Lochinvar Shield SNR150-100 Manuel d'utilisateur

TM Installation & Service ManualModels: SNR150-100, SNR200-100, SNA285-125, SNA400-125, AND SNA500-125This manual must only be used by a qualifie

10Do not install the water heater on carpeting even if foundation is used. Fire can result, causing severe personal injury, death, or substantial prop

When removing a water heater from existing common vent system:Do not install the Shield water heater into a common vent with any other appliance. Thi

121 Determine water heater locationCombustion and ventilation air requirements for appliances drawing air from the equipment roomProvisions for combu

131 Determine water heater location (continued)Figure 1-6_Combustion Air from Outside - Single Opening3. If air is taken from another interior space

1 Determine water heater location14The result is improper combustion and a non-warrantable, premature appliance failure.EXHAUST FANS: Any fan or equ

15Figure 2-1 PVC/CPVC Two-Pipe Sidewall Termination - See page 22 for more detailsFigure 2-3 PVC/CPVC Concentric Sidewall Termination - See page 26 fo

162 General ventingFigure 2-4 PVC/CPVC Two-Pipe Vertical Termination - See page 29 for more detailsFigure 2-6 PVC/CPVC Concentric Vertical Terminatio

17PVC/CPVC vent piping materialsUse only the materials listed in Table 2A for vent pipe, and fittings. Failure to comply could result in severe perso

182 General ventingTable 2A Vent Pipe and Fittings6. Priming and Cementing: a. Handle fittings and pipes carefully to prevent contamination of su

192 General venting (continued)Air inlet pipe materials:The air inlet pipe(s) must be sealed. Choose acceptable combustion air inlet pipe materials f

2ContentsPLEASE READ BEFORE PROCEEDING ... 3 Hazard Definitions ... 3THE SHI

202 General venting3" S.S. ADAPTERVENT3" S.S. INTERMEDIATE(FOR SAF-T VENT ONLY)Figure 3-11 Near Water Heater Stainless Steel Venting Stainl

212 General venting (continued)If the water heater combustion air inlet is located in a laundry room or pool facility, for example, these areas will

223 Sidewall direct ventingVent/air termination – sidewallFollow instructions below when determining vent location to avoid possibility of severe per

23Vent/air termination – sidewall 3 Sidewall direct venting (continued) VENT / AIRTERMINATION12"MIN.12"MIN.12"MIN.Figure 3-2A Clearanc

243 Sidewall direct venting VENT PIPINGGALVANIZEDTHIMBLEVENT CAPAIR PIPINGWALL PLATEVENT PLATEFigure 3-4A Sidewall Termination AssemblyPrepare wall p

253 Sidewall direct venting (continued) All vent pipes and air inlets must terminate at the same height to avoid possibility of severe personal injur

263 Sidewall direct venting Figure 3-7 Kit Contents_CVK3003 - SNR150-100 -- SNR200-100Sidewall termination installation1. Determine the best locati

27Sidewall termination – optional concentric vent Figure 3-9 Concentric Vent Dimensional Drawing - Models SNR150-100 -- SNR200-100 / CVK3003Instead of

283 Sidewall direct venting Sidewall termination – optional concentric vent Multiventing sidewall terminationsWhen two (2) or more direct vent appli

294 Vertical direct venting Vent/air termination – verticalFollow instructions below when determining vent location to avoid possibility of severe pe

Please read before proceedingInstaller – Read all instructions, in this manual before installing. Perform steps in the order given.Have this water

304 Vertical direct venting Vent/air termination – vertical Prepare roof penetrations1. Air pipe penetration:a. Cut a hole for the air pipe. Size

314 Vertical direct venting (continued) Vertical termination – optional concentric vent Description and usageLochinvar offers an optional concentric

324 Vertical direct venting Vertical termination – optional concentric vent Figure 4-6 Concentric Vent Roof Installation Ensure termination height

33The Shield water heater may be installed with a single pipe carrying the flue products to the outside while using combustion air from the equipment

346 System pipingSystem water piping methodsObserve a minimum of one inch clearance around all un-insulated hot water pipes when op

356 System piping (continued) See the * piping illustrations included in this section, FIG.’s 6-2 thru 6-4 for suggested guidelines in piping the S

366 System piping FLOW CHECKVALVE (TYPICAL)EXPANSIONTANKCOLD WATERSUPPLYHOT WATERSUPPLYBUILDINGRETURNSYSTEMCIRCULATORUNION(TYPICAL)BALL VALVE(TYPICA

376 System piping (continued) FLOW CHECKVALVE (TYPICAL)EXPANSIONTANKCOLD WATERSUPPLYHOT WATERSUPPLYBUILDINGRETURNSYSTEMCIRCULATORUNION(TYPICAL)BALL

386 System piping FLOW CHECKVALVE (TYPICAL)BALL VALVE(TYPICAL)EXPANSIONTANKTHERMOMETER(TYPICAL)COLDWATERSUPPLY140° HOT WATERSUPPLYHIGH TEMPERATUREBU

397 Gas connectionsConnecting gas supply piping1. Install ground joint union for servicing, when required. 2. On Models SNR150-100 -- SNA285-12

4The Shield - How it works...1. Access cover - front Provides access to the gas train and heat exchanger.2. Air intake adapter Allows for the conne

40Failure to apply pipe sealing compound as detailed in this manual can result in severe personal injury, death, or substantial property damage.Shield

41NominalIron PipeSize (Inches)Natural Gas Pipe Capacity ChartLength of Pipe in Straight Feet for 1/2 PSI1020304050607080901001251501752001/2175 120 9

427 Gas connections Gas pressureThe gas pressure must remain between 4 inches w.c. (natural), 8 inches w.c. (LP) minimum and 14 inches w.c. (natu

438 Field wiring ELECTRICAL SHOCK HAZARD – For your safety, turn off electrical power supply before making any electrical connections to avoid possi

448 Field wiring Figure 8-3 Low Voltage Field Wiring ConnectionsBUILDINGMANAGMENTSYSTEMALARM BELLLOW WATERCUTOFF Installation & Service Man

458 Field wiring (continued)Figure 8-4 Control Inputs/OutputsTANK SENSORLOW VOLTAGE CONNECTIONBOARDINLET TEMPERATURESENSOROUTLET TEMPERATURE /HIGH LI

469 Condensate disposalCondensate drain1. This water heater is a high efficiency appliance that produces condensate.2. Slope condensate tubing down

4710 Start-upChlorine concentration less than 200 ppm1. Do not fill the water heater or operate with water containing chlorine in excess of 200 ppm.

4810 Start-up Start the water heater1. Read and follow the Operating instructions in FIG.’s 10-2 and 10-3, pages 49 and 50.If water heater does not

49

1925Front View - Models SNR150-100 -- SNA285-1252917516191891322321102028111433Left Side (inside unit) -- Models SNR150-100 - SNA285-12

50 Figure 10-3 Operating Instructions - M

5111 Operating informationGeneralHow the water heater operatesThe Shield water heater combines an advanced stainless steel heat exchanger, electronic

52Water heater temperature regulationOperating temperature (target)The electronic control module senses water temperature in the tank and regulates wa

5311 Operating information (continued) OPERATION DISPLAY1. When the tank temperature falls below the set point minus the differential, the control w

54Shield control module• Press once to go into Menu Mode• Press again to exit Menu Mode• Press to toggle between digits when entering the hour, minut

5511 Operating information (continued) Status Display ScreensBy using the Previous/Next (, ) arrow keys on the electronic control module display p

5611 Operating information Status Display Screens (cont’d)By using the Previous/Next (, ) arrow keys on the electronic control module display pane

5712 MaintenanceMaintenance and annual startupTable 12A Service and Maintenance SchedulesService technician(see the following pages for instructions)

12 Maintenance Follow the service and maintenance procedures given throughout this manual and in component literature shipped with the water heater.

5912 Maintenance (continued)Check expansion tank1. Expansion tanks provide space for water to move in and out as the water expands due to temperatur

6The Shield - How it works...1335323634731372Rear View - Model SNA400-12521535323634725242837Rear View - Model SNA500-125Right Side (inside unit) - Mo

6012 Maintenance Check burner flame1. Inspect flame through observation window.2. If the flame is unsatisfactory at either high fire or low fire, t

12 Maintenance (continued)Oiled bearing circulators1. The circulator shipped with the Shield water heater is water-lubricated. No oiling is require

6213 Troubleshooting Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Alwa

6313 Troubleshooting (continued)Table 13A Troubleshooting Chart - No DisplayFAULT CAUSE CORRECTIVE ACTIONNo Display- No 120 VAC supplied to unit.

6413 Troubleshooting Table 13B - Inlet/Outlet Tank Sensor Resistance vs. TemperatureTemperature °F Resistance  Temperature °F Resistance 50 18,780

6513 Troubleshooting (continued)Table 13D Troubleshooting Chart - Noisy SystemFAULT CAUSE CORRECTIVE ACTIONNoisy Operation- Supply gas problem. Natu

6613 Troubleshooting Table 13E Troubleshooting Chart - Fault Messages Displayed on Water Heater Interface FAULT DESCRIPTION CORRECTIVE ACTIONFlame Se

6713 Troubleshooting (continued)Table 13E (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Water Heater Interface F

6813 Troubleshooting Table 13E (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Water Heater Interface FAULT DESCRI

6913 Troubleshooting (continued)Table 13E (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Water Heater Interface F

RatingsNotes:1. Shield water heaters require special gas venting. Use only the vent materials and methods specified in the Shield Installation and S

7013 Troubleshooting Table 13E (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Water Heater Interface FAULT DESCRI

7113 Troubleshooting (continued)Table 13E (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Water Heater Interface F

7213 Troubleshooting Combustion Analysis Procedure1. Press the SHUTDOWN button on the display until HTR:Off appears in the display window. 2. Remov

7313 Troubleshooting (continued)Gas valve adjustment procedureIf adjustment of the gas valve is deemed necessary, use the following procedures: (Note

7414 DiagramsBOX DEPICTSOPTIONAL ITEMSLADDER DIAGRAMLBL20026 REV C120 VAC24 VAC120VACTERMINAL STRIP120V SUPPLY "L"X1-6DHW PUMPRELAYBLOWERRE

7514 Diagrams (continued) DISPLAYX1-8X5-5X5-13X5-6X5-12INTEGRATED CONTROLBLOWERX1-1X2-2X2-1X1-7GASVALVEFLAMERODSPARKRODW/RGRRTWBKGR132WGBOX DEPICTSOP

Revision Notes: Revision A (ECO #C02299) initial release.Revision B (ECO #C02870) reflects the addition of a mixing valve to the piping diagrams (FIG

8The Shield water heater gas manifold and controls met safe lighting and other performance under tests specified in ANSI Z21.10.3 – latest

1/4” MIINIMUM CLEARANCEAROUND HOT WATER PIPING1” MINIMUM CLEARANCEAROUND VENT PIPEOPEN FRONTFigure 1-2 Alcove Installation - Minimum Required Clearan