Section 6. Electrical; Main Power; Bonding; Auxiliary Time Clock Wiring - Jandy Legacy LRZM Installation And Operation Manual

Legacy

Section 6. Electrical

CAUTION
Label all wires prior to disconnection when servic-
ing controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing.
ATTENTION
Au moment de l'entretien des commandes,
étiquetez tous les fi ls avant de les débrancher. Des
erreurs de câblage peuvent entraîner un fonc-
tionnement inadéquat et dangereux.
6.1

Main Power

The Legacy heater does not require an external
source of electrical power to operate. The power for
the gas valve and safety circuit are generated by a
thermopile. The thermopile generates a millivolt signal
when heated by the pilot fl ame. Figure 16 shows the
internal electrical wiring diagram and schematic of the
heater.
6.2

Bonding

CAUTION
To prevent premature failure of the appliance result-
ing from stray voltages and voltage differentials, the
heater must be bonded to other equipment which is
part of the pool plumbing system with a solid copper
wire not smaller in diameter than 8 AWG, 6 AWG in
Canada.
ATTENTION
Pour éviter le bris prématuré de l'appareil dû à
des tensions vagabondes et à des différences
de tension, le chauffe-piscine doit être scellé à
l'équipement faisant partie de la plomberie de la
piscine à l'aide d'un fi l de cuivre massif dont le
diamètre n'est pas inférieur à un calibre 8, et un
calibre 6 pour le Canada.
Zodiac Pool Systems, Inc. requires that the appli-
ance be connected to a "bonding loop" that includes all
electrical equipment in the system and on the equip-
ment pad. Bonding lugs must be connected with a
solid copper wire not smaller than 8 AWG (6 AWG in
Canada). Failure to do so will void warranty.
Additionally, in the United States the National
Electrical Code and in Canada the Canadian Electri-
cal Code, require that all metallic components of
a pool structure, including reinforcing steel, metal
fi ttings and above ground components be bonded
together (forming a "bonding grid") with a solid
copper conductor not smaller than a 8 AWG (6 AWG
in Canada).
Model LRZM Pool/Spa Heater Installation and Operation Manual
™
BLACK
BLACK
Figure 15. Fireman's Switch or Control Connection
The NEC and the CEC also require that the
equipment and/or appliances associated with the pool
water circulating system, including, but not limited to,
pump motors and heaters be bonded together as part
of the equipotential bonding grid. Zodiac provides a
special labeled bonding lug on the right side of the
heater to accommodate this requirement.
6.3

Auxiliary Time Clock Wiring

If you install a time clock to control the fi lter
pump operation, it is recommended that the time clock
have its own low voltage (Fireman's) switch to turn
off the heater before turning off the pump. The switch
should shut off the heater about 15 minutes before
the fi lter pump shuts off. This will allow for a more
effi cient operation by removing any residual heat
contained in the heat exchanger back to the pool.
To install a time clock auxiliary switch into the
heater wires (see Figure 15):
1. Remove heater door.
2. Remove the factory installed wire between termi-
nals 1 and 2 on the terminal strip (see Figure 15).
3. Connect the wires from the time clock auxiliary
switch to the two terminals. Use American Wire
Gauge (AWG) No. 14 gauge stranded copper
wire with a temperature rating of 221°F (105°C)
or greater.
The length of the wire between the heater and
the time clock should not exceed 10-15 feet (4.57 m).
The contact points of the time clock switch should be
silver, or a low resistance alloy.
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