Operational Principle - Paloma PH2-20R OFN Engineering Handbook

OPERATIONAL PRINCIPLE

(PH2-20ROF, PH2-25ROF & PH2-28ROF Outdoor Models)
Exhaust Gas
No. Name of Parts
1 Hot Water Tap
2 Water Flow Servo
3 Water Flow Sensor
4 Water Inlet Thermistor
5 Heat Exchanger Thermistor
6 Hot Water Outlet Thermistor
7 PC Board
8 Water Filter
9 Gas Inlet Solenoid Valve
10 Solenoid Valve 1
- 106 -
Hot Water Outlet
No.
11 Solenoid Valve 2
12 Solenoid Valve 3
13 Solenoid Valve 4
14 Proportional Gas Control Valve
15 Orifi ce
16 Igniter
17 Electrode
18 Flame Rod
19 Main Burner
20 Heat Exchanger
Name of Parts
Gas Inlet
Water Inlet
No. Name of Parts
21 Film Type OHL
22 Fan
23 Fan Motor
24 Drain Valve
25 Remote Control
26 Freeze Protection Heater
27 Bypass Solenoid Valve
28 Exhaust Outlet