WaterFurnace Envision Hydronic (NDW) - Manual (Page 28)

28
NDW INSTALLATION MANUAL
Operating Parameters
Load and Source Pressure Drop
Model gpm
Pressure Drop (psi)
30°F 50°F 70°F 90°F 110°F
100
15 1.0 0.8 0.5 0.3 0.1
23 2.5 2.2 2.0 1.7 1.3
30 3.8 3.6 3.3 3.1 2.4
34 4.5 4.3 4.0 3.8 3.0
120
18 1.6 1.3 1.1 0.8 0.6
28 3.4 3.2 2.9 2.7 2.1
36 4.9 4.7 4.4 4.2 3.3
40 5.6 5.4 5.1 4.9 3.9
150
21 2.1 1.9 1.6 1.4 1.0
32 4.2 3.9 3.7 3.4 2.7
42 6.0 5.8 5.5 5.3 4.2
50 7.5 7.3 7.0 6.8 5.5
180
24 2.7 2.4 2.2 1.9 1.5
36 4.9 4.7 4.4 4.2 3.3
48 7.1 6.9 6.6 6.4 5.1
60 9.3 9.1 8.8 8.6 7.0
3/9/09
Heating Mode
Entering
Load Temp (°F)
Entering
Source Temp (°F)
Suction
Pressure (psig)
Discharge
Pressure (psig)
Superheat
(°F)
Subcooling
(°F)
60
30 75-100 200-215 10-12 10-13
50 100-125 200-215 12-14 8-12
70 125-150 215-230 14-18 8-12
90 150-165 230-255 25-30 8-12
80
30 75-100 285-300 10-12 10-13
50 100-125 300-315 12-14 8-12
70 125-150 315-330 14-18 8-12
90 150-165 330-345 25-30 8-12
100
30 85-110 365-380 10-12 7-11
50 110-135 385-400 12-14 7-11
70 135-165 400-415 14-18 3-7
120
50 110-135 485-500 12-14 7-11
70 135-165 500-515 14-18 3-7
NOTE: Operating data based on normal conditions with 3 gpm/ton for the load and source. 2/15/10
Cooling Mode
Entering
Load Temp (°F)
Entering
Source Temp (°F)
Suction
Pressure (psig)
Discharge
Pressure (psig)
Superheat
(°F)
Subcooling
(°F)
50
30 80-90 140-175 15-20 3-6
50 90-100 200-235 11-15 6-9
70 100-110 250-285 11-15 9-12
90 100-120 330-365 8-12 12-14
110 110-130 430-465 8-12 14-19
70
30 80-90 150-185 15-20 3-6
50 90-100 210-245 11-15 6-9
70 100-110 260-295 11-15 9-12
90 110-120 340-375 8-12 12-14
110 110-140 440-485 8-12 14-19
90
30 80-90 150-185 15-20 3-6
50 90-100 210-245 11-15 6-9
70 100-110 260-295 11-15 9-12
90 110-120 340-375 8-12 12-14
110
30 90-100 160-195 40-45 3-6
50 110-130 220-255 30-40 6-9
NOTE: Operating data based on normal conditions with 3 gpm/ton for the load and source. 2/15/10