Carrier AquaForce 30XV140 Controls, Start-Up, Operation, Service And Troubleshooting Instructions page 45

Table 30 — 30XV Minimum and Maximum Evaporator Flow Rates
ITEM
Evaporator Leaving Water Temperature*
Evaporator Entering Water Temperature†
30XV Unit Size Tier
Std
140 Mid
High
Std
Mid
160
High
Std
Mid
180
High
Std
Mid
200
High
Std
Mid
225
High
Std
Mid
250
High
Std
Mid
275
High
Std
Mid
300
High
Std
325 Mid
High
*For applications requiring evaporator leaving water temperature
operation at less than 40 F (4.4 C), the units require the use of anti-
freeze. Contact your local Carrier representative for more information.
†For applications requiring evaporator entering water temperature
operation at less than 45 F (7.2 C), contact your local Carrier repre-
sentative for unit selection using the Carrier electronic catalog.
Number of
Evaporator Passes
(See Note 4)
Standard 2
Standard 2
Standard 2
Standard 2
Standard 2
Standard 2
Standard 2
Standard 2
Standard 2
MINIMUM
40 F (4.4 C)
45 F (7.2 C)
Minimum Flow Rate Maximum Flow Rate
(gpm) (L/s) (gpm)
170.4 10.8 681.6
193.2 12.2 772.8
204 12.9
236.4 14.9 945.6
266.4 16.8 1065.6
308.4 19.5 1233.6
327.6 20.7 1310.4
349.2 22.0 1396.8
379.2 23.9 1516.8
NOTES:
1. The 30XV units will start and pull down with loop temperatures
up to 95 F (35 C).
2. Nominal flow rates required at AHRI (Air-Conditioning, Heating
and Refrigeration Institute) conditions: 44 F (7 C) leaving fluid
temperature, 54 F (12 C) entering water temperature, 95 F
(35 C) ambient. Fouling factor 0.00010 ft
m 2 -K/kW).
3. To obtain proper temperature control, evaporator loop fluid vol-
ume must be at least 3 gal/ton (3.23 L/kW) of chiller nominal
capacity for air conditioning and at least 6 gal/ton (6.5 L/kW) for
process applications or systems that must operate in low ambi-
ent temperatures (below 32 F [0° C]).
4. For One Pass evaporators, apply a multiplier of 2 to the above
flow rates.
45
MAXIMUM NORMAL
60 F (15 C)
70 F (21.1 C)
Nominal Flow Rate
(L/s) (gpm)
43.0 340.8
48.8 386.4
816 51.5 408
59.7 472.8
67.2 532.8
77.8 616.8
82.7 655.2
88.1 698.4
95.7 758.4
2
-hr-F/Btu (0.000018
—
—
(L/s)
21.5
24.4
25.7
29.8
33.6
38.9
41.3
44.1
47.8