Carrier 38EN User Manual download pdf (Page 5)

HEATING A COOLING

38EN

Air-Cooled Condensing Units

THERMOSTAT SUBBASE

ARRANGEMENT B-ONE TRANSFORMER

(COOLING AND ONE-STAGE HEATING)

THERMOSTAT SUBBASE

99TZ90036I20

(COOLING AND TWO-STAGE HEATING)

*IFR and IFM are located In furnace on heating-cooling applica

tions If accessory IFR is required for cooling-only applications,

locate (IFR) in fan coil

C — Contactor (12-va)

HC — Heating Control

IFM — Indoor Fan Motor

IFR — Indoor Fan Relay

Trans — Transformer

NOTE Refer to unit wiring label for wire colors: C to G andCto Y

connections

Field Splice

________

Field Wiring

________

Factory Wiring

Table 5 — 38EN Chargemaster® Charging

Chart (AccuRater™ System)

OUTDOOR

TEMP

(F)

EVAPORATOR TEMPERATURE (F)

21 I 25 I 28 I 31 I 34 I 37 I 4045 | 48

Suction Line Temperature ^)

60 32 40 51

62 30 38 39

64 28 37 47 60

35 45 57

34 43 54

32 41 52

72 31 39 50

61 72

30 37 48 58 69

29 36

46 56

27 35

44 54 63

75ii

26 33 42

72::

32 40 50 59 68

29 37

55 63 73

53 61

70 81

42 51

59 68

78 90

49 57

65 75

39 47

55 63 72

45 53 61

70 80

51 59

67 77

100

49 57

65 75

102

48 55

104 39 46

53 61

106 45 51

59 68

108 43

49 57

110 41

55 63

112

53 61

114

Example

Fig. 5 — Control Circuit Connections

Fig. 6 — 38EN Charging Chart

(AccuRater™ System)

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book II 14 PC 101 Catalog No 563-825 Printed inUS A Form38EN-3SI Pg 5 12-84 Replaces: 38EN-2SI

Tah li^alPa

For renlacement IteniA iiao ('.ntrlar Parte

1 2 3 4 5 6

Air-Cooled Condensing Units 1

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