Harman HydroFlex 60 Pellet Boiler - Page 14

14
3-90-233R24_11/13
Boilers intended to be connected to an existing boiler or boiler system shall:
1. Becapableofbeinginstalledwithoutinterferingwiththenormaldeliveryofheatedwaterfromtheoriginalboilertothe
radiationsystem.
2. Becapableofbeinginstalledtooperateasintendedwithoutaffectingtheoperationoftheelectricalandmechanicalsafety
controlsoftheoriginalboiler.
3. Provide,uponcompletionoftheinstallation,forachangeoverfromonefueltotheotherwithoutrequiringthemanual
adjustmentofanycontrolsorcomponentsotherthanthethermostats.
4. Becompatiblewiththeoperationofaservicewater-heatingcoilwithintheoriginalboilerwithoutbypassingtheoperation
ofthesolid-fuelboiler.
5. Haveprovisionforpreventing,oradequatewatercapacitywithintheboilertoprevent,damagetotheboilerfromlossof
circulationduetoelectricalpowerfailure.
6. Be capable ofbeing installed withoutchanging the function of thecontrol or rewiring of theoriginal boiler.A wiring
interconnectionispermitted.Theelectricalsystemofbothboilersshallbepoweredfromasinglebranchcircuitwithout
exception.
(CAN/CSA-B366.1-M91)
7. PertainingtoCAN/CSA-B365-01,Haveaclearlylabelleddevice,locatedateachentrancetotheboilerarea,whichcan
bethrowntodiscontinueoperationtothefeedsystem.
Anti-freeze and/or boiler water treatment:
Thereisnorestrictiononthetypeofcommercialantifreezeused.Whenllingtheboilerwatersystem,itisrecommended
thatsomeformofboilerwatertreatmentbeused.
Installation-Plumbing
EXAMPLE OF PIPING WITH AN INDEPENDENT CIRCULATOR SYSTEM
CONNECTED TO AN EXISTING OPERATIONAL BOILER
* BOILER DRAIN, 3/4" NPT MALE X 3/4" HOSE
* 3/4" NPT MALE PLUG
RETURN 3/4"
SYSTEM SUPPLY
* AUTOMATIC AIR VENT
* TEMP/PRESSURE
GAUGE
* PRESSURE RELIEF VALVE
PIPE TO WITHIN
6" OF THE
FLOOR OR A
FLOOR DRAIN
UNION
OUT
UNION
SHUT-OFF VALVE
EXISTING
BOILER
UNION
NOTE: NOT SHOWN IN THIS DRAWING ARE ALL OF THE
ASSOCIATED PIPING AND CONTROLS THAT SHOULD
ALREADY BE IN PLACE WITH THE EXISTING BOILER
SYSTEM. FOR EXAMPLE, THE EXPANSION TANK, THE
COLD WATER SUPPLY , AIR REMOVAL SYSTEM ETC... IT IS
EXTREMELY IMPORTANT THAT THIS BOILER BE
INSTALLED BY A QUALIFIED INSTALLER AND THAT ALL
EXISTING CONTROLS AND SAFETY DEVICES ARE
VERIFIED AS OPERATIONAL.
* ITEMS SUPPLIED
NOTE: ALWAYS REFER TO THE INDIVIDUAL COMPONENTS
RECOMMENDED INSTALLATION INSTRUCTIONS FOR THE PROPER
MOUNTING POSITION AND LOCATION WITHIN THE PIPING SYSTEM.
CIRCULATOR
SHUT-OFF
VALVE
SHUT-OFF
VALVE
UNION
SUPPLY 3/4"
SYSTEM RETURN
UNION
IN
BALANCING VALVE
SHUT-OFF VALVE
UNION
CIRCULATOR
NOTICE: When installing with the Atmospheric Conversion,
all of the pressurized system components shown are not
necessary. Air vents or bleeders should be removed from the
plumbing system to prevent air from entering the lines.
NOTE: Cold return water temperature (Sustained temperatures below 140 degrees
Fahrenheit) will lead to condensation or moisture in the firebox. This moisture can
lead to creosote formation. To help minimize moisture and creosote, it is strongly
recommended that some method of temperature balance is incorporated into the
return system.