Lochinvar 50-210 service manual BLR SH 41% Rate

Page 12

Service Manual

1Service

Sequence of operation (continued)

Table 1A (continued from previous page) Sequence of operation - space heating and DHW

 

OPERATION

DISPLAY

 

 

8. If the DHW thermostat remains on for more than 30 minutes,

 

 

and the space heating call for heat is also on, then the control

BLR: SH 41% RATE

 

will turn on the boiler pump, turn off the DHW pump after 2

 

seconds, and resume modulating based on the space heating

 

set point. As long as both the space heating and DHW calls for

OUT: 123.0F(129)

 

heat remain active, the control will switch back and forth

 

 

between the two modes until one of them is satisfied.

 

 

 

9. Once both calls for heat are satisfied, the control will turn off the

BLR: POSTPURGE

 

burner. The blower will remain on for the 10 second postpurge

 

cycle. Any pumps that are running will continue to run for their

OUT: 127.4F(129)

 

respective pump delay times, then turn off.

 

 

 

10.

Boiler pump off, system pump continues its delay if longer.

BLR: Standby

 

 

OUT: 124.7F(129)

11.

System pump off.

BLR: Standby

 

 

OUT: 122.9F(129)

12

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Contents Models 50 Contents Please read before proceeding Handling ceramic fiber materialsNiosh stated First Aid When servicing boiler What is in this manual? ServiceMaintenance TroubleshootingService Near boiler pipingKnight wall mount display Smart Control Module Control inputsControl outputs General Operation How the boiler operatesHow the control module operates Sequence of operationSequence of operation OUT 123.8F129BLR SH 41% Rate Display panel menu access Display panel parameter access Temperature Data Parameter tableControl Circulation Service Temperature settings Viewable and changeable control parametersDHW settings Outdoor air resetData logging FunctionsShift reset curve Maximum SH set pointMinimum SH set point Outdoor air shutdownAnti-cycling Control modes SH controlling sensorSH source Boiler cascade addressService Notification Cascade offsetCirculation pumps Maintenance Maintenance and annual startup Service technicianOwner maintenance Maintenance Flue vent system and air piping Check water systemCheck expansion tank Check boiler relief valveCheck ignition ground wiring Check all boiler wiringCheck control settings Inspect ignition and flame sense electrodesCheck flame signal Cleaning boiler heat exchangerReview with owner Oiled bearing circulatorsTroubleshooting Before troubleshootingCheck control module fuses Check the followingNo Display No BurnerOperation Unit Does NotChecking temperature sensors Temperature ResistanceNoisy No PumpBoiler Pump System Pump DHW PumpSwitch/LWCO FlowFlame SequenceAnti-cycling No Flame IgnNo Flame RunningAuto Reset High LimitFan Low Fan Speed LowFan High Fan Speed HighSensor Open Sensor ShortedTemp O/Shoot Rem Ctrl Flt Parameters ProgrOpen Service Blk Watch Dog ErrorNo Error Stored Low 24 vacCombustion Analysis Procedure Gas Valve AdjustmentOr Obstruction Gas Supply PressureGas valve adjustment procedure 2Gas Valve AdjustmentPage

50-210 specifications

The Lochinvar 50-210 is a powerful and efficient boiler designed for residential and commercial heating applications. This model is a part of Lochinvar’s line of advanced heating solutions, known for their reliability, efficiency, and innovative technologies. The 50-210 offers a high thermal efficiency rating, ensuring that energy consumption is minimized while still providing excellent heating performance.

One of the standout features of the Lochinvar 50-210 boiler is its advanced control system. It is equipped with a user-friendly LCD display that allows easy access to system settings and real-time performance data. This technology enhances user experience, allowing for easy adjustments and monitoring, ensuring optimal performance based on specific heating needs.

The Lochinvar 50-210 is designed with a fully modulating burner, which means it can adjust its output to match the heating demand effectively. This feature not only provides superior comfort but also increases energy savings by preventing the boiler from running at full capacity when it's not necessary. Moreover, the modulating burner minimizes wear and tear, extending the lifespan of the unit.

In terms of safety, the Lochinvar 50-210 incorporates several features such as multiple temperature and pressure sensors, flame safeguard systems, and safety cut-off controls. These safeguard mechanisms ensure that the system operates safely and efficiently, providing peace of mind to users.

The construction of the Lochinvar 50-210 is robust, featuring high-grade stainless steel and a durable heat exchanger. This design helps resist corrosion, ensuring longevity and requiring minimal maintenance over the years. Additionally, its compact design allows for easier installation, making it suitable for various settings, even those with limited space.

Furthermore, the Lochinvar 50-210 operates quietly, which adds to its appeal for residential installations. Its environmental considerations are also noteworthy, with low emissions contributing to cleaner air quality.

Overall, the Lochinvar 50-210 is a sophisticated heating solution that blends efficiency, reliability, and advanced technology. With its user-friendly controls, modulating burner, safety features, and durable construction, it meets the heating demands of modern homes and commercial spaces, making it a top choice for those seeking dependable boiler performance.
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