Noritz Eco TOUGH NRCP1112-DV User Manual

27
Plumbing Guidelines
Cold Water Inlet
Expansion Tank (Install
according to local code)
Air & Gas
Mixing
Primaryheat
exchanger
Secondaryheat
exchanger
Burner
Hot Water Outlet
Pressure Relief Valve
Recirculation
Pump
Reci r cu l at i on Li ne
Condensate Hose
Gas
2.ExternalRecirculationmode
Chapter4.–Installation
Therecirculationpipemustbeinstalledintheeld
inordertoapplythe‘ExternalRecirculationMode’.
Thismodeallowsthewaterheaterrecirculation
pipestobewarmedupandservingasthefreeze
protectionfunction.
Pressure Relief Valve
Air & Gas
Mixing
Primaryheat
exchanger
Secondaryheat
exchanger
Burner
Reci r cu l at i on Li ne
Expansion Tank (Install
according to local code)
Recirculation
Pump
Condensate Hose
Gas
Hot Water Outlet
Cold Water Inlet
Internalrecirculationmodecanbe
usedevenwithexternalrecirculation
pipeinstalledifuserwantstosave
energycost.
Mustsetwaterheatertointernal
recirculationmode.
When using external recirculation mode with
the built-in pump, check the following maximum
recirculation pipe lengths including ttings (3/4"
pipe is recommended):
-1/2" Pipe- 200' (60m) of equivalent length
-3/4" Pipe- 500' (150m) of equivalent length
Lengths in excess of these limits will require an
external recirculation pump.

Noritz Eco TOUGH NRCP1112-DV Specifications

General

Type	Tankless
Category	Residential
Fuel Type	Gas
Gas Type	Natural Gas
Flow Rate	Up to 11.2 GPM
Dimensions (HxWxD)	14.5 x 23.5 x 9.5 inches
Weight	43 lbs
Vent Type	Direct Vent
Warranty	12 years
Condensing	Yes
Voltage	120V
Maximum BTU Input	199, 000 BTU
Flow Rate (GPM)	11.2 GPM
GPM at 35°F Rise	11.1
Energy Factor	0.82
Venting	2-inch or 3-inch PVC/CPVC
Heat Exchanger	Stainless Steel
Temperature Range	100°F to 140°F
Vent Material	PVC/CPVC
Wi-Fi Capability	No