2 Prepare boiler

Remove boiler from wood pallet

1.After removing the outer shipping carton from the boiler, remove the parts box.

2.Remove the front door to access the lag bolts in front of the unit (FIG. 2-1).

3.To remove the boiler from the pallet (after removing the front door):

a.Remove the two lag bolts from the wood pallet inside the boiler (FIG. 2-1).

b.Detach the boiler from the lag bolts in the rear of the unit, see FIG. 2-1.

NOTICE

Do not drop the boiler or bump the jacket

on the floor or pallet. Damage to the

 

boiler can result.

Figure 2-1Boiler Mounted on Shipping Pallet

. 2

Gas conversions

Installation & Operation Manual

5.After installation is complete, attach the propane conversion label (in the conversion kit bag) next to the boiler rating plate. Attach the LP caution label (in the conversion kit bag) to the left side of the unit in the lower left corner.

6.Replace the top and front access covers.

Table 2A LP Conversion Table

 

LP Conversion Table

Model

 

LP Orifice Stamping

81

 

80

106

 

105

151

 

150

211

 

210 / W150

286

 

285

￿WARNING After converting to LP, check combustion per the Start-up procedure in Section 10

of this manual. Failure to check and verify combustion could result in severe personal injury, death, or substantial property damage.

Figure 2-2Installing Propane Orifice

￿WARNING

For a boiler already installed, you must turn off gas supply, turn off power and allow boiler to cool before proceeding. You must also completely test the boiler after conversion to verify performance as described under Start-up, Section 10 of this manual. Failure to comply could result in severe personal injury, death, or substantial property damage.

You must install a propane orifice to operate the Knight boiler on propane gas. Verify when installing that the orifice size marking matches boiler size (Table 2A).

Leveling the boiler

1.Set the boiler in place and check level.

a)Adjust legs if necessary to level boiler, see FIG. 2-3 below.

1.Remove the top and front access covers from the unit (no tools required for removal).

2.Remove the three screws securing the gas valve to the venturi (FIG. 2-2).

3.Locate the propane orifice disk from the conversion kit bag. Verify that the stamping on the orifice disk matches the boiler size (see Table 2A).

Place the orifice into the black rubber grommet in the side of the gas valve and secure in the valve (FIG. 2-2).

4.Reposition the gas valve against the venturi and replace the screws (FIG. 2-2) securing the valve to the venturi.

Figure 2-3Leveling Legs on the Boiler

13

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Lochinvar 81 - 286 operation manual Prepare boiler, Remove boiler from wood pallet, Gas conversions, Leveling the boiler

81 - 286 specifications

Lochinvar 81 - 286 is a state-of-the-art boiler recognized for its efficiency and reliability in both residential and commercial applications. This high-performance heating solution is designed to meet the diverse needs of users while adhering to modern environmental standards.

One of the standout features of the Lochinvar 81 - 286 is its advanced condensing technology. This allows the unit to harness more heat from the combustion gases, significantly boosting its thermal efficiency. With an impressive efficiency rating of over 95%, users can expect lower energy bills and reduced carbon emissions, making this boiler an environmentally friendly choice.

The Lochinvar 81 - 286 incorporates a robust stainless steel heat exchanger that guarantees durability and longevity. This corrosion-resistant material not only prolongs the unit's life but also ensures consistent performance over time. Additionally, the heat exchanger’s design facilitates optimal heat transfer, further enhancing the boiler's efficiency.

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The boiler also supports a variety of installation configurations, providing flexibility for different building layouts. Its compact design allows for easy installation in restricted spaces, while versatile venting options facilitate integration into various systems.

Safety is a paramount consideration in the design of the Lochinvar 81 - 286. The unit comes with integrated safety features such as a built-in diagnostic system that alerts users to any potential issues before they escalate. This proactive technology helps in maintaining seamless operation and reducing downtime.

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