Zodiac Legacy LRZ Specifications download pdf (Page 13)

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Installation and Operation Manual

Legacy™ Model LRZM Pool/Spa Heater

such as "The Gas Safety (Installation and Use)

Regulations" (Statutory Instrument 1998 No.

2451).

2. Check the gas supply to be sure that it is the same

as the gas indicated on the heater's rating plate.

3. If there is any doubt regarding the capacity of

any existing service pipes or the size required

for new service pipes then the advice of the

gas supplier should be requested. Installation

pipework should be tted and tested for gas

soundness. Zodiac recommends the gas inlet pipe

sizes listed in Table 5.

4. Use the gures in Table 5 to size the gas inlet

piping from the gas meter to the heater. Check all

local codes for compliance before installing the

heater.



Distance from Gas Meter

Heater

Size

0-15 m 15-30 m 30-60 m

mm mm mm

125 20 25 25

175 25 25 32

250 25 32 32

325 32 32 40

400 32 40 40

5. Before operating the heater, test for gas sound-

ness. Do not use a naked ame.

6. If the gas supply pressure is less than required,

check for undersized pipe between the meter and

the heater, a restrictive tting, or an undersized

gas meter. Gas supply pressures to the heater are

listed in Table 2.

The draft hood outlet is to be connected to an

unobstructed vent pipe of the same diameter, terminat-

ing outside the building. The vent must terminate at

least 0.6 m above the highest point of the roof or other

object that is within 3.05 m of the vent termination.

The vent pipe must have a listed vent cap which allows

a full equivalent opening for ue products (see Figure

4). The top of the vent cap must be at least ve (5) feet

in vertical height above the draft hood outlet.

Double wall or equivalent vent pipe is recom-

mended.

: Do not use sheet metal screws at

the snap lock joints of gas vents.

When venting multiple appliances through one

common duct, 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

ring in the event of a blocked vent. Refer to national

and local installation codes for more information on

multiple venting.

 





If the Legacy heater is being installed to replace

an existing pool heater, it is recommended that a new

appropriate venting system be installed with the new

heater. However, if an existing venting system must be

used, be sure to carefully inspect the venting system to

ensure that it is in good condition and continues to be

appropriate for the Legacy heater. Replace any parts

that are not in good and serviceable condition with

new parts before completing the pool heater installa-

tion.



 

Review the following general instructions before

continuing the installation.



The Legacy Model LRZ pool and spa heaters are

designed for use with either natural gas or LPG.

Check the rating plate on the inner panel to be sure

that the heater is designed to use the type of gas

being supplied. 







Permanent damage to the gas valve will occur if the

following procedures are not followed.

1. Gas piping installation must be in accordance

with all applicable local rules and regulations

 

Gas Cock

Burner Pressure

Point

Inlet Gas Pressure

Test Port

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 39 40

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Zodiac Legacy LRZ Specifications Page 13

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