Nortec GS Series - Manual (Page 96)

93 | GS Series Installation
Table 17: GS Quick Reference
Item GS 100 GS 200 GS 300 GS 400 GS 500 GS 600
Gas Pressure
Natural Gas min (in wc/mbar) 4.5/11.2
Natural Gas max (in wc/mbar) 9/22.4
Propane min (in wc/mbar) 9/22.4
Propane max (in wc/mbar) 13/32.3
Min free air opening (in/cm) 13/33 23/58 35/89 47/119 59/150 71/180
Input
Max (BTU) 140,000 280,000 420,000 560,000 700,000 840,000
Min GSTC (BTU) 45,000
Direct vent min (BTU) 60,000
Gas Piping Size (in/cm) 1/2/1.3 3/4/1.9 1/2.5 1/2.5 1.25/3.2 1.25/3.2
"BH" Vent X X X X X X
"B" Vent X X X X X X
"BH" Exhaust Piping (in/cm) 3/7.6 4/10.2 5/12.7 5/12.7 6/15.2 6/15.2
4/10.2 5/12.7 7/17.8 7/17.8 8/20.3 8/20.3
Appliance Category I or III I or III I or III I or III I or III I or III
Full Weight In (lbs/kg) 416/188 588/266 954/432 974/441 1340/607 1360/616
Empty Weight In (lbs/kg) 266/120 354/160 485/217 529/239 659/298 703/318
User level password 0335
Water consumption (25% bd)
Gallons/liters per hour 433/1639 866/3278 1300/4921 1733/6560 2166/8199 2600/9842
Tank Water Volume
Gallons/liters 18/71 29/111 58/221 55/210 84/320 81/309
Fill valve flow rates
To tank: Gallons/liters per minute 2.64/10
To float chamber: Gallons/liters
per minute
0.09/0.35
Supply water pressure
Min. (psi/kPa) 30/206
Max. (psi/kPa) 80/551
Drain rate (includes D.W.C)
Gallons/Litres per minute 5.2/20
Min drain pipe size (in/cm) 1 to 1.5 / 2.5 to 3.8 OD or larger
Power supply requirements
120 volts a/c X X X X X X
208-240 volts a/c 1PH X X X X X X
Steam Outlet size (in/cm) 1.75/4.4 3/7.6 3/7.6 4/10.2 4/10.2 4/10.2