GLYCOL IN STEEL WATER TANKS ............................................................................................................................................75 HOW TO CLEAN A GARN UNIT (SAVING THE TREATED WATER) .............................................................................................75
F. ELECTRIC ISOLATION AND PROPER GROUNDING TO PREVENT ELECTROLYSIS CORROSION....................................... 78
UNDIRECTED CURRENT - TERMINOLOGY: .............................................................................................................................. 78 CORROSION FROM UNDIRECTED CURRENT: .........................................................................................................................78 PROTECTION METHODS (OPTIONS FOR PROTECTION): .........................................................................................................79 FOR EXISTING CUSTOMERS: ..............................................................................................................................................79 FOR NEW CUSTOMERS: .....................................................................................................................................................79 ELECTRIC ISOLATION: ............................................................................................................................................................. 79 IF ELECTRIC HEATING ELEMENTS ARE INSTALLED: ............................................................................................................79 LOW VOLTAGE SENSORS: ..................................................................................................................................................79 AIR INTAKE DAMPER: ........................................................................................................................................................80 UNITS WITHOUT ELECTRIC HEATING ELEMENTS: ..................................................................................................................80 FULL ISOLATION (OPTION 1)..............................................................................................................................................80 SINGLE POINT GROUNDING (OPTION 2): ..........................................................................................................................82 UNITS WITH ELECTRIC HEATING ELEMENTS: .........................................................................................................................84 MOTOR ISOLATION BUSHINGS INSTALLATION: .....................................................................................................................85
G. OPERATION ............................................................................................................................................................... 87
STARTING A FIRE ....................................................................................................................................................................87 CONDENSATION LEAK POINTS DURING COLD FIRING............................................................................................................89 OVERVIEW OF THE DIGITAL CONTROLLER .............................................................................................................................89 DIGITAL READOUT: ............................................................................................................................................................90 OPERATIONAL SAFETY GUIDE ................................................................................................................................................91 APPROVED FUELS...................................................................................................................................................................91 OPERATION AT HIGHER ALTITUDES .......................................................................................................................................92
H. MAINTENANCE.......................................................................................................................................................... 93
B LOWER W HEEL G ASKET /W HEEL R EPLACEMENT & R EMOVAL ( AS NECESSARY ): ..................................................................................... 93 A SH R EMOVAL : ( FREQUENTLY )......................................................................................................................................................95 H EAT E XCHANGER /F LUE T UBE C LEANING : (1 PER YEAR OR AS NECESSARY ) ............................................................................................95 C HIMNEY C LEANING : (1 PER YEAR OR AS NECESSARY ) ........................................................................................................................95 C LEANOUT C OVER G ASKETS : ( AS NECESSARY ) ..................................................................................................................................96 PREVENTING THE CLEANOUT GASKETS FROM STICKING ..................................................................................................97 C LEAN B LOWER M OTOR : (2 PER YEAR )...........................................................................................................................................98 C OMBUSTION A IR I NTAKE H OOD : ( FREQUENTLY ) ..............................................................................................................................98 F UEL L OADING D OOR G ASKET : ( EVERY 5 YEARS ) ............................................................................................................................... 98 M ANWAY C OVER G ASKET : (1 PER YEAR OR AS NECESSARY ) – SPUN MANWAY ONLY ........................................................................100 F IREBRICK R EPLACEMENT : ( AS NECESSARY ) ....................................................................................................................................102 S ECONDARY R EACTION C HAMBER (SRC): ( EVERY 5 TO 10 YEARS )......................................................................................................103 S PRING S HUTDOWN /W ET L AYUP : ( END OF HEATING SEASON ) ..........................................................................................................104 M AINTENANCE S CHEDULE :.........................................................................................................................................................105
I. TROUBLE SHOOTING ............................................................................................................................................... 106
D IGITAL C ONTROLLER ................................................................................................................................................................106 L ACK OF H EAT IN B UILDING ........................................................................................................................................................106 D RAFT I NDUCER F AILS TO O PERATE ..............................................................................................................................................106 N OISY B LOWER W HEEL .............................................................................................................................................................106
GARN WHS 1000 and WHS 2000 Manual © HY-C Company LLC - September 2024
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