NTI GF 200 - Technical Specifications Table

2.3 Specications
The following table lists the specications for the appliance. Additional specications about water, gas,
electric, and air supplies (venting) appear in the Installation section.
Item GF 200
Heat
Capacity
(Input)
Natural Gas
Space Heating:
19,900 – 80,000 BTU/H
DHW Heating:
19,900 – 199,000 BTU/H
Propane Gas
Energy
Factor
UEF (for NG & LP) 0.96
EF (Canada) (for NG &
LP)
0.97
Flow Rate
(DHW)
35 °F (19 °C) Temp Rise 11.2 GPM (42 L/m)
45 °F (25 °C) Temp Rise 8.7 GPM (33 L/m)
67 °F (36 °C) Temp Rise 5.6 GPM (21 L/m)
Dimensions 17.75 in (W) x 38.0 in (H) x 40.0 in (D)
Weight 248 lbs
Installation Type Indoor
Venting Type Forced Draft Direct Vent
Ignition Electronic Ignition
Water Pressure 15 – 150 PSI
Natural Gas Supply Pressure
(from source)
See Water Heater Installation Manual (Supplied)
Propane Gas Supply Pressure
(from source)
Natural Gas Manifold Pressure
(min-max)
Propane Gas Manifold Pressure
(min-max)
Minimum Flow Rate*
0.5 GPM (1.9 L/m), < 0.01 GPM (0.04 L/m) with optional recirculation
mode.
Connection
Sizes
Cold Water Inlet
3
/
4
in sweat joint
Hot Water Outlet
3
/
4
in sweat joint
Gas Inlet
3
/
4
in NPT
Power Supply
Main Supply 120 V AC, 60 Hz
Materials
Casing Cold Rolled Carbon Steel
Heat Exchangers
Primary Heat Exchanger: Stainless Steel
Secondary Heat Exchanger: Stainless Steel
Venting
Exhaust**
See Water Heater Installation Manual (Supplied)Intake
Vent Clearances
Safety
Devices
Flame Rod, APS, Ignition Operation Detector, Water Temperature High Limit Switch, Exhaust
Temperature High Limit Sensor, Power Surge Fuse
*Energy consumption will increase when the system is congured for recirculation.
**High temperature venting material may be required. See section 3.5 Venting the appliance for details.
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