Carrier 50EQ - Manual (Page 12)

Fig. 14 — Charging Chart — Cooling,
50EQ028
3 3 41 Э a
SUCTION
3 6C
-INE TEMP
7
ERATURE
0 e
(F)
0
-i 4 10 № 22 27
SUCTION LINE TEMPERATURE (C)
Fig. 15 — Charging Chart — Cooling,
50EQ034
Table 6 — Air Quantity Limits
UNIT MINIMUM CFM MAXIMUM CFM
50EQ STANDARD AIR STANDARD AIR
024 6,800 9,000
028 8,300 12,000
034 10,080 14,000
NOTES
1 Operation below minimum limits may cause a high
pressure condition when unit is on heating cycle
2 The operation of electric resistance heaters above 47 F
when compressor heat is operational is not recom­
mended below minimum cfm's Field-adjustable ther­
mostat in unit locks out electric heat
To check system operation during heating
cycle, use correct Heating Cyele Operation Check
Chart (Fig. 16, 17, or 18). This chart indicates
whether a correct relationship exists between sys­
tem operating pressures and indoor and outdoor
entering air temperatures. If pressure and tem­
perature lines do not intersect on chart, the system
refrigerant charge may not be correet or other sys­
tem abnormalities may exist. Do not use Heating
Cycle Chart to adjust refrigerant charge.
Fig 16 — Heating Cycle Operation Chart
50EQ024
Fig. 17 — Heating Cycle Operation Chart —
50EQ028
t
t
12