pioneer Flueshield
All Metro’s have been tested with
a Pioneer double ue mounted
shield. For the Metro to be installed
with minimal clearances as the
clearance chart states, only the
Pioneer double mounted ue
shield can be used. All other
ue shields will invalidate the
installation.
The Metro can be installed without a
ue shield, if this is the case it needs to be installed as AS/
NZS 2918:2001 stipulates.
ECO Flue System Installation Manual
ECO Flue Systems
Freestanding Flue Systems
ECO Flue System Installation Options ............ 2
ECO Base Flue System & ECO Option Kits .... 3
ECO Base Flue System Kit Installation ........4-5
ECO Option Kit Installation............................. 5
Insert Flue Systems
ECO Insert Flue System Kit Installation .......6-7
ECO Flue System Minimum Heights ..............8
Wetbacks