Lochinvar SQUIRE SDT/SET065 - 119 User Manual

Installation & OperationManualModels: SDT/SET065 - 119This manual must only be used by aqualified heating installer / servicetechnician. Read all

SDT/SET Installation & Operation Manual10KNIGHTBOILERDOMESTICHOT WATERCIRCULATORBACKFLOWPREVENTERPRESSUREREDUCING VALVEPRESSUREGAUGEANTI-SCALDMIXI

SDT/SET Installation & Operation Manual11PRESSURE REDUCING VALVEPRESSUREGAUGEBACKFLOWPREVENTERMAKE UP WATERAIR SEPARATORSYSTEMSUPPLY SENSORTOSYST

SDT/SET Installation & Operation Manual124 Domestic Side (Tank) Piping Basic Domestic PipingFigure 4-2 on page 15 shows typical domestic water pi

SDT/SET Installation & Operation Manual134 Domestic Side (Tank) Piping (continued)Temperature & Pressure (T&P) Relief ValveFor protection

SDT/SET Installation & Operation Manual14NOTICEVerify that the combinationtemperature and pressure relief valvecomplies with local codes. If thec

SDT/SET Installation & Operation Manual15EXPANSION TANKUNION(TYPICAL)SHOCK ARRESTORSHUTOFF VALVESHUTOFF VALVEBACKFLOWPREVENTORSHUTOFF VALVESHUTOFF

SDT/SET Installation & Operation ManualRESET BUTTONTHERMOSTATDIAL POINTERTHERMOSTATPROTECTIVECOVER165 WiringElectrical Connection (Squire solar w

Installation & Operation Manual5 Wiring (continued)17Figure 5-2 Combination Thermostat and High Limit Control, SET 065-SET119RDBKGRRDBKBKRDSERVIC

SDT/SET Installation & Operation Manual185 WiringIndirect Water Heater Sensor Setup (Knight Boiler)Label all wires prior to disconnection when se

SDT/SET Installation & Operation Manual195 Wiring (continued)Indirect Water Heater Controlled Using Aquastat and Zone Circulator / Valve1. Instal

Hazard definitionsThe following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels ort

SDT/SET Installation & Operation Manual206 Start-up and Check-out1. Make sure the system is free of leaks and that air is purged from the system.

SDT/SET Installation & Operation Manual7 Maintenance* Make sure that the rest of the solar, boiler and domestic water piping is free of leaks.* I

SDT/SET Installation & Operation Manual228 Performance Data Table 8B SDT Backup Recovery PerformanceHow to Properly Size Your Indirect Water Hea

SDT/SET Installation & Operation ManualTable 8D First Hour Rating - 180°F Boiler Loop Water (Universal Sizing. Upper Coil SDT Models)First Hour R

SDT/SET Installation & Operation ManualTable 8E First Hour Rating 200°F Boiler Loop Water (Universal Sizing, Upper Coil SDT Models)First Hour Rati

SDT/SET Installation & Operation Manual259 High Output Piping High Domestic Hot Water UsageWhen a large amount of hot water is required by a Dome

SDT/SET Installation & Operation Manual269 High Output Piping BACKFLOW PREVENTERPRESSUREREDUCING VALVEPRESSUREGAUGEMAKE UP WATERSYSTEM SUPPLYSENS

SDT/SET Installation & Operation Manual279 High Output Piping (continued)PRESSURE REDUCING VALVEPRESSUREGAUGEBACKFLOWPREVENTERMAKE UP WATERSYSTEM

Revision Notes: Revision A (ECO C05788) initial release.Revision B (ECO C05936) reflects the addition of “HighOutput Piping” section on pages 25-27,

SDT/SET Installation & Operation ManualPlease read before proceedingInstaller – Read all instructions beforeinstalling. Perform steps in the orde

1 General InformationThe Lochinvar SDT/SET series indirect water heater (FIG. 1-1) is designed to generate domestic hot water inconjunction with a sol

52 Pre-installation1. The installation must conform to the instructions in this manual and all applicable local, state, provincial, and national code

6Multiple Tank Connections (Boiler Side)Multiple tank installations must be done in the “reverse-return”manner. The reason for this is to create the

7SDT/SET Installation & Operation ManualSOLAR COIL0.002.004.008.00SDT / SET065 - 080 FRICTION LOSS10.00BOILER COIL6.00HDFT/SOLAR COILBOILER COIL0.

SDT/SET Installation & Operation Manual8SOLUTIONBOILERSQUIRECOLD WATERINTEMPERATURE /PRESSUREGAUGEAIR SEPARATORBALL VALVE(TYPICAL)UNION(TYPICAL)PR

Installation & Operation Manual9SOLUTIONBOILERSQUIRECOLD WATERINTEMPERATURE /PRESSUREGAUGEAIR SEPARATORBALL VALVE(TYPICAL)UNION(TYPICAL)PRESSURERE