Principal Parts - Lochinvar ECOKNIGHT EKW86CE Installation, Commissioning, Maintenance And User Instructions

3.0

PRINCIPAL PARTS

ITEM DESCRIPTION
1 Stainless steel heat exchanger
2 Heat exchanger access cover
3 Fan
4 Gas valve
5 Venturi
6 Flue gas sensor
Water heater outlet temperature
7
sensor
Water heater inlet temperature
8
sensor
9 Electronic display
10 Flue pipe adapter
11 Burner (not shown)
12 Water outlet
13 Water inlet
14 Gas connection pipe
15 SMART Control Module
16 Manual air vent
17 Air intake adapter
18 Mains voltage junction box
19 Water heater drain port
20 Low voltage connection board
Low voltage wiring connections
21
(knockouts)
22 Condensate drain connection
23 Access cover - front
24 Ignition electrode
25 Flame inspection window
26 Gas shutoff valve
27 High limit sensor
28 Flame sense electrode
Mains voltage wiring connections
29
(knockouts)
30 Top panel
31 Power switch
32 Levelling legs
3.1.1 PRINCIPLE PARTS LIST TO BE USED IN CONJUNCTION WITH 3.1.2
FUNCTION
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.
Allows access to the combustion side of the heat exchanger coils.
The fan pulls in air and gas through the venturi (item 5). Air and gas mix inside the fan and are
pushed into the burner, where they burn inside the combustion chamber.
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.
The venturi controls air and gas flow into the burner.
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.
This sensor monitors water heater outlet water temperature.
This sensor monitors return water temperature.
The electronic display consists of 7 buttons and a dual line 32-character liquid crystal display.
Allows for the connection of the flue system to the water heater.
Made with metal fibre and stainless steel construction, the burner uses pre-mixed air and gas and
provides a wide range of firing rates.
BSP water connection that supplies hot water to the system, either 1-1/4" or 2", depending on the
model.
BSP water connection that returns water from the system to the heat exchanger, either 1-1/4" or
2", depending on the model.
Threaded pipe connection, 1/2 ", 3/4", 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.
The SMART Control responds to internal and external signals and controls the fan, gas valve, and
pumps to meet the demand.
Designed to remove trapped air from the heat exchanger coils.
Allows for the connection of the air intake pipe to the water heater.
The junction box contains the connection points for the mains voltage power and all pumps.
Location from which the heat exchanger can be drained.
The connection board is used to connect external low voltage devices.
Conduit connection points for the low voltage connection board.
Connects the condensate drain line to a 1/2" PVC union.
Provides access to the gas train and the heat exchanger.
Provides direct spark for igniting the burner.
The quartz glass window provides a view of the burner surface and flame.
Manual valve used to isolate the gas valve from the gas supply.
Device that monitors the outlet water temperature. If the temperature exceeds its setting, it will
break the control circuit, shutting the water heater down.
Used by the control module to detect the presence of burner flame.
Conduit connection points for the mains voltage junction box
Removable panel to gain access to the internal components.
Turns 230 VAC ON/OFF to the water heater.
Used to allow the heat exchanger to be levelled. This is needed for the proper draining of the
condensate from the combustion chamber
7