17
ixi gas pool and spa heater
Installation Manual
16
ixi gas pool and spa heater
Installation Manual
4.3.5
Precautions Against Common Venting
Seek the assistance of a Registered Professional
Engineer for proper design of a common venting
system.
AstralPool does not recommend using a common vent
to vent multiple appliances through a common duct.
However, if no other option is deemed available by the
installer, each appliance must have its own vent
temperature limit switch. All vent limit switches must
be wired in series so as to prevent any appliance from
firing in the event of a blocked vent. An outside draft
inducer must be installed to pull and create negative
pressure in the vent system. Refer to ANSI Z223.1 or
Australian standards applicable to Gas Pool Heaters,
AS/NZS 5263, AS/NZS 5601 for more information on
common venting multiple appliances.
Do not
connect
vent systems of different categories to the same
venting system.
4.3.6
Inspection and Replacement of Existing
Vent System With New Components
When replacing an existing pool heater with the IXI, it
is recommended that a new appropriate venting
system is installed with the new heater. However, if the
existing venting system must be used, be sure to
carefully inspect the existing system to ensure that it is
in good condition and appropriate for the IXI heater.
Replace any parts that are not in serviceable condition
before completing the installation.
Section 5. Gas Connections
Gas piping installation must be in accordance with the
latest edition of ANSI Z223.1 and the Australia
standard installations, AS/NZS 5601.1 along with all
local codes.
• Pressure Testing
: The heater must be isolated
from the gas supply piping system by closing
the individual manual shut off valve during any
pressure testing of the gas supply piping system
at test pressure greater than or equal to 3.5 kPa (.5
psi).
CAUTION
Permanent damage to the gas valve will occur if the
installation procedures are not followed correctly.
WARNING
CONVERTING THIS HEATER FOR USE WITH ANY OTHER
FUEL TYPE IS NOT RECOMMENDED BUT, WHEN
NECESSARY, SHOULD ONLY BE PERFORMED BY A
LICENSED AND QUALIFIED PROFESSIONAL, AND ONLY
AFTER CONTACTING ASTRALPOOL FOR THE PROPER
INSTRUCTIONS AND CONVERSION KIT.
All questions should be directed to the AstralPool
customer service center at 1300 186 875.
5.1
Supply Gas Requirements
• Refer to AS/NZS 5601.1 for correct gas inlet piping
length from the gas meter to the heater.
• Confirm correct supply pipe size and supply
pressure before proceeding with the installation.
• Check the gas meter to make sure it will supply
enough gas to the heater and any other
appliances using the same gas supply. If unsure,
contact your local gas utility to confirm.
• It is critical that the incoming gas supply pressure
at the heater is within the maximum and
minimum pressure requirements as outlined in
Table 2.
If the range of acceptable supply pressure
is not provided, the gas supply system to the
heater must be modified to meet pressure
requirements.
• Consider pipe fittings when determining gas pipe
sizing. For every elbow used add 900 mm (3’) to
straight pipe length.
• Install a manual gas shutoff valve outside the
heater body for service and safety. Never install
the shutoff valve inside the body of the heater.
• Where required by local code, install a sediment
trap/condensate fall and gas union in accordance
with Australia standard 5601. See
Figure 5
• Do not use a restrictive gas cock.
