Reliance Water Heaters N71120NE - Manual (Page 2)

2
WATer HeATer INSTALLATIoN ................................................... 20-23
Water Line Connections .................................................................. 20
Water (Potable) Heating and Space Heating............................................20
Thermometer (Not Supplied) ....................................................................20
Water Piping Diagrams .............................................................................20
T&P Valve Discharge Pipe ............................................................... 20
Installation Diagrams ....................................................................... 21
Code restrictions ............................................................................ 21
Heater Wiring ................................................................................... 22
Gas Piping ....................................................................................... 23
Purging ............................................................................................ 23
Gas Pressure Regulator .................................................................. 23
oPerATIoN ......................................................................................... 24
General ............................................................................................ 24
Filling ............................................................................................... 24
Adjustments ..................................................................................... 24
SequeNCe of oPerATIoN ............................................................. 24
Lighting & operation Label .............................................................. 25
Checking Venting ............................................................................. 26
Checking the Igniter Assembly ........................................................ 26
Igniter Assembly .............................................................................. 26
Main Burner ..................................................................................... 26
Gas Valves ....................................................................................... 26
Checking the Input ........................................................................... 27
High Altitude Installations ................................................................ 27
mAINTeNANCe ................................................................................... 28
Venting System ................................................................................ 28
remote Storage Tank Temperature Control .................................... 28
Temperature-Pressure Relief Valve Test ......................................... 28
Hot Water odor ................................................................................ 28
Anode rod Inspection ..................................................................... 29
Draining and flushing ...................................................................... 29
To Drain the Water Heater Storage Tank ..................................................29
To flush the Water Heater Storage Tank ..................................................29
recommended Procedure for Periodic removal or Lime Deposits
from the Tank Type\ Commercial Water Heaters ............................. 29
DeLiming Solvents ........................................................................... 30
Tank Cleanout Procedure ................................................................ 30
Deliming using flo-Jug method ................................................. 30-31
Ignition module System ................................................................... 31
System Diagnostics ......................................................................... 31
SerVICe .............................................................................................. 32
electrical Servicing ............................................................................... 32
for Your INformATIoN ................................................................. 32
Start up Conditions .......................................................................... 32
operational Conditions .................................................................... 32
"Air" in the Water faucets .........................................................................32
High Water Temperature Shut off System ................................................32
Sequence of operation flow Chart ................................................. 33
operational Checklist ...................................................................... 34
WATer PIPINg DIAgrAmS ........................................................... 35-49
mANIfoLD KITS .................................................................................. 50
NoTeS ............................................................................................51-54
WArrANTY ......................................................................................... 55
table of contents
SAfe INSTALLATIoN, uSe AND SerVICe.......................................... 3
geNerAL SAfeTY INformATIoN ................................................... 4-5
Precautions ........................................................................................ 4
INTroDuCTIoN .................................................................................... 6
qualifications ..................................................................................... 6
feATureS AND ComPoNeNTS ......................................................... 7
The Hydro Cannon (Self Cleaning System) ...................................... 7
High Limit Switch ............................................................................... 7
electronic Ignition Control .................................................................. 7
exhaust Inducer (blower Assy.) ......................................................... 7
uncrating ........................................................................................... 7
Low gas Pressure Switch ................................................................. 7
INSTALLATIoN CoNSIDerATIoNS ................................................ 8-11
Rough In Dimensions ........................................................................ 8
recovery Capacities .......................................................................... 8
gas and electrical Characteristics ..................................................... 8
Locating The Water Heater ................................................................ 9
Clearances ........................................................................................ 9
Installation on Combustible flooring ............................................... 10
Insulation Blanket ............................................................................ 10
Hard Water ...................................................................................... 10
Circulation Pumps ...................................................................... 10-11
High Altitude Installations .................................................................11
INSTALLATIoN requIremeNTS ................................................. 12-15
gas Pressure requirements ........................................................... 12
Supply gas regulator ..................................................................... 12
Power Supply .................................................................................. 12
Water Temperature Control and mixing Valves................................ 12
Dishwashing machines .................................................................... 13
Closed Water Systems .................................................................... 13
Thermal Expansion .......................................................................... 13
Temperature-Pressure Relief Valve ............................................ 13-14
Contaminated Air ............................................................................. 14
Air requirements ............................................................................. 14
unconfined Space ........................................................................... 15
Confined Space ............................................................................... 15
Exhaust Fans ............................................................................................15
Louvers and grilles ...................................................................................15
VeNTINg INSTALLATIoN .............................................................. 15-19
Venting ............................................................................................. 15
multiple Heater manifold .................................................................. 16
fresh Air opening for Confined Spaces .......................................... 16
outdoor Air Through Two openings ................................................ 16
outdoor Air Through one opening .................................................. 16
outdoor Air Through Two Horizontal Ducts ..................................... 16
outdoor Air Through Two Vertical Ducts .......................................... 17
Air from other Indoor Spaces ......................................................... 17
Technical Data Venting ............................................................... 18-19