Rheem GT-199PV - Manual (Page 3)

COMMERCIAL TANKLESS SERIES
MAXIMUM HOT WATER FLOW RATE AND TEMPERATURE RISE
Temp. Rise (°F) 35 45 50 60 70 77 90 100 110 120 130 140
Water Flow (GPM) 8.5 7.4 6.6 5.5 4.7 4.3 3.7 3.3 3.0 2.8 2.6 2.4
CLEARANCE TO
COMBUSTIBLES
(inches)
MODEL
NUMBER
SIDE REAR
GT-199PV 1/2 0 12
GT-199X 1/2 0 12
GT-199DV 1/2 0 12
Minimum flow rate required to initiate heating cycle .66 gpm.
Above estimates are for sizing purposes only.
FRONT
TOP &
BOTTOM
RHEEM-RUUD GT-199 MANIFOLD INSTALLATIONS
TEMP. FLOW RATE (GPM)
RISE (°F) 1 UNIT 2 UNITS 5 UNITS 10 UNITS 15 UNITS 20 UNITS
140 2.4 4.7 11.9 23.7 35.6 47.4
130 2.6 5.1 12.8 25.5 38.3 51.1
120 2.8 5.5 13.8 27.7 41.5 55.3
110 3.0 6.0 15.1 30.2 45.3 60.3
100 3.3 6.6 16.6 33.2 49.8 66.4
90 3.7 7.4 18.4 36.9 55.3 73.7
80 4.1 8.3 20.7 41.5 62.2 83.0
77 4.3 8.6 21.5 43.1 64.6 86.2
70 4.7 9.5 23.7 47.4 71.1 94.8
60 5.5 11.1 27.7 55.3 83.0 110.6
50 6.6 13.3 33.2 66.4 99.6 132.7
45 7.4 14.7 36.9 73.7 110.6 147.5
35 8.5 17.0 42.5 85.0 127.5 170.0
Water Heater Flow Rate Curves
0
1
2
3
4
5
6
7
8
9
10 15 20 25 30 35 40 45 50 55 60 70 80 90 100 120 140
Delta-T
G
PM
Max Flow