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SAFe INSTAllATIoN, uSe AND SerVICe.......................................... 3
APProVAlS .......................................................................................... 3
GeNerAl SAFeTy INFormATIoN ...................................................... 4
Precautions ........................................................................................................4
Grounding Instructions .......................................................................................4
Hydrogen Gas Flammable .................................................................................4
INTroDuCTIoN .................................................................................... 6
Abbreviations used ............................................................................................6
Qualifications .....................................................................................................6
iComm™ & bACnet Compatible .......................................................................6
Preparing For The Installation ............................................................................6
FeATureS AND ComPoNeNTS ......................................................... 7
basic operation .................................................................................................7
Top View ............................................................................................................8
Side Views .........................................................................................................9
INSTAllATIoN CoNSIDerATIoNS ................................................... 10
rough In Dimensions .......................................................................................10
recovery Capacities ........................................................................................11
locating The Water Heater ..............................................................................11
extended Vent Terminations ............................................................................12
optional Concentric Terminations ....................................................................12
Hard Water .......................................................................................................12
Circulation Pumps ............................................................................................12
Insulation blankets ...........................................................................................12
INSTAllATIoN reQuIremeNTS ...................................................... 13
Gas Pressure requirements ............................................................................13
Supply Gas line ...............................................................................................13
Supply Gas regulator ......................................................................................13
Power Supply ...................................................................................................13
Solar loop ........................................................................................................14
mixing Valves ...................................................................................................14
Closed Water Systems.....................................................................................14
Thermal expansion ..........................................................................................14
Temperature-Pressure relief Valve .................................................................15
Condensate Drain ............................................................................................16
Air requirements .............................................................................................17
unconfined Space ............................................................................................17
Confined Space ...............................................................................................17
Fresh Air openings For Confined Spaces .......................................................18
outdoor Air Through Two openings.................................................................18
outdoor Air Through one opening ..................................................................18
outdoor Air Through Two Horizontal Ducts......................................................18
outdoor Air Through Two Vertical Ducts ..........................................................19
Air From other Indoor Spaces .........................................................................19
Commonwealth of massachusetts ...................................................................20
VeNTING INSTAllATIoN ................................................................... 21
General Venting Information ............................................................................21
General Venting Instructions ............................................................................21
Venting requirements ......................................................................................22
Venting Installation Sequence ..........................................................................23
Power Vent Installation ....................................................................................23
tAbLE Of COntEnts
Direct Vent Installation .....................................................................................23
Vertical Termination Installation .......................................................................25
Sidewall Termination Installation ......................................................................27
Concentric Termination Installation ..................................................................28
4 Inch Concentric Termination Installation .......................................................29
Venting Arrangements ......................................................................................32
Termination Clearances Sidewall Power Vent .................................................34
Termination Clearances Sidewall Direct Vent ..................................................35
WATer HeATer INSTAllATIoN ........................................................ 36
Condensate Drain Installation ..........................................................................36
Supply Gas line Installation ............................................................................37
electrical Wiring ...............................................................................................39
Water line Connections ...................................................................................40
T&P Valve Discharge Pipe ...............................................................................40
TemPerATure reGulATIoN .......................................................... 41
High Temperature limit Control (eCo) ............................................................41
Thermostat Control ..........................................................................................41
CoNTrol SySTem oPerATIoN ...................................................... 42
overview ..........................................................................................................42
Control System Navigation ..............................................................................42
user Settings & Control System menus ...........................................................45
Start Up ............................................................................................ 50
prior to Start up ................................................................................................50
Filling the Water Heater ...................................................................................50
Initial Start up ..................................................................................................50
Checking The Firing rate ................................................................................53
High Altitude Installations .................................................................................53
lIGHTING THe WATer HeATer ....................................................... 54
lighting & operation labels .............................................................................54
TroubleSHooTING ......................................................................... 55
Installation Checklist ........................................................................................55
Sequence of operation ...................................................................................55
Sequence of operation Flow Chart .................................................................56
operational Problems ......................................................................................57
Fault And Alert Conditions ................................................................................58
mAINTeNANCe ................................................................................... 61
General ............................................................................................................61
maintenance Schedule ....................................................................................61
Draining And Flushing ......................................................................................61
Filling the Water Heater ..................................................................................62
Sediment removal ...........................................................................................62
lime Scale removal ........................................................................................62
Powered Anode rods ......................................................................................63
Drain Valve and Access Panels .......................................................................63
Temperature-Pressure relief Valve Test ..........................................................63
Vent System .....................................................................................................63
DIAGrAmS .......................................................................................... 64
CCb - Central Control board layout ................................................................64
Wiring Diagram ...............................................................................................65
Circulation Pump Wiring Diagrams ..................................................................66
lImITeD WArrANTy .......................................................................... 68
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