WaterFurnace Envision Low Sill - Manual (Page 37)

37
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Operating Parameters
Entering Water
Temp °F
Water Flow
gpm/ton
Cooling
Suction Pressure
psig
Discharge
Pressure psig
Superheat Subcooling
Water Temp Rise
°F
Air Temp Drop
°F DB
30
1.5 100 - 115 170 - 190 17 - 26 10 - 14 18 - 22 20 - 30
3.0 115 - 125 150 - 170 20 - 29 7 - 11 8 - 10 20 - 30
50
1.5 133 - 148 225 - 245 8 - 11 7 - 11 18 - 22 20 - 30
3.0 129 - 144 185 - 205 8 - 11 6 - 10 8 - 10 20 - 30
70
1.5 139 - 154 300 - 320 6 - 10 6 - 10 18 - 22 18 - 26
3.0 137 - 152 250 - 270 6 - 10 6 - 10 8 - 10 18 - 26
90
1.5 143 - 158 360 - 380 6 - 10 6 - 10 18 - 22 18 - 26
3.0 141 - 156 330 - 350 6 - 10 6 - 10 8 - 10 18 - 26
110
2.3 143 - 158 360 - 380 6 - 10 6 - 10 18 - 22 18 - 22
3.0 141 - 156 440 - 460 6 - 10 6 - 10 8 - 10 18 - 22
Entering Water
Temp °F
Water Flow
gpm/ton
Heating
Suction Pressure
psig
Discharge
Pressure psig
Superheat Subcooling
Water Temp Drop
°F
Air Temp Rise
°F DB
30
1.5 73 - 79 305 - 330 7 - 13 7 - 11 7 -10 20 - 26
3.0 79 - 85 315 - 345 7 - 13 7 - 11 3 - 6 20 - 26
50
1.5 103 - 109 330 - 370 7 - 13 7 - 11 8 - 11 22 - 32
3.0 115 - 130 350 - 380 7 - 13 7 - 11 4 - 7 22 - 32
70
1.5 145 - 155 375 - 410 7 - 13 7 - 11 11 - 14 28 - 38
3.0 155 - 165 415 - 435 10 - 14 7 - 11 7 - 10 35 - 45
90
1.5 170 - 185 435 - 470 11 - 18 7 - 11 8 - 11 42 - 50
3.0 174 - 190 465 - 500 11 - 18 7 - 11 8 - 11 42 - 50
110
2.3
3.0
NOTES: Cooling performance based on entering air temperatures of 80°F DB, 67°F WB. 6/20/11
Heating performance based on entering air temperature of 70°F DB.
Operating Limits
Operating Limits
Cooling Heating
(°F) (°C) (°F) (°C)
Air Limits
Min. Ambient Air 45 7.2 45 7.2
Rated Ambient Air 80 26.7 70 21.1
Max. Ambient Air 100 37.8 85 29.4
Min. Entering Air 50 10.0 40 4.4
Rated Entering Air db/wb 80.6/66.2 27/19 68 20.0
Max. Entering Air db/wb 110/83 43/28.3 80 26.7
Water Limits
Min. Entering Water 30 -1.1 20 -6.7
Normal Entering Water 50-110 10-43.3 30-70 -1.1
Max. Entering Water 120 48.9 90 32.2
NOTE: Minimum/maximum limits are only for start-up conditions, and
are meant for bringing the space up to occupancy temperature. Units
are not designed to operate at the minimum/maximum conditions on
a regular basis. The operating limits are dependant upon three primary
factors: 1) water temperature, 2) return air temperature, and 3) ambient
temperature. When any of the factors are at the minimum or maximum
levels, the other two factors must be at the normal level for proper and
reliable unit operation.