Table of Contents
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1nstallaion manual - contents
Accessories
C omponents & Dimentions
Warnings
Rating Plate
Location Selection
Plumbing
Pressure Relief Valve
C ondensate Disposal
G as Piping
G as Pressure testing
Venting
Electrical C onnections
Remote C ontrol Installation
C omputer Board Settings
C ascade C onnect ion and Set-up Procedures ·· · ·· ·· · · ·· ·· ·· ·· ·· · · · · ·· · ·· ·· · · ·· ·· ·· ·· ·· ·· · · ·· ·· · ·· · · · · ·· ·· ·· ·· ·· ·· 35
DIP Switch Settings
Installation C hecklist
Factory Setting of Dip Switch ······························································································ 4 7
C ompleting the Install
Wiring Diagram
Ladder Diagram
C ompone n ts Diagram & Parts List · ·· ·· ·· ·· ·· ·· · · · · ·· · ·· ·· · · ·· ·· ·· ·· ·· · · · · ·· · ·· ·· · · ·· ·· ·· ·· ·· ·· · · ·· ·· · ·· · · · · ·· ·· ·· ·· ·· ·· 5 2
Include d with the W ater H eate r ·································· ··· ······ 3
Optio nal Accessories · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 4
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K ey C omponents : C R - A ·· ·· · · · · ·· · ·· ·· · · ·· ·· ·· ·· ·· ·· · · ·· ·· · ·· · · · · ·· ·· ·· ·· ·· ·· 6
Dimensions : C R - A · · · ·· ·· ·· ·· ·· · · · · ·· · ·· ·· · · ·· ·· ·· ·· ·· ·· · · ·· ·· · ·· · · · · ·· ·· ·· ·· ·· ·· 7
K ey C omponents : C R ·························································· 8
K ey C omponents : CC ·· ·· ·· ·· · · · · ·· · ·· ·· · · ·· ·· ·· ·· ·· ·· · · ·· ·· · ·· · · · · ·· ·· ·· ·· ·· ·· 9
Dimensions : C R , CC ···························································· 1 0
Installation W arnings ··························································· 11
C heck R ating Plate ······························································ 13
L ocati ng the W ater H eater · · · · ·· · ·· ·· · · ·· ·· ·· ·· ·· ·· · · ·· ·· · ·· · · · · ·· ·· ·· ·· ·· ·· 1 4
Mou nting the Uni t to the W all ·· · ·· ·· · · ·· ·· ·· ·· ·· ·· · · ·· ·· · ·· · · · · ·· ·· ·· ·· ·· ·· 1 5
Plumbing and W ater C onnection G uidelines ······················· 1 6
W ater Pipin g G uidel ines ······················ ·················· ········ ······ 1 7
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Disp osal of C on dens ate · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 1 9
C ondensate Drai n & C lean ing ············································· 2 0
G as Pipin g G uideli nes ························································· 2 1
G as supply Line Pres s ures ·················································· 2 1
G as Pipe Sizing C ha rt · ·· ·· ·· · · · · ·· · ·· ·· · · ·· ·· ·· ·· ·· ·· · · ·· ·· · ·· · · · · ·· ·· ·· ·· ·· ·· 22
Mea suring Inlet G as Pres s ure ··························· ········ ······· ··· 2 3
W arning ··············································································· 24
V enting G uidelines ······························································· 24
C ontaminated Make - U p Air W ill Damage the Unit ·············· 2 7
Exha ust V ent Pipe Mate rials · · ·· · ·· ·· · · ·· ·· ·· ·· ·· ·· · · ·· ·· · ·· · · · · ·· ·· ·· ·· ·· ·· 2 7
V enting C learances · ·· ·· ·· ·· ·· · · · · ·· · ·· ·· · · ·· ·· ·· ·· ·· ·· · · ·· ·· · ·· · · · · ·· ·· ·· ·· ·· ·· 28
Allowable V ent L ength s · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 2 9
V ent C onfiguration Options ······· ············ ······· ······· ·· ······· ········ 2 9
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· · · ·· ·· · · ·· ·· ·· ·· ·· ·· · · · · ·· · ·· ·· · · ·· ·· ·· ·· ·· · · · · ·· · ·· ·· · · ·· ·· ·· ·· ·· ·· · · ·· ·· · ·· · · · · ·· ·· ·· ·· ·· ·· 4 0
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