Zodiac Legacy LRZ Specifications download pdf (Page 12)

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Legacy™ Model LRZM Pool/Spa Heater

Installation and Operation Manual

vermiculite or perlite granules between the liner and

the inner skin of the chimney body.

Liners should be sealed at both top and bottom.

Drainage points should be provided at the bottom of

all vertical ue sections. Drain pipes should be:

1. No less than 25 mm inside diameter.

2. Made from acid condensate resistant material

(e.g., stainless steel).

3. Positioned so that pipe runs and discharge points

are not subject to the effects of frost and ue

gases cannot leak into the boiler room.

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For outdoor installations, exhaust venting consid-

erations will determine the placement of the heater

(See Section 2.5.4). If the heater cannot be placed so

as to meet the requirements stated in Section 2.5.4,

a Type B11 vent pipe and cap may be added to the

heater to move the exhaust vent opening to a position

that complies with the requirements. When the heater

is installed in areas of high wind or when unavoidably

installed near a vertical obstruction where downdraft-

ing may occur, it may be desirable to add a vent cap

directly to the top of the heater. In all cases, vent pipes

and caps must be of the same diameter as the exhaust

outlet of the heater. Approved vent caps may be

obtained through your Zodiac distributor.

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Vent pipe diameter must be as required by appli-

cable local gas appliance installation codes such as

BS 5440. Undersized pipe can result in inadequate

venting and oversize pipe can result in vent conden-

sation. In either case the result can be release of

combustion products to the indoors. This can cause

serious injury or death by carbon monoxide poison-

ing or asphyxiation.

All indoor installations and outdoor shelter

installations require a factory approved draft hood and

Type B11 venting. The draft hood must be installed

without modication. All vent installations must be

made in accordance with all local, state or provincial

codes and with:

Avoid long horizontal runs of the vent pipe, and

90° elbows, reductions and restrictions. Horizontal

runs should have at least a 20 mm rise per meter in the

direction of ow.

Avoid terminating heater vents near air condi-

tioning or air supply fans. The fans can pick up

exhaust ue products from the heater and return them

inside the building, creating a possible health hazard.

Do not locate the vent terminal where ue

products could strike against building materials and

cause degradation.

Vent opening should be well away from trees

or other obstructions that would prevent free air ow

to and from vent terminal. Do not terminate the vent

under decks, stairways, or car ports.

Be sure to support all venting so that connec-

tions will not separate and so that the weight of the

vent pipe does not rest on the heater draft hood. All

connections should be made with rustproof sheet metal

screws. Do not weld or fasten the vent pipe to the

heater draft hood. The draft hood and heater top must

be easily removable for normal heater service and

inspection.

AT LEAST

600 mm OF

VERTICAL

FLUE ABOVE

THE DRAFT

HOOD

DRAFT HOOD

BENDS

SHOULD NOT

EXCEED 45°

LISTED FLUE TERMINAL

NON-COMBUSTIBLE

BASE

VENT TERMINATED

AT LEAST 600 mm

ABOVE ANY OBJECT

WITHIN 3.1 m

3.1 m

6.35 mm

minimum pitch

per meter

of horizontal

pipe

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

Use approved

roof jack.

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Zodiac Legacy LRZ Specifications Page 12

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