DIAGNOSTIC DISPLAY

By simultaneously pressing the “Mode” and “down arrow” buttons for 3 seconds the unit will allow access to the diagnostic mode.

In diagnostic mode, using the up/down arrow allows for cycling between diagnostic codes. The numeric display will show the diagnostic code for 1 second, followed by the actual measurement displayed for 3 seconds. For example, H01

-105 represents the diagnostic code of “H01” and the value of “105” is the inlet water temperature measurement. The display will continue to show the diagnostic code and the measurement value unless the up or down arrows are pressed to switch to the next item (see Table 4). If no buttons are pressed for 30 seconds the unit will revert back to operation mode where the set-point temperature is displayed.

 

 

Code and

 

Displayed

 

 

Diagnostic

 

Measurement

Units

 

 

Description

characters

Meaning

Remarks

Code

Display

(Example of)

 

(Example of)

 

 

 

 

Format

 

 

 

 

 

 

 

 

 

H01

Inlet Water

H01 – xxx

ºC or ºF

041 or 105

41ºC or 105ºF

ºC LED or ºF

 

Temperature

 

 

 

 

LED turned ON

H02

Heat engine outlet

H02 – xxx

ºC or ºF

041 or 105

41ºC or 105ºF

ºC LED or ºF

 

water temperature

 

 

 

 

LED turned ON

H03

Storage tank

H03 – xxx

ºC or ºF

041 or 105

41ºC or 105ºF

ºC LED or ºF

 

temperature

 

 

 

 

LED turned ON

H04

Heat engine water

H04 – xxx

litres/minute

056

5.6 litres/minute

1 litre =

 

flow rate

 

 

 

(1.48 Gallons/

0.264 Gallons

 

 

 

 

 

minute)

1 gallon =

 

 

 

 

 

 

3.78 litres

H05

Fan Speed

H05 - __x – xxx

rpm

006_511

6511 rpm

rpm=rotations

 

 

 

 

 

 

per minute

H06

Fan Current

H06 - __x – xxx

mA

001_456

1456 mA

mA=milliampers

 

 

 

 

 

(1.456A)

 

H07

Proportional Valve

H07 – xxx

mA

178

178 mA

mA=milliampers

 

Current

 

 

 

 

 

H08

Total Heating

H08 – xxx – xxx

hours

001_234

1234 hours

 

 

Time

 

 

 

(51.41 days)

 

H09

Total Cycles

H09 – xxx – xxx

heating cycles

000_459

459 heating

 

 

 

 

 

 

cycles

 

H10

Heat Engine

H10 – xxx

KBtu/hour

100

100 KBtu/hour

 

 

Rated Output

 

 

 

 

 

H11

Current Error

H11 – xxx

N/A

E00

Proper operation

 

 

Code (See Fault

 

 

 

- No error

 

 

Code Table)

 

 

 

 

 

H12 – H20

Error Code

Hxx – xxx

N/A

E28

Ignition failure

The most

 

History, From the

 

 

 

 

recent error

 

Most Recent to

 

 

 

 

corresponds

 

the Least Recent

 

 

 

 

to H12 and the

 

(See Fault Code

 

 

 

 

least recent to

 

Table)

 

 

 

 

H20

H21

Software

H21 – xxx – xxx

N/A

002_025

Software release

For the main

 

Release Number

 

 

 

number 2.25

controller board

 

(CWHCB)

 

 

 

 

 

H22

Software Release

H22 – xxx – xxx

N/A

002_009

Software release

For the display

 

Number (UIM)

 

 

 

number 2.09

board

H23

Configuration File

H23 – xxx – xxx

N/A

000_006

Configuration file

 

 

Number

 

 

 

number 6

 

TABLE 4

www.statewaterheaters.com

47

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Image 47
State Industries GPH-90N, 0710 316888-002 warranty Diagnostic Display, Remarks, Code Display Example Format
Page 46 Page 48

0710 316888-002, GPH-90N specifications

The State Industries GPH-90N,0710 316888-002 is a high-quality water heater designed to meet the demands of both residential and commercial applications. Renowned for its durability and efficiency, this model serves as an essential component for facilities requiring reliable hot water supply.

One of the standout features of the GPH-90N is its impressive heating capacity, which allows it to deliver hot water quickly and effectively. This model boasts a heating input of 90,000 BTU per hour, making it suitable for large households or commercial establishments. The unit is designed to maintain consistent water temperatures, ensuring that users have access to hot water whenever needed.

The GPH-90N is also equipped with advanced technologies that enhance its operational efficiency. It features a modulating gas burner that adjusts its output to match the flow rate of hot water demanded, thereby optimizing energy use and minimizing operating costs. This technology not only improves performance but also extends the lifespan of the water heater.

Durability is a key characteristic of the State Industries GPH-90N. The unit is crafted from high-quality materials, including a robust stainless steel tank that resists corrosion and ensures long-lasting performance. This corrosion-resistant design is particularly beneficial in areas with hard water, where mineral deposits can be a significant concern. Additionally, the tank is insulated with high-density foam, which helps to maintain heat and reduce standby heat loss.

A crucial aspect of the GPH-90N is its user-friendly features. The control panel is straightforward, allowing users to adjust settings with ease. The water heater is also designed for simple maintenance, ensuring that annual servicing can be carried out with minimal disruption.

Safety is paramount in the design of the GPH-90N. It includes multiple safety features, such as a pressure relief valve and a safety shut-off mechanism, which provide peace of mind for users. This ensures that the unit operates safely under varying conditions.

In conclusion, the State Industries GPH-90N,0710 316888-002 is a powerful and efficient water heater that combines advanced technology with durable construction. Its high heating capacity and user-friendly design make it a reliable choice for both residential and commercial applications, ensuring that hot water is always available when needed.
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