Lochinvar SNA500-125, SNR200-100 Venting and combustion air, Canada, Vent pipe and fittings

Page 15

TM

Installation & Service Manual

2General venting (continued)

Venting and combustion air

The Shield water heater must be vented and ￿ DANGER supplied with combustion and ventilation air as described in this section. Ensure the vent and air piping and the combustion air supply comply with these instructions regarding vent system, air system, and

NOTICE

All vent pipes must be glued, properly

supported, and the exhaust must be pitched

 

 

a minimum of a 1/4 inch per foot back to the

 

water heater (to allow drainage of

 

condensate).

combustion air quality. See also Section 1 of this manual.

Inspect finished vent and air piping thoroughly to ensure all are airtight and comply with the instructions provided and with all requirements of applicable codes.

Failure to provide a properly installed vent and air system will cause severe personal injury or death.

￿WARNING

This appliance requires a special venting system. The vent connection to the appliance must be made with the CPVC pipe section installed in the appliance. The field provided vent fittings must be cemented to the CPVC pipe section. Use only the vent materials, primer and cement specified in this manual to make the vent connections. Failure to follow this warning could result in fire, personal injury, or death.

Vent piping materials

Requirements for installation in Canada

￿WARNING

NOTICE

Use only the materials listed in Table 2A below for vent pipe, and fittings. Failure to comply could result in severe personal injury, death, or substantial property damage.

Installation must comply with local requirements and with the National Fuel Gas Code, ANSI Z223.1 for U.S. installations or CSA B149.1 for Canadian installations.

1.

Installations must be made with a vent pipe system

 

certified to ULC-S636.

 

IPEX is an approved vent manufacturer in Canada

 

supplying vent material listed to ULC-S636.

2.

The first three (3) feet of plastic vent pipe from the

 

appliance flue outlet must be readily accessible for visual

 

inspection.

3.

The components of the certified vent system must not be

 

interchanged with other vent systems or unlisted

 

pipe/fittings. For concentric vent installations, the inner

￿WARNING For closet and alcove installations, CPVC material MUST BE used in a closet/alcove

structure. Failure to follow this warning could result in fire, personal injury, or death.

Table 2A Vent Pipe and Fittings

vent tube must be replaced with field supplied certified

vent material to comply with this requirement.

4. The 3" Concentric Vent Kit available from Lochinvar (see

Section 3 – Sidewall Termination – Optional Concentric

Vent) and the 3" Concentric Vent Kit available from IPEX

are both approved for use on the Shield Water Heater. Both

kits are listed to the ULC-S636 standard for use in Canada.

All vent pipe materials and fittings must comply with the following:

Item

Material

Standards for installation in:

 

 

United States

Canada

 

 

 

PVC schedule 40

ANSI/ASTM D1785

CPVC and PVC venting must be

 

 

 

ULC-S636 Certified. IPEX is an

Vent pipe and fittings

PVC-DWV

ANSI/ASTM D2665

approved manufacturer in Canada

 

 

 

supplying vent material listed to

 

CPVC schedule 40

ANSI/ASTM F441

 

ULC-S636.

 

 

 

 

 

PVC

ANSI/ASTM D2564

IPEX System 636

Pipe cement/primer

 

 

 

 

Cements & Primers

CPVC

ANSI/ASTM F493

 

 

 

 

 

 

 

NOTICE: DO NOT USE CELLULAR (FOAM) CORE PIPE

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Contents What to do if YOU Smell GAS Installation & Service ManualContents Hazard definitions Please read before proceedingBlower Shield How it worksModels SNR150-100 -- SNA285-125 Model SNA500-125 Model SNA400-125CSA RatingsBefore locating the water heater, check Installation must comply withCloset and alcove installations Determine water heater location1Closet Installation Minimum Required Clearances Flooring and foundation Remove water heater from wood palletPrevent combustion air contamination Do not install the Shield water heater into 3Combustion Air Direct from Outside Minimum Recommended Combustion AIR Supply to Equipment Room Direct venting options General ventingVenting and combustion air CanadaVent pipe and fittings Air inlet pipe materials Air intake/vent connectionsVent Length Removing from existing ventVent and air piping Vent Size If using the alternate sidewall terminationSidewall direct venting Vent/air termination sidewall2Clearance to Gravity Air Inlets Prepare wall penetrations Prepare wall penetrations Alternate Field Supplied OptionTermination and fittings 5AMultiple Vent Terminations must also comply with -1A Multiple vent/air terminationsSidewall termination installation Sidewall termination optional concentric ventDescription and usage 9Concentric Vent Dimensional Drawing Multiventing sidewall terminations 12Concentric Vent Sidewall AttachmentVent/air termination vertical Vertical direct venting2Vertical Terminations with Multiple Water Heaters Prepare roof penetrationsVertical termination optional concentric vent Vertical termination installationMultiventing vertical terminations 6Concentric Vent Roof Installation1Vertical Direct Venting w/Room Air Conventional and sidewall ventingGeneral piping information System pipingSystem water piping methods ScaldingPiping components Water chemistryDelta T Single Unit 3Multiple Units Water Tank Supply Gas connections Connecting gas supply pipingPropane gas Natural gasNatural Gas Pipe Capacity Chart Check inlet gas supplyLength of Pipe in Straight Feet for 1/2 PSI Gas pressure Gas valve replacementField wiring 3Low Voltage Field Wiring Connections Inputs Condensate drain Condensate disposalStart-up Check for gas leaks Inspect/fill condensate systemFinal checks before starting the water heater Check flame and combustion Start the water heaterIf water heater does not start correctly Check system and water heater2Operating Instructions Models SNR150-100 -- SNA285-125 3Operating Instructions Models SNA400-125 -- SNA500-125 General Temperature controlProtection features Operating informationWater heater temperature regulation Adjustable control parametersSaving parameters HTR Ignition Sequence of operation1Control Panel Shield control moduleStatus Display Screens Status display screensStatus Display Screens cont’d Maintenance Maintenance and annual startup Service technicianOwner maintenance Maintenance Check water heater relief valve Flue vent system and air pipingCheck water system Check expansion tankCheck flame signal Check ignition ground wiring Check burner flameCheck all water heater wiring Check control settingsNiosh stated First Aid Cleaning heat exchangerHandling ceramic fiber materials Oiled bearing circulatorsCheck the following TroubleshootingBefore troubleshooting Check control module fusesAbove 50% No DisplayNo Burner Operation Unit Does Not ModulateTemperature F Resistance Ω Checking temperature sensorsTroubleshooting Flame SequenceNo Flame Ign Fail No FlameRunning GV/RelayFan Speed Low Manual ResetHigh Limit Fan LowSensor Open SwitchFan High Fan Speed HighProgr ParametersWrite EEProm Service BlkWatch Dog Error Low 24 VACGas Supply Pressure Combustion Analysis ProcedureGas Valve Adjustment Or ObstructionModel SNA500-125 Gas valve adjustment procedureModels SNR150-100 -- SNA285-125 Model SNA400-125120 VAC DiagramsLOW Voltage

SNA400-125, SNR150-100, SNA285-125, SNR200-100, SNA500-125 specifications

Lochinvar has established itself as a leader in the realm of high-efficiency heating solutions, and its line of condensing boilers, including the SNA500-125, SNR200-100, SNA400-125, SNA285-125, and SNR150-100, exemplifies the brand’s commitment to innovation, efficiency, and reliability.

The SNA500-125 model stands out with its impressive heating capacity, designed for larger commercial applications. Featuring advanced modulating burners, it can precisely adjust its output based on real-time demand, significantly enhancing energy efficiency. The stainless steel heat exchanger ensures robust durability and improved thermal performance, while the integrated controls offer advanced diagnostic capabilities and user-friendly operation.

Next in the lineup, the SNR200-100 serves as a versatile option for mid-sized applications. Its compact design allows for flexible installation, making it a valuable choice for facilities with limited space. The boiler incorporates a high-efficiency combustion system that maximizes fuel utilization, while its low NOx emissions technology aligns with environmental standards, reducing the carbon footprint of users.

The SNA400-125 delivers a robust solution for diverse heating needs, equipped with state-of-the-art modulation technology that not only optimizes efficiency but also offers quiet operation – a crucial feature for facilities where noise reduction is paramount. This model also includes built-in redundancy options, enhancing reliability during peak operational periods.

The SNA285-125 provides a balance of performance and efficiency for smaller commercial settings. Its innovative control system offers precise temperature management and easy integration with existing systems. Energy Star certified, this model is not only cost-effective but supports sustainability efforts in various industries.

Lastly, the SNR150-100 is ideally suited for light commercial applications, featuring a compact footprint and excellent heat transfer capabilities. The user-friendly interface and robust safety features make it an excellent choice for operators prioritizing both ease of use and reliability.

All these models incorporate Lochinvar's commitment to superior design and advanced technologies, setting a benchmark in the high-efficiency heating market. With a focus on long-term performance and compliance with modern environmental standards, Lochinvar continues to deliver top-tier solutions tailored to meet diverse customer needs. Whether for large-scale operations or smaller settings, these boilers represent a significant advancement in commercial heating technology.
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