Lochinvar EcoShield Series, Инструкции по установке, пусконаладке и обслуживанию

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2.0 PRINCIPLE PARTS
ITEM DESCRIPTION FUNCTION
1 Access cover - front Provides access to the gas train and the heat exchanger.
2 Air intake adapter Allows for the connection of the air intake pipe to the water heater.
3 Air pressure switch The air pressure switch detects blocked inlet conditions.
4 Air shroud The air shroud controls air and gas flow into the burner.
5 Fan
The fan pulls in air and gas through the venturi. Air and gas mix inside the fan and are pushed
into the burner, where they burn inside the combustion chamber.
6 Burner (not shown)
Made with metal fibre and stainless steel construction, the burner uses pre-mixed air and gas and
provides a wide range of firing rates.
7 Condensate drain connection Connects the condensate drain line to a ½” PVC union.
8 Control module
The control responds to internal and external signals and controls the fan, gas valve, and pumps
to meet the demand.
9 Electronic display The electronic display consists of 7 buttons and a dual line 32-character liquid crystal display.
10 Flame inspection window The quartz glass window provides a view of the burner surface and flame.
11 Flame sense electrode Used by the control module to detect the presence of burner flame.
12 Flue gas sensor
This sensor monitors the flue gas exit temperature. The control module will modulate and shut
down the water heater if the flue gas temperature gets too hot. This protects the flue pipe from
overheating.
13 Gas connection pipe
Threaded pipe connection, ½”, ¾”, or 1", depending on the model. This pipe should be connected
to the incoming gas supply for the purpose of delivering gas to the water heater.
14 Gas valve
The gas valve senses the negative pressure created by the fan, allowing gas to flow only if the gas
valve is powered and combustion air is flowing.
15 Heat exchanger access cover Allows access to the combustion side of the heat exchanger coils.
16
Heat exchanger inlet temperature
sensor
This sensor monitors the inlet water temperature to the heat exchanger.
17
Heat exchanger outlet temperature
sensor
This sensor monitors the heat exchanger outlet water temperature.
18 High limit sensor
Device that monitors the outlet water temperature. If the temperature exceeds its setting, it will
break the control circuit, shutting the water heater down.
19 Ignition electrode Provides direct spark for igniting the burner.
20 Mains voltage junction box The junction box contains the connection points for the mains voltage power and all pumps.
21 Low voltage connection board The connection board is used to connect external low voltage devices.
22
Low voltage wiring connections
(knockouts)
Conduit connection points for the low voltage connection board.
23
Mains voltage wiring connections
(knockouts)
Conduit connection points for the mains voltage junction box.
24 Pump Circulates water between the storage vessel and heat exchanger.
25 Pump relay Switches power to the pump.
26 Stainless steel heat exchanger
Allows water to flow through specially designed coils for maximum heat transfer, while providing
protection against flue gas corrosion. The coils are encased in a jacket that contains the
combustion process.
27 Tank sensor Used by the control to monitor the temperature of the storage vessel.
28 Top panel Removable panel to gain access to the internal components.
29 Flue pipe adapter Allows for the connection of the flue system to the water heater.
30 Venturi The venturi controls air and gas flow into the burner.
31 Water heater drain valve Location from which the water heater can be drained.
32 Water inlet
BSP water connection that returns water from the system to the heat exchanger, either 1 ½” or 2",
depending on the model.
33 Water outlet
BSP water connection that supplies hot water to the system, either 1 ½” or 2", depending on the
model.
TABLE 2.1 THE ECOSHIELD WATER HEATER - HOW IT WORKS...