Zodiac Legacy LRZ Specifications download pdf (Page 22)

 

Legacy™ Model LRZM Pool/Spa Heater

Installation and Operation Manual

The heater may not start on the rst try. Air in

the gas line or other start-up situations may cause it to

cycle.

When raising the temperature of a cold pool,

remove all time clock settings. This lets the lter

system and heater operate continuously until the water

reaches the temperature setting on the temperature

control. When that happens, the heater will automati-

cally shut off, but the lter pump will keep running.

When the heater starts, immediately feel the

outlet header of the heater to conrm that there is

adequate water ow. The header should not be hot.

Normally, water temperature will rise only a few

degrees as it passes through the heater, and a “hot”

header or pipe indicates low water ow.



When the heater is red for the rst time, the com-

bustion chamber refractory binder material is driven

out by the heat of the ame. White smoke and/or

sharp odors may be emitted from the vent during

this period. Do not inhale combustion product fumes

at any time, and especially when these fumes are

being emitted. This "burn-in" period will last only a

few minutes.

 

Before starting your heater, be sure that you are

familiar with the setting and operation of the heater

controls. Once the controls are set to your preferences,

follow the instructions outlined on the following page.

Read and follow all safety instructions rst.

A more detailed set of instructions of the opera-

tion of the controller follows in the next section.

 If your heater is congured to operate on LPG

and the LPG tank runs out of fuel, turn off

gas at the heater. After the tank is relled, the

heater must be relit following the instructions

found on the inside of the heater. A copy of

these instructions appears on the following

page.



DO NOT attempt repairs on the gas control or

heater. Tampering can cause severe bodily injury or

death and voids all warranties.



Do not attempt to operate the heater with the door

off. Doing so may cause severe bodily injury.

 

Full lighting and shutdown instructions can

also be found attached to the wall inside the control

compartment door. See Figure 18.

1. Remove the service door on the front of the

heater.

the temperature control setting, an operating cycle is

initiated by the automatic control. The temperature

control circuit is closed, activating the gas valve and

the gas valve is opened. Gas ows through the burners,

is mixed with air in the combustion chamber, and is

ignited by the pilot. Operation will continue until the

temperature of the water entering the heater reaches

the temperature control setting.

If ignition is unsuccessful, or if the ame fails

during normal operation, the temperature control

circuit opens and shuts off the gas valve.

 



Do not use this heater if any part has been under

water. Immediately call a qualied service techni-

cian to inspect the heater and replace any part of

the control system and any gas control which has

been under water.



Should overheating occur or the gas supply fail to

shut off, turn off the manual gas control valve to the

heater.



Do not attempt repairs on the gas controls or appli-

ance. Tampering is dangerous and voids all warran-

ties.



Keep all objects off the top of the heater. Blocking

air ow could damage the heater, and may void the

warranty.



Vent pipes, draft hoods, and heater tops get hot!

These surfaces can cause serious burns. Do not

touch these surfaces while the heater is in opera-

tion. Adding a vent cap reduces the temperature on

the top.



For your safety, when starting the heater, keep your

head and face well away from the lower rebox

opening to prevent any risk of personal injury.

Be sure that there is water in the pool and that the

surface level is above the skimmer or other inlet of the

pool’s lter system.

Conrm that pool water is owing normally

through the pool system and equipment. With any

new pool or spa installation, operate the lter pump

with the heater off long enough to completely clean

the water. This will remove any installation residue

from the water. Clean the lter at the end of this

operation before starting the heater. Start the heater

in accordance with the Operating Instructions section

of this manual, with particular attention to the light-

ing and shutdown instructions and temperature control

operation.

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Zodiac Legacy LRZ Specifications Page 22

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