Instruction/ maintenance manual of the product 150 - 800 Lochinvar
Go to page of 36
Service Manual Models: 150 - 800 T h i s m a n u a l m u s t o n l y b e u s e d b y a qualified heating installer / serv ice technician. Read all instructions, including this manual and the Armor W ater H eater Installation and Operation Manual, before installing.
2 Hazar d definitions The following defined terms are used thr oug hout this manual to bring attention t o the presence of hazards of various r isk level s or to important information concerning the life of the product.
Service Manual Please r ead bef or e proceeding Installer – R ead all instructions, including this manual and the Armor W ater H eater Installation and Operation Manual, before installing. P erform steps in the order give n. Ha ve this water heat er ser viced/inspected by a qualified serv ice t echnician at least annually .
4 Service Manual W hat is in this manual? Ser vice Near wa ter heater piping • T y pical system c omponents T he Ar mor water hea ter display • Display panel r eadout, buttons and their functions .
1 Ser vice Service Manual 5 T he Ar mor wa ter heater display.
1 Ser vice 6 Service Manual GAS PRESSURE SWITCH (OPTIONAL) DHW THERMO ST A T FLOW SW ITCH TA N K S E N S O R SEQU ENCER / BU ILDING MANAGEM ENT SYSTEM LOW VOL T AGE CONNEC TION BOARD INLET TEMPERA TUR.
Service Manual 7 LOW VOL T AGE CONNEC TION BOARD SMA R T SYSTEM CONTROL BOARD ALARM BELL AUX . DEVICE RELA Y RUNTIME CONT ACTS SEQU ENCER / B UILDING MANAGEMENT SYSTEM DHW PUMP IGNITER BLOW ER GAS V A.
1 Ser vice 8 Service Manual General Oper ation How the w ater heater operates The A r mor water heat er uses an advanced stainless steel heat ex changer and an electronic control module that allo ws fully condensing operation.
Service Manual 9 Sequence of oper ation T able 1A Sequence of operation OPERATION DISPLAY 1. Upon a call for heat, the control turns on the water heater pump. WHR: Standby OUT: 123.8F(129) 2. The control connects 120 V AC to the blower . The blower does not run at this time.
1 Ser vice 10 Service Manual Display panel menu access T able 1B Use this procedure to access menus from the display panel DISPLAY BUTTON OPERATION Enter Menu Code: 000 0 Hold for 5 seconds -- display.
Service Manual 11 Display panel parameter access T able 1C This is a typical example of accessing a parameter , shown for p arameter H3, cascade address DISPLAY BUTTON OPERATION >A General B N/A Beginning of menu listings.
1 Ser vice 12 Service Manual Parameter table T able 1D This table lists SMAR T SYSTEM control module parameters and where to access them MENU SUB ITEM DESCRIPTION SEE PAGE USER ACCESS INSTALLER ACCESS.
1 Ser vice Service Manual 13 1 Ser vice (continued) Viewable and changeable contr ol parameter s A: General Boiler model The control will display “ Armor Heater” as the model number because the same contr ol is used on several models. This will be display ed when par ameter A1 has been ac cessed.
1 Ser vice 14 Service Manual H: Control modes Control source The contr ol source parameter selects the method used to c ontrol the modulation of the water heat er . This parameter is adjustable by the installer by ac cessing parameter H2 . The control methods are as follo ws: 1 - Thermostat.
Service Manual 15 I: Circulation pumps DHW pump delay The DHW pump delay parameter sets the length of time the DHW (WHR) pump w ill run after a heater demand has been satisfied. Setting the delay time to 0 will disable the pump. This parameter is adjustable by the installer b y accessing parameter I3 .
2 Maintenance 16 Service Manual Maintenance and annual star tup T able 2A Service and Maintenance Schedules Ser vice tec hnician (see the following p ages for instructions) General: • Address report.
2 Maintenance Service Manual 17 2 Maintenance (continued) Follo w the ser vice and maintenance pr ocedures given thr oughout this manual and in component literature shipped with the water heater . Failure t o perfor m the serv ice and maint enance could result in damage t o the water heater or syst em.
2 Maintenance 18 Service Manual Flue vent system and air piping 1. Visually inspect the entir e flue gas venting system and air piping for blockage, deterior ation or leakage. Repair an y joints that show signs of leakage. V erify that air inlet pipe is connected and pr operly sealed.
2 Maintenance Service Manual 19 2 Maintenance (continued) Inspect ignition and flame sense electrodes 1. R emove the ignition and flame sense electrodes from the water heater heat e xchanger acc ess cov er . 2. Re move an y deposits accumulated on the ignition/flame sense electrode using sandpaper .
20 Service Manual 2 Maintenance Check flame signal 1. At high fire the flame signal sho w n on the display should be at least 10 microamps. 2. A lowe r flame sig nal may indicat e a fouled or damaged flame sense electrode.
3 T r oubleshooting Service Manual 21 Label all wires prior to disconnection when serv icing controls. Wiring errors can cause improper and danger ous operation. Always disc onnect power t o the water heater befor e ser vicing. Failure t o comply could result in sev ere personal injur y , death, or substantial property damage.
22 Service Manual 3 T r oubleshooting T able 3A T roubleshooting Chart - No Display FAULT CAUSE CORRECTIVE ACTION No Display - No 120 V AC supplied to unit. • Check external line switch, fuse, or breaker . • Check position of ON/OFF switch. Turn switch to the ON position.
3 T r oubleshooting Service Manual 23 3 T r oubleshooting (continued) T able 3B - Inlet/Outlet System Sensor Resistance vs. T emperature T emperature °F Resist ance Ω T emperature °F Resist ance Ω.
3 T r oubleshooting 24 Service Manual T able 3D T roubleshooting Chart - Noisy System FAULT CAUSE CORRECTIVE ACTION Noisy Operation - Supply gas problem. Natural gas pressures should be between 4 inches w .c. and 14 inches w .c. LP gas pressures should be between 8 inches w .
Service Manual 25 3 T r oubleshooting (continued) T able 3E T roubleshooting Chart - Fault Messages Displayed on W ater Heater Interface FAULT DESCRIPTION CORRECTIVE ACTION Gas Pressur e SW (will require a manual reset once the c ondition has been correct ed.
26 Service Manual 3 T r oubleshooting T able 3E (continued from previous page) T roubleshooting Chart - Fault Messages Displayed on Water Heater Interface FAULT DESCRIPTION CORRECTIVE ACTION No Flame Ign (will require a manual reset once the c ondition has been correct ed.
Service Manual 27 3 T r oubleshooting (continued) T able 3E (continued from previous page) T roubleshooting Chart - Fault Messages Displayed on Water Heater Interface FAULT DESCRIPTION CORRECTIVE ACTION No Flam e Running (will require a manual reset once the c ondition has been correct ed.
3 T r oubleshooting 28 Service Manual T able 3E (continued from previous page) T roubleshooting Chart - Fault Messages Displayed on Water Heater Interface FAULT DESCRIPTION CORRECTIVE ACTION Manual Reset High Limit (will require a manual reset once the c ondition has been correct ed.
Service Manual 29 3 T r oubleshooting (continued) T able 3E (continued from previous page) T roubleshooting Chart - Fault Messages Displayed on Water Heater Interface FAULT DESCRIPTION CORRECTIVE ACTION F an High OR F an Speed High (will require a manual reset once the c ondition has been correct ed.
3 T r oubleshooting 30 Service Manual T able 3E (continued from previous page) T roubleshooting Chart - Fault Messages Displayed on Water Heater Interface FAULT DESCRIPTION CORRECTIVE ACTION T emp O/Shoot (continued) The temperature rise across the heat exchanger has exceeded the set parameters for the water heater .
Service Manual 31 3 T r oubleshooting (continued) T able 3E (continued from previous page) T roubleshooting Chart - Fault Messages Displayed on Water Heater Interface FAULT DESCRIPTION CORRECTIVE ACTION Ser vice Blk While the unit is in Service Mode, the outlet temperature has exceeded 185°F .
3 T r oubleshooting 32 Service Manual Combustion Analysis Pr ocedur e 1. T ur n the main pow er off to the water heater b y placing the “On/Off ” switch in the OFF position. 2. Re move the flue temperature sensor fr om the flue pipe connection. No te : Combustion measurements will be made at this point.
Service Manual 33 3 T r oubleshooting (continued) Gas valv e adjustment pr ocedure If adjust ment of the gas valve is deemed necessary , use the following procedur es: ( No te : The procedur es below are model specific.) Models 150 - 285 Locate the throttle adjustment scr ew on the side of the venturi valv e (FIG.
34 Model 500 Locate the throttle adjustment scr ew on top of the gas valv e, see FIG. 3-4. U sing a screw dr iv er , turn the scr ew a 1/4 turn counter clockw ise to increase CO 2 lev els or a 1/4 turn clockw ise to decrease CO 2 lev els.
35 NOTES.
Revision Notes: Revision B (AW-SER-Rev B) reflect s the addition of the Dungs information to the manual. Revision C (ECO #C02407) reflects the addition of the air pressure switch, FIG . 3-1, removal of pocket pc references and changes made to the Circulation Pump section (page 15).
An important point after buying a device Lochinvar 150 - 800 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Lochinvar 150 - 800 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Lochinvar 150 - 800 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Lochinvar 150 - 800 you will learn all the available features of the product, as well as information on its operation. The information that you get Lochinvar 150 - 800 will certainly help you make a decision on the purchase.
If you already are a holder of Lochinvar 150 - 800, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Lochinvar 150 - 800.
However, one of the most important roles played by the user manual is to help in solving problems with Lochinvar 150 - 800. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lochinvar 150 - 800 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
