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SYSTEM SPECIFICATIONS
Model No
AHG-T42-NG
AHG-T42-LP
Type of Appliance
Temp. controlled continuous Flow Gas Hot Water Unit
Operation
With/without remote controls, mounted in Kitchen,
bathroom, etc.
Flue System
Room Sealed-Forced Draught Flue
Available default Temperatures
factory setting 107
℉
Rated gas pressure
Nature gas
7 inch W.C.(1 740Pa)
Propane(LPG)
11 inch W.C.(2 740Pa)
Temperature Range
Within 35
℃
～
65
℃
（
95
℉
～
149
℉
）
Dimensions
(mm)
Width
353
Height
568
Depth
157
Weight (Kg)
16
Connections
Gas
1/2 in.NPT
Cold Water Supply
1/2 in. NPT
Hot Water Supply
1/2 in. NPT
Ignition System
Direct Electronic Ignition
Max./Min. Gas
Consumption
Natural Gas
11,000 btu/h-20,000 btu/h
Propane Gas
10,700 btu/h-20,000 btu/h
Hot Water Delivery Capacity Max.
4.2 GPM (45
℉
rise)
5.4 GPM (35
℉
rise)
Noise level
70 dB(A)
Thermal efficiency
0.82
NOXaf
40 ppm Max
Minimum Operating Water Flow
0.66 GPM (2.5 L/min)
Minimum Operating Pressure
1.45 PSI
（
0.1 bar
）
Power Supply
120 Volts ,60 Hz
Water temperature control
Input and output water temperature signals
Water flow control
Electronic Water flow sensor
Safety Device
Flame Failure
Flame rod
Boil dry
Water flow sensor /221
℉
thermistor
Over temperature
185
℉
(Integrated circuit system)
Fusible link
320
℉
Thermal Fuse
Pressure relief valve
Opens 116 PSI
Combustion fan rpm check
Integrated circuit system
Over current
Glass fuse (5 Amp/3Amp)
Remote Control
Cable Optional
Kitchen, Bathroom, Second
Bathroom (universal / Up to 3
Controllers )
Kitchen/Bathroom/Second Bathroom
(universal / Up to 3 Controllers)
Electrical Consumption( Normal)
55 W
Summary of Contents for AHG-T42-LP
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