Lochinvar SNR150-100 6Concentric Vent Roof Installation, Multiventing vertical terminations

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TM

Installation & Service Manual

4Vertical direct venting

Vertical termination – optional concentric vent

￿WARNING

Do not operate the appliance with the rain cap removed or recirculation of combustion products may occur. Water may also collect inside the larger combustion air pipe and flow to the burner enclosure. Failure to follow this warning could result in product damage or improper operation, personal injury, or death.

CAUTION

DO NOT use field-supplied couplings to

extend pipes. Airflow restriction will

 

 

occur.

7. Install the rain cap and the small diameter pipe assembly

into the roof penetration assembly. Ensure the small

diameter pipe is cemented and bottomed in the Y

concentric fitting for #CVK3003 installations and

fastened tightly into the rubber adapter for #CVK3007

installations.

5.Install the Y concentric fitting pipe assembly up through the structure’s hole and field supplied roof boot/flashing.

NOTICE

Do not allow insulation or other materials

to accumulate inside the pipe assembly

 

 

when installing through the hole.

6.Secure the assembly to the roof structure as shown below in FIG. 4-6 using field supplied metal strapping or equivalent support material.

Figure 4-6Concentric Vent Roof Installation

Note: CVK3003 shown for illustration purposes.

NOTICE

Ensure termination height is above the

roof surface or anticipated snow level

 

 

 

(12 inches in U.S.A. or 18 inches in

 

Canada) as shown in FIG. 4-4, page 27.

 

If assembly is too short to meet height

NOTICE

requirement, the two (2) pipes supplied

 

 

in the kit may be replaced by using the

 

same diameter, field supplied SDR-26

 

PVC (D2241) pipe for #CVK3003 and

 

standard schedule 40 PVC for

 

#CVK3007. Do not extend dimension

 

D* more than 60 inches (see FIG.’s 3-9

 

and 3-10, page 23).

8.

Cement the appliance combustion air and vent pipes to

 

the concentric vent termination assembly. See FIG. 4-6

 

for proper pipe attachment.

9.

Operate the appliance through one (1) heat cycle to

 

ensure combustion air and vent pipes are properly

 

connected to the concentric vent termination

 

connections.

Multiventing vertical terminations

When two (2) or more direct vent appliances are vented near each other, each appliance must be individually vented (see FIG. 4-7). NEVER common vent or breach vent this appliance. When two (2) or more direct vent appliances are vented near each other, two (2) vent terminations may be installed as shown in FIG. 4-7. The vent terminations must be at least 36 inches away from the first two (2) terminations. It is important that vent terminations be made as shown to avoid recirculation of flue gases. Dimension A in FIG. 4-7 represents the distance between pipes or rain shields, as touching or a 2 inch maximum separation.

Figure 4-7Concentric Vent and Combustion Air Vertical Termination (Dimension A as Touching or 2 inches Maximum Separation)

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Contents Installation & Service Manual What to do if YOU Smell GASContents Please read before proceeding Hazard definitionsShield How it works BlowerModels SNR150-100 -- SNA285-125 Model SNA400-125 Model SNA500-125Ratings CSAInstallation must comply with Closet and alcove installationsDetermine water heater location Before locating the water heater, check1Closet Installation Minimum Required Clearances Remove water heater from wood pallet Flooring and foundationPrevent combustion air contamination Do not install the Shield water heater into 3Combustion Air Direct from Outside Minimum Recommended Combustion AIR Supply to Equipment Room General venting Direct venting optionsCanada Venting and combustion airVent pipe and fittings Air intake/vent connections Air inlet pipe materialsRemoving from existing vent Vent LengthVent and air piping If using the alternate sidewall termination Sidewall direct ventingVent/air termination sidewall Vent Size2Clearance to Gravity Air Inlets Prepare wall penetrations Alternate Field Supplied Option Prepare wall penetrationsTermination and fittings Multiple vent/air terminations 5AMultiple Vent Terminations must also comply with -1ASidewall termination optional concentric vent Sidewall termination installationDescription and usage 9Concentric Vent Dimensional Drawing 12Concentric Vent Sidewall Attachment Multiventing sidewall terminationsVertical direct venting Vent/air termination verticalPrepare roof penetrations 2Vertical Terminations with Multiple Water HeatersVertical termination installation Vertical termination optional concentric vent6Concentric Vent Roof Installation Multiventing vertical terminationsConventional and sidewall venting 1Vertical Direct Venting w/Room AirSystem piping System water piping methodsScalding General piping informationWater chemistry Piping componentsDelta T Single Unit 3Multiple Units Water Tank Supply Connecting gas supply piping Gas connectionsNatural gas Propane gasCheck inlet gas supply Natural Gas Pipe Capacity ChartLength of Pipe in Straight Feet for 1/2 PSI Gas valve replacement Gas pressureField wiring 3Low Voltage Field Wiring Connections Inputs Condensate disposal Condensate drainCheck for gas leaks Inspect/fill condensate system Start-upFinal checks before starting the water heater Start the water heater If water heater does not start correctlyCheck system and water heater Check flame and combustion2Operating Instructions Models SNR150-100 -- SNA285-125 3Operating Instructions Models SNA400-125 -- SNA500-125 Temperature control Protection featuresOperating information GeneralAdjustable control parameters Water heater temperature regulationSaving parameters Sequence of operation HTR IgnitionShield control module 1Control PanelStatus display screens Status Display ScreensStatus Display Screens cont’d Service technician Maintenance Maintenance and annual startupOwner maintenance Maintenance Flue vent system and air piping Check water systemCheck expansion tank Check water heater relief valveCheck ignition ground wiring Check burner flame Check all water heater wiringCheck control settings Check flame signalCleaning heat exchanger Handling ceramic fiber materialsOiled bearing circulators Niosh stated First AidTroubleshooting Before troubleshootingCheck control module fuses Check the followingNo Display No Burner OperationUnit Does Not Modulate Above 50%Checking temperature sensors Temperature F Resistance ΩTroubleshooting Sequence FlameNo Flame Ign No Flame RunningGV/Relay FailManual Reset High LimitFan Low Fan Speed LowSwitch Fan HighFan Speed High Sensor OpenParameters ProgrService Blk Watch Dog ErrorLow 24 VAC Write EEPromCombustion Analysis Procedure Gas Valve AdjustmentOr Obstruction Gas Supply PressureGas valve adjustment procedure Models SNR150-100 -- SNA285-125Model SNA400-125 Model SNA500-125Diagrams 120 VACLOW 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.