Jandy HI-E2 User Manual

Page 25
ENGLISH
Jandy
®
Pro Series, Hi-E2
®
and Hi-E2R Gas-Fired Heater
|
Installation & Operation Manual
Figure 30. Combustion system diagram.
Section 4. Maintenance and
Service
WARNING
Improper installation or maintenance can cause
nausea or asphyxiation from carbon monoxide in flue
gases which could result in severe injury, or death. For
indoor installations, as an additional measure of safety,
Zodiac Pool Systems, Inc. strongly recommends
installation of suitable Carbon Monoxide detectors
in the vicinity of this appliance and in any adjacent
occupied spaces.
WARNING
To avoid the risk of exposure to unsafe levels of
Carbon Monoxide, which can result in serious personal
injury or death, always ensure that the combustion
air filter is properly installed and secured in the tracks
provided in the air filter box.
WARNING
SERVICING SAFETY
Some of the servicing procedures for the HI-E2
heater are hazardous because they involve fuel gas,
electricity, moving parts and procedures which require
testing or temporary bypass of safety controls. For this
reason, the heater must be serviced only by a qualified
professional service technician.
IMPROPER SERVICE HAZARD
The HI-E2 heater incorporates unique design features.
Incorrect service of this heater can result in personal
injury or damage to property. To avoid such hazards,
the heater must be serviced only by a qualified
professional service technician.
4.1 General
A qualied professional technician must service the Hi-
E
2 pool heater using Zodiac
®
service procedures. Before
calling for service, however, the owner should check for
obvious problems. The other components in the pool
system, including pump, lters and strainers, water valves,
gas supply, electrical power and time clocks, have an
effect on heater operation.
Conrm that the heater control is set to “pool” or “spa”
and that the corresponding temperature knob is set high
enough to make the heater operate. Make sure the pump is
operating, that the lter and strainers aren’t clogged, that
there are no mis-positioned water valves, that the gas or
electric power supplies aren’t shut off and that time clocks
are properly adjusted. Also be sure that the combustion air
lter is clean and that there is no blockage of the vent or
combustion air inlet. See later section on combustion air
lter service.
4.2 Induced-Draft Combustion System
The Hi-E2 pool heater has an advanced combustion
system which makes it highly efcient and reliable. This
system is illustrated in Figure 30.
A special corrosion resistant high-speed blower pulls
ow through the system and exhausts it to the outdoors.
Air is pulled into the system through a combustion air
supply duct, when provided, and through an air lter into
a venturi. The venturi functions much like an automobile
carburetor venturi - i.e. when air is forced through it, a
“negative” pressure is created at the venturi throat. This
negative pressure pulls gas through a metering orice,
resulting in an optimal mixture of air and fuel gas. The air
and gas are thoroughly mixed in the venturi tailpipe, pulled
through a special burner and ignited in the combustion
chamber. Hot combustion products are then pulled
through a highly efcient downward-ow heat exchanger.
Combustion products are cooled below their dew point and
condensate water is formed and drained away. Flow then
enters the blower, where it is forced out of the heater at the
vent terminal or through a vent pipe to the outdoors.
4.3 Heater Components and Their
Operation
1. Gas valve / Regulator - The gas valve controls
gas ow into the venturi. It provides ow only
when the temperature control require heat and
only if all safety controls enable operation. It is
also a negative pressure regulator. It regulates the
gas pressure to 0.2” WC less than the air pressure
at the venturi inlet. This is necessary for proper
operation of the venturi system and cannot be
done with common (positive pressure) gas valves.
2. Combustion blower - The combustion blower is
a specially designed to handle moist combustion
products, having special plastic housing and
impeller. It is powered by a brushless DC motor.

Jandy HI-E2 Specifications

General

Brand	Jandy
Model	HI-E2
Category	Swimming Pool Heater
Language	English