State Industries STC-077 Service Checklist, III. GAS Pressure Fill in Blank ALL Units on

Page 41

S U F S E R V I C E H A N D B O O K

S E R V I C E C H E C K L I S T

SERVICE CHECKLIST

This is not intended to be and all-inclusive list of the problem that the Service Agent may encounter. Any item checked “no” on this list should be thoroughly investigated and corrective action taken, if required.

SERVICE AGENT:

 

INSTALLATION DATE:

 

 

MODEL NUMBER:

 

 

 

 

SERVICE DATE:

 

 

 

 

SERIAL NUMBER:

 

 

 

 

LOCATION ADDRESS:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PHONE

(

)

 

 

 

GAS

TYPE — CHECK ONE

 

-

 

 

 

 

 

 

 

 

 

NATURAL

 

 

 

 

 

 

 

 

PROPANE

 

 

YES

NO

 

 

 

 

 

PROPER GAS VALUE VERIFIED

 

 

 

 

 

I.CHECK CLEARANCE (CIRCLE ANSWER)

A.

Are exterior clearances adequate?

 

yes

no

B.

Are interior clearances adequate?

 

yes

no

 

 

Comments:

 

 

 

 

 

 

 

 

II.CHECK MAKEUP AIR REQUIREMENTS

A.

Is the quality of make-up air adequate?

 

yes

no

B.

Comments:

 

 

yes

no

 

 

 

Is the quantity of make-up air adequate?

 

 

Comments:

 

 

 

 

 

 

 

 

III.GAS PRESSURE (FILL IN BLANK) — ALL UNITS ON.

A.Supply gas pressure __ inches of W.C. (flowing)

B.Manifold gas pressure (main burner) __ inches of W.C. (flowing) Comments:

IV.

VENTING (CHECK)

 

 

 

 

yes

no

 

A.

Acceptable equivalent footage

 

B.

Proper material

 

 

 

yes

no

 

 

 

 

 

C.

Proper exterior installation

 

 

 

yes

no

 

 

 

 

 

D.

Condensate will drain

 

 

 

yes

no

 

 

 

 

 

 

Comments:

 

 

 

 

 

 

 

 

 

 

 

 

V.

WATER PIPING

 

 

 

yes

no

 

 

 

 

Is the system properly sized?

 

Is the system properly installed?

 

 

 

yes

no

 

 

 

 

 

Are there any water leaks?

 

 

 

yes

no

 

 

 

 

 

Does the installation have a recirculating system?

 

 

 

yes

no

 

 

 

 

 

If so, is it operational?

 

 

 

yes

no

 

 

 

 

VI.

SAFETY

 

 

 

 

 

 

 

 

 

 

 

A.

Air

yes

no

 

 

If exhaust is blocked will unit lockout?

 

 

If air intake is blocked will unit lockout?

 

 

 

yes

no

 

 

 

 

 

 

B.

Water Temperature

 

 

 

yes

no

 

 

 

 

 

 

- Is the thermostat adjusted to the lowest acceptable temperature?

 

 

- Does the installation have a mixing valve?

 

yes

no

 

 

 

 

 

- If so, is it operational?

 

 

yes

no

 

 

 

 

 

 

- What is the outlet temperature of the mixing valve?

 

 

yes

no

 

 

 

 

NOTE: To minimize the risk of scalding, the manufacturer recommends

 

 

 

 

storing water at 120° F.

yes

no

 

Is a properly rated temperature and pressure relief valve installed?

 

Is there a properly installed expansion tank?

 

yes

no

 

 

 

Should there be?

 

yes

no

 

 

 

C.

Electrical

 

yes

no

 

 

Is the 120 VAC electrical powers supply properly wired? (including polarity)

 

 

 

 

 

 

Are all the SUF control covers in place?

 

yes

no

 

 

 

 

 

Is the 120 VAC electrical power supply properly fused?

 

yes

no

 

 

 

 

D.

Flammables

 

yes

no

 

 

 

 

Are flammable materials located in the area of the water heater? or air intake?

 

 

Are flammable vapors located in the area of the water heater? or air intake?

 

yes

no

 

 

 

E.Gas

 

If the gas supply is reduced or turned off will the unit turn off?

 

yes

no

 

Comments:

 

 

 

 

 

[This service checklist

 

 

 

 

 

may be photo copied to assist with SUF service calls.]

 

 

 

Technical Training Department

40

State Water Heaters

STC-077

 

Ashland City, Tennessee © 2004

Image 41
Contents Commercial Table of Contents SUF Service HandbookTools Required IntroductionGAS Supply Specifications InstallationClearances GAS RequirementsEquivalent Feet of Pipe Intake or Exhaust VentingDirect Venting Vent Length Table Number Minimum Maximum Elbows Pipe FeetVenting Materials Venting ConfigurationsConcentric Vent Termination Horizontal Installation Vertical InstallationSUF Model Venting ClearancesExterior Sidewall Clearances MAKE-UP AIR Direct Vent InstallationAIR Requirements Vertical Ducts Direct CommunicationBackdraft Horizontal DuctsInsufficient MAKE-UP AIR Flammable Items Contaminated AIRMultiple Unit Water Piping Condensation Sequence of Operation OperationDuring Call for Heat Normal Indications / Readings / SettingsControls Display Circuit Board Ignition Circuit Board Circut BoardsPRE-SERVICE Tips TroubleshootingVAC to Control VAC to Control BoardVAC to Transformer TransformerVAC from Transformer VAC to ECO ECO CheckCheck for 24 VAC Between PIN 1 on CN3 Plug and Ground VAC from ECOTemperature Probe Resistance Temperature ProbeUpper Lower Temperature Probe PlugPressure Switch Continuity Test Pressure Switch ContinuityVAC to Blower BlowerAmbient Room AIR Pressure Pressure Switch PerformanceTake AIR and GAS Pressure Readings Only Pressure Switch Continuity Test OperationalVAC to Ignitor VAC to IgnitorIgnitor Resistance Check Ignitor ResistanceVAC to GAS Valve GAS Valve TestSUF 240 only Manifold GAS Pressure Test GAS Pressure CheckSupply GAS Pressure Test Orifice Table Component InformationPressure Swtches Pressure Switches Part Number / Activation PRESSURE† Pressure SwitchesWiring Diagrams Service Aids T E S SUF MufflerHow often should the anodes be inspected? Questions and AnswersWhen should SUF’s be delimed? Code Indication Error CodesCode #S AboveIII. GAS Pressure Fill in Blank ALL Units on Service ChecklistState Water Heaters SUF Models 100 150, 100 199 and 100Description SUF Ultra Force SUF Models Replacement PartsUltra Force SUF Controls Parts List T E S Expert’s Choice

STC-077 specifications

The State Industries STC-077 is a notable addition to the realm of high-efficiency water heaters, exemplifying advanced engineering and innovative design. The STC-077 is particularly recognized for its exceptional performance and energy-saving capabilities, making it an ideal solution for both residential and commercial applications.

One of the standout features of the STC-077 is its impressive energy efficiency rating. Utilizing state-of-the-art technology, this water heater operates with a high energy factor (EF) that significantly reduces operating costs compared to traditional water heating systems. This is especially beneficial in today's climate of rising energy costs and increased environmental awareness.

The STC-077 employs a robust stainless-steel tank construction that not only provides durability but also mitigates the risk of corrosion, ensuring longevity and reliability. This innovative design approach helps extend the product's lifespan while maintaining consistent performance throughout its use. Coupled with superior insulation, users can expect minimal heat loss and enhanced energy efficiency, making it a sustainable choice for consumers.

The unit is equipped with advanced controls that provide precise temperature regulation. This feature improves user experience and safety, allowing for customization to meet individual needs. Additionally, the STC-077’s intuitive digital display makes monitoring and adjusting settings straightforward, providing convenience and ease of use.

In terms of capacity, the STC-077 offers versatility with options suitable for various household sizes and demands. Whether for a small apartment or a busy commercial establishment, its modular design allows for seamless integration into existing systems while providing adequate hot water supply.

Furthermore, the STC-077 incorporates innovative technologies aimed at reducing maintenance needs. With easy access for servicing and built-in diagnostics, users can monitor performance proactively, ensuring the unit operates at optimal efficiency.

Overall, the State Industries STC-077 shines as a forward-thinking water heater. Its combination of high energy efficiency, durable construction, advanced technology, and user-friendly features make it a comprehensive solution for those seeking reliable hot water with minimal environmental impact. Whether for homeowners looking to lower energy bills or businesses seeking dependable performance, the STC-077 stands out as a premier choice in water heating solutions.