4
Eternal Hybrid Water Heater Technical Specications
Model Name
GU145 / GU145(S) GU195(S) / GU195(M)
Thermal Efciency (*) / Energy Factor
98% NG / 99% LP / 0.96 Energy Factor
Installation Indoor / Outdoor / Wall Hung / Floor Standing
Flue System Sealed Combustion Direct Vent / Power Vent Convertible
Vent Run 3" PVC / 2" PVC Up to 100ft, 6 Elbows Max, 5ft Deduction Per Elbow / Up to 35ft,
3 Elbows Max, 5ft Deduction Per Elbow
Condensate Discharge Low Fire / Med Fire / High Fire 0.5GPH / 1.1GPH / 1.75GPH
Condensate pH Level 4 pH
Gas Type Pre-set for NG / LP Conversion Kit Included
Unit Connections Gas and Water 3/4" Female NPT
Electricity Dedicated 120VAC, 60Hz w/3 Pronged Power Cord
Gas Input Rate Min / Max 31,000 BTU/Hr / 145,000 BTU/Hr 31,000 BTU/Hr / 199,000 BTU/Hr
Gas Supply Pressure NG / LP 3.5" WC to 10.5" WC / 8" WC to 14" WC
Manifold Pressure
(minimum)
Time engineering
NG (-) 0.02" W.C. NG (-) 0.02" W.C.
PG (
-
) 0.02" W.C. PG (-) 0.02" W.C.
Honeywell
NG (-) 0.01" W.C. NG (-) 0.01" W.C.
PG (
-
) 0.01" W.C. PG (-) 0.01" W.C.
Ignition System Direct Electronic Ignition w/Automatic Flame Sensing
Burner System Single Orice Premixed Fuel Injection Metal Fiber Infrared
Gas Valve System Dual Stage Negative Pressure Full Modulation Air Ratio
Internal Piping Material Stainless Steel
Reserve Tank 2 Gallons
Electrical Consumption Standby 8W, Max 45W Standby 8W, Max 85W
Maximum Noise Level 40dB (a) 50dB (a)
Remote Controller Up to 3 kits
Multi Unit Capable Up to 2 in manifold, No Built - In MCU / M Option - MCU up to 8 Units
GPM Capacity Range 0.1 to 14.5 GPM 0.1 to 19.5 GPM
Temperature Sensing Tank, Cold Inlet, Hot Outlet, Air Thermistors
Temperature Control
Simulation Feed Forward and Feed Back, Computer Controlled Mixing Valve
Flow Sensing Dual Flow Sensors w/Built-in GPM Monitor
Temperature Settings Range 100°F to 180°F in 5°F Steps, Factory Limited to 140°F
Unit Dimensions (WxHxD) 16.9" x 29.1" x 13.8"
Unit Weight 90Ibs / M Option - 91.5Ibs
Safety Devices T&P Valve, Flame Rod, Thermal Fuse(306°F), Remaining Flame
Detection, Fan RPM Check, Freeze Protection(-40°F), Vent Blockage
Detection, Thermostat Switches(167°F / 203°F), Gas Valve Current
Leak Detection, Ignition Prevention, Dipswitch Temperature Lock, GFCI
w/2 x 5A Fuses.
*
2"PVC Cannot be used at elevations above 4,000ft.
GU145S and GU195S are for single or dual unit applications with no multi control unit. The GU195M is for
multiple unit applications only and cannot be used for single unit applications.
*
Maximum manifold pressure is indicated on the rating label on right side of the unit.
*
Independent DOE tested.