Lochinvar 400-801 operation manual TEE with 1 Fitting on TOP Nipple Close Nipple

Page 15

3 Hydronic piping (continued)

Flow switch,reliefvalve and temperature and pressure gauge installation

Basic steps are listed below to guide you through the installation of the flow switch, relief valve, and temperature and pressure gauge provided with the unit.

1.For Models 400 - 501 install the close nipple on the outlet connection of the heat exchanger. Install the tee with the 3/4 inch fitting positioned vertically and on the top as shown in FIG. 3-1. For Models 601 - 801 install the tee directly to the outlet connection of the heat exchanger with the 3/4 inch fitting positioned vertically and on the top (see FIG. 3-2).

2.For Models 701 - 801 install the 3/4 inch close nipple in the tee. Install the relief valve on the 3/4 inch close nipple (FIG. 3-2). For Models 400 - 601 install the relief valve directly into the 3/4 inch fitting on the tee (FIG. 3-1).

3.Install the close nipple on the downstream side of the relief valve tee (FIG. 3-1).

4.Install the tee with the 1 inch fitting positioned vertically and on the top (FIG. 3-1).

5.Attach paddle #3 to the flow switch per the manufacturer’s instructions.

6.Install the assembled flow switch into the 1 inch fitting of the tee installed in Step 4 (see FIG. 3-1).

7.Install a field provided close nipple on the downstream side of the flow switch (see FIG.’s 3-1 and 3-2).

8.Install a field provided tee with the gauge fitting positioned vertically and on the top (FIG.’s 3-1 and 3-2)

9.Install the temperature and pressure gauge provided with the unit into the top fitting of the tee (a bushing may be necessary) installed in Step 8 (FIG.’s 3-1 and 3-2).

NOTICE

Be sure to install the flow switch so

that the arrow on the flow switch is

 

pointing in the direction of the flow

 

(see FIG. 3-3).

Outdoor Knight XL Installation & Operation Manual

Figure 3-1Flow Switch, Relief Valve and Temperature and Pressure Gauge Installation_Models 400 - 501

RELIEF VALVE

FLOW SWITCH

PADDLE

TEMPERATURE &

PRESSURE GAUGE

TEE WITH FITTING ON TOP (FIELD PROVIDED)

CLOSE NIPPLE

 

(FIELD PROVIDED)

IMG00390

TEE WITH 1" FITTING ON TOP

8' NIPPLE

CLOSE NIPPLE

(REQUIRED FOR MODELS 400 - 701)

TEE WITH 3/4"

 

FITTING ON TOP

 

Figure 3-2Flow Switch, Relief Valve and Temperature and Pressure Gauge Installation_Models 601 - 801

RELIEF VALVE

FLOW SWITCH

PADDLE

TEMPERATURE &

PRESSURE GAUGE

TEE WITH FITTING (FIELD PROVIDED)

CLOSE NIPPLE (FIELD PROVIDED)

TEE WITH 1" FITTING

ON TOP

IMG00389

CLOSE NIPPLE

TEE WITH 3/4"

FITTING ON TOP

15

Page 14 Page 16
Image 15
Page 14 Page 16
Contents
Outdoor Knight XL Models 400 Contents Please read before proceeding When servicing boilerStainless steel heat exchanger Outdoor Knight XL How it worksModel Models 601 Outdoor Knight XL Boiler Ahri Rating RatingsInstallation must comply with Determine boiler locationBefore locating the boiler, check Prevent combustion air contamination Provide clearancesOutdoor vent / air intake location Flooring and foundationInstall flue pipe assembly Models 400 Prepare boilerRemove boiler from wood pallet Models 701 3Install flue pipe assembly Models 701Gas conversions Model 4Installing Propane Orifice ModelLeveling the boiler Models 601Hydronic piping TEE with 1 Fitting on TOP Nipple Close Nipple Near boiler piping components Flow switch adjustmentNear boiler piping connections Circulator sizingVariable speed pump option Head Feet Pressure20F 25F 30F 35F Model 7Single Boiler Multiple Temperatures 8Single Boiler Primary/Secondary Piping Manifold Pipe Sizes in Inches mm Number of Units10Multiple Boilers Primary/Secondary Piping Temperature Wires to Loop Sensors 120VAC to Gas connections Connecting gas supply pipingPropane Gas Natural gasInches Check inlet gas supplyGas pressure Gas valve replacementLow voltage connections Field wiringInstallation must comply with Line voltage connectionsThermostat Outdoor temperature sensorHigh gas pressure switch Low gas pressure switchModBus Flow switchAlarm contacts Wiring of the cascade3Low Voltage Field Wiring Connections Condensate drain Condensate disposalFill and test water system Freeze protection when usedStart-up Check/control water chemistryInspect/check condensate lines and fittings Check for gas leaksCheck thermostat circuits Inspect/fill condensate systemCheck system and boiler Final checks before starting the boilerStart the boiler If boiler does not start correctlyFor Your Safety Read Before Operating Natural Gas Propane Set space heating operationVerify DHW mode Set domestic hot water DHW operationConfiguration of the cascade How the control module operates Operating informationGeneral How the boiler operatesProtection features Temperature controlBoiler temperature regulation Cascade Outdoor reset operation, if usedOperation Display Sequence of operationStandby, ready to start a new cycle User Access modesInstaller Outdoor Knight XL control moduleCall for Heat Information Dial Function Maintenance Maintenance and annual startup Service technicianOwner maintenance Maintenance Check boiler relief valve Flue vent system and air pipingCheck water system Check expansion tankInspect ignition and flame sense electrodes Check ignition ground wiringCheck all boiler wiring Check control settingsModel Kit Part Component Number Description Check flame signalCleaning boiler heat exchanger Review with ownerHigh Voltage Diagrams2Ladder Diagram