lp-672 Rev. 000 Rel. 002 Date 10.3.18
14
Figure 7 - Components
Number
Component Description
Number
Component Description
Number
Component Description
1
Air Intake Pipe Adapter
14
Condensate Trap
27
Control Panel
2
Flue Air Pressure Sensor
15
Gas Pipe Adapter
28
Heat Exchanger
3
Air Inlet Orifice
16
Condensate Adapter
29
Flame Detection Sensor
4
Air Inlet Pipe
17
Hot Water Adapter
30
Water Level Detection Sensor
5
Gas Outlet Pipe
18
Hot Water Thermistor
31
Main Control Board
6
Burner High Limit Switch
19
Cold Water Inlet Adapter
32
Igniter Rod
7
Gas Valve
20
Cold Water Thermistor
33
Burner Case
8
Hot Water High Limit Switch
21
Recirculation Return Adapter
34
Igniter Transformer
9
Heat Exchanger Water Thermistor
22
Recirculation Pump
35
BLDC Fan
10
Gas Inlet Pipe
23
Flow Control Valve
36
Exhaust Thermistor
11
Hot Water Outlet Pipe
24
Water Mixing Valve
37
Exhaust Duct
12
Manual ON/OFF Power Switch
25
Terminal Strip
38
Exhaust Vent Adapter
13
Condensate Air Pressure Switch
26
Recirculation Return Water Sensor
Table 11 - Component List
How the Water Heater Operates
Condensing technology intelligently delivers water heating while
maximizing efficiency. Outlined below are the features of the system
and how they operate:
Stainless Steel Heat Exchanger -
The highly efficient 316L stainless
steel fire tube heat exchanger with internal aluminum is designed
to extract all available heat from the combustion process and pass
it into heat transfer fluid. The stainless steel construction provides
protection for longer service life. The heat exchanger offers greater
water content, providing lower system pressure and greater overall
system efficiency.
10 to 1 Modulating Combustion System -
The combustion
system is specially designed to provide very high turn down. This
combustion system will modulate the burner output to very low
levels to match the system demand and achieve better overall
control of the heating system for maximum efficiency and reliability.
Control –
The integrated control system monitors the system and
responds to internal and external signals to regulate fan speed and
control output. This allows the water heater to deliver only the amount
of hot water required and nothing more.
The control can regulate the output of multiple water heaters through
its cascade system function by establishing one water heater as the
master and the other connected water heaters as followers. The
master water heater requires a sensor to provide feedback on set point
temperature in order to adjust heating output from the connected
water heaters. Multiple water heater cascaded systems offer greater
system turndown and redundancy.
Electronic LCD Display –
The high resolution display allows the user
to monitor water heater functions. The display also provides the means
to program the system parameters to maximize the efficiency of the
system design.
Combustion System (Blower – Gas Valve – Mixer – Burner – Spark
Ignition) –
The highly efficient spark ignition combustion system uses
a variable speed blower to adjust combustion as the system requires
