Noritz NRCP1112-DV User manual

Installation Manual
CONDENSING TANKLESS GAS WATER HEATER
WARNING
–Donotstoreorusegasolineorotherinammablevaporsandliquidsinthevicinityofthisoranyother
appliance.
– WHAT TO DO IF YOU SMELL GAS
 •Donottrytolightanyappliance.
 •Donottouchanyelectricalswitch;donotuseanyphoneinyourbuilding.
 •Immediatelycallyourgassupplierfromaneighbor’sphone.Followthegassupplier’sinstructions.
 •Ifyoucannotreachyourgassupplier,calltheredepartment.
–Installationandservicemustbeperformedbyaqualiedinstaller,serviceagencyorthegassupplier.
Iftheinformationintheseinstructionsisnotfollowedexactly,areorexplosionmayresult,
causingpropertydamage,personalinjury,ordeath.
ThankyouforpurchasingthisNoritzTanklessGasWaterHeater.
Beforeusing,please:
Readthisguidecompletelyforoperationinstructions.
Completelylloutthewarrantyregistrationcard(includedseparately)andmailthedetachableportiontoNoritz
AmericaCorporation.Keepthisguide(andtheremainderofthewarrantyregistrationcard)where
itcanbefoundwhenevernecessary.
Installationmustconformwithlocalcodes,orintheabsenceoflocalcodes,theNationalFuelGasCode,ANSI
Z223.1/NFPA54-latesteditionand/orCSAB149.1,NaturalGasandPropaneInstallationCode(NSCNGPIC).
NoritzAmericareservestherighttodiscontinue,orchangeatanytime,thedesignsand/orspecicationsofits
productswithoutnotice.
NRCP1112-DV / NRCP982-DV (Eco TOUGH)
•NaturalGas(NG) /LiquidPropaneGas(LP)
Models
Rev.03/16
c

2
Chapter1 ProductAccessories 1-1 Included Accessories 3
1-2 Optional Accessories 3
Chapter2 ProductSpecications 2-1 Specications 4
2-2 Dimensions & Connections 5
Chapter3 SafetyRequirements 3-1 Safety Precautions 6
3-2 Before Installation 7
3-3 Choosing Installation Site 8
3-4 High Elevation Installations 9
3-5 Installation Clearance 10
Chapter4 Installation 4-1 Securing to the wall 13
4-2 Vent Pipe Installation 14
4-3 Gas Piping 20
4-4 Water Piping 23
4-5 Condensate Piping 25
4-6 Plumbing Application 26
4-7 Electrical Wiring 30
4-8 Setting the Control Panel 31
(Clock Adjustment & Recirculation Timer Setting, High Elevation Setting)
Chapter5 Maintenance 5-1 Maintenance 39
5-2 Final Check List 41
Memo 42
4-9 Quick Connect Multi System Installation 35
4-10 Common Vent 37

3
1-1. Included Accessories The following accessories are included with the unit. Check for any missing
items before starting installation.
1-2. Optional Accessories The accessories listed below are not included with the unit, but may be
necessary for installation.
Chapter1.–ProductAccessories
Part Shape Q’ty
WaterHeater 1
Anchors/
Wallmounting
bracket/
EmergencyKit
1
each
Part Shape Q’ty
PVCTerminal
VK3-H-PVC 1
VK3-PVC-VAS 1
PVCTerminal
PRC-1 1
SVConversionKit
(#SV-CK-3)
•90Elbow
(WithInletScreen)
1
Neutralizer
(NC-1)
(For1waterheater)
1
Part Shape Q’ty
Owner’sGuide,
WarrantyCard,
InstallationManual,
TechnicalDataSheet,
QuickInstallationGuide,
PartList
1
each
Ventscreenswith
Finishing
(3")
2
Part Shape Q’ty
Horizontal
Hood
Termination
PVT-HL
1
each
Isolation
Valves
(includes
pressure
reliefvalve)
1
each
Ventscreens
withFinishing
(2")
(Aftermarket)
2
Quick
Connect
Cord
QC-NRCP
1

4
Chapter2.–ProductSpecications Specications
Model Name NRCP1112-DV NRCP982-DV
Gas Input Rate
MAX 199,000 Btu/h 180,000 Btu/h
MIN 18,000 Btu/h 18,000 Btu/h
High Altitude (2,500~4,500ft) 180,000 Btu/h 180,000 Btu/h
Hot Water Capacity
35°F Rise 11.1 Gal 10.1 Gal
45°F Rise 8.7 Gal 7.8 Gal
77°F Rise 5.1 Gal 4.6 Gal
Installation Indoor Wall Hung
Flue System Sealed Combustion Direct Vent, Single Vent
Max Vent Run 2″(50ft) / 3″(100ft) Schedule 40 PVC, CPVC, PP
Orice Size NG (Gas / Needle) 0.381″(9.7mm) / 0.389″(9.9mm)
LP (Gas / Needle) 0.307″(7.8mm) / 0.315″(8.0mm)
Gas Supply Pressure NG 3.5˝ WC to 10.5˝ WC
LP 8.0˝ WC to 14˝ WC
Manifold Pressure
Gas Type NG LP NG LP
Low Fire 2″ VENT -0.03 WC -0.06 WC -0.03 WC -0.06 WC
3″ VENT -0.03 WC -0.06 WC -0.03 WC -0.06 WC
High Fire 2″ VENT -0.04 WC -0.07 WC -0.04 WC -0.07 WC
3″ VENT -0.04 WC -0.07 WC -0.04 WC -0.07 WC
Power Supply
Main Supply 120V 60Hz
Maximum
Power Consumption 172W(82W+90W_PUMP)
Ignition System Direct Electronic Ignition / Automatic Flame Sensing
Burner System Premixed Metal Fiber Burner
Gas Valve System Air ratio valve
Minimum Flow Activation Flow 0.5 GPM
Internal Pipe Material STS 304, Copper Tubing
Dimensions W17.3″ – H28.7″ – D14.8″
Weight 85 lbs
Water Holding Capacity Under 2 Gallon
Control Panel / Main Controller P-950C / NGTH-9700C
Water Pressure MAX Hot water 150 psi
MIN 15 psi
Materials Casing Cold Rolled Carbon Steel
Heat Exchanger Heat Exchanger : STS 304
Safety Devices
Flame Sensor, Overheat Cut Off Limit Switch ,
Gas Leak Detector sensor, Water Leak Detector Sensor
Exhaust Temperature Sensor,
Water Temperature Sensor
2-1. SpecicationsSpecications may be changed without prior notice.The capacity may differ slightly,
depending on the water pressure, water supply, piping conditions, and water temperature.

5
Dimensions & Connections
Chapter2.–ProductSpecications
Description Size
AExhaust 3"
BAir Intake 3"
CHot Water 3/4"
DCondensate 1/2"
ERecirculation Return 3/4"
FCold Water 3/4"
GGas 3/4"
NO Name of Component
1
Exhaust
2
Igniter
3
Ignition Plug
4
Burner High Limit Switch
5
Primary Heat Exchanger
6
Secondary Heat Exchanger
7
Control Panel
8
Water Mixing Valve
9
Recirculation Pump
10
Hot Water Connection
11
Condensate Trap
12
Recirculation Return Connection with Filter
13
Computer Board
14
Cold Water Connection
15
Cold Water Filter
16
Gas Connection
17
Manual Power Switch
18
Flow Sensor
19
Water Control Valve
20
Air Pressure Switch
21
Flame Sensor
22
Gas Valve
23
AGM (Air Gas Mixer)
24
Fan Motor
25
Internal Air Intake Filter
26
Air Intake
3
4
5
6
7
8
9
10 11
12
13
14
16
15
17
19
18
20
22
21
23
24
25
26
2
1
2-2. Dimensions & Connections
28.7"[730mm] 4.0"[101mm]
11.5"[292mm]
4.6"[117mm]
6.1"[156mm] 5.6"[142mm]
2.4"[60mm]
6.8"[173mm]
2.6"[67mm]
3.2"[81mm]
9.8"[250mm]
13.6"[346mm]