Product Description
The Navien NWP500-50 is a hybrid heat pump water heater that uses 208-240 V AC, 60 Hz single-phase power and features a nominal 50 gallon storage capacity. The unit combines a stainless steel tank with aluminum condenser coils, a UEF of 3.85, built-in Wi-Fi, EcoPort CTA-2045 demand response readiness, and top/side water connection options for indoor installation and ducting.
Nominal 50 gal capacity with 45.2 gal rated storage volume and 65 gal first hour rating
Input voltage 208-240 V AC, 60 Hz; MCA 25.9A (208 V) / 28.8A (240 V); 30 A circuit breaker recommended
Stainless steel tank, aluminum condenser coils, R-134a refrigerant (28.2 oz), quiet operation <45 dBA
Product Highlights
High-efficiency hybrid heat pump water heater with Wi-Fi, EcoPort demand response, ENERGY STAR certification, and top/side connections.
Product Information
Standard Information
Brand : NAVIEN
Manufacturer Part Number : NWP500-50
Technical Specifications
Manufacturer Part Number
NWP500-50
Alternate Part Number
NWP500S050AUMB
Nominal Capacity
50 gal (189.27 L)
Rated Storage Volume
45.2 gal (171.1 L)
First Hour Rating
65 gal (246.05 L)
AHRI Certification Number
217,191,097
Dimensions
21.7" W x 63.0" H (55.1 cm W x 160.0 cm H)
Net Weight
181 lbs (82.1 kg)
Installation Location
Indoor
Water Pressure Range
15-150 PSI (1.05-10.55 kg/cm2)
Cold Water Inlet
3/4" NPT
Hot Water Outlet
3/4" NPT
T&P Relief Valve
3/4" NPT
Condensate Drain
3/4" NPT
Element Thread
1" NPSM (11-1/2 threads per inch)
Casing Material
Cold rolled carbon steel
Storage Tank Material
Stainless steel
Condenser Material
Aluminum coil
Safety Devices
Condensate level sensor; ECO (Energy Cut Off); Temperature and Pressure relief valve
Input Voltage
208-240 V AC, 60 Hz, 1 Phase
MCA
208 V (25.9 A) / 240 V (28.8 A)
Recommended Circuit Breaker
30 Amps
Wire Size
Up to 10 AWG - Suitable for 167 °F (75 °C)
Compressor RLA (208 V)
11.6 Amps (note: RLA value listed originally as 2 A appears incorrect; see note)
Fan Motor FLA
0.22 Amps (208 V)
Upper Heating Element (208 V)
3,755 W
Lower Heating Element (208 V)
3,755 W
Upper Heating Element (240 V)
5,000 W
Lower Heating Element (240 V)
5,000 W
Refrigerant Charge
28.2 oz (800 g)
Built-in Features
Wi-Fi; EcoPort CTA-2045 demand response readiness; multi-line LED control panel
Operating Modes
Hybrid / electric
Air Intake/Exhaust Flanges
Includes flanges for ducting
Energy Certification
ENERGY STAR certified; designed to meet NEEA AWHS Tier 4 requirements