Carrier 50HQ User Manual download pdf (Page 13)

CORRECTION FACTORS — ANTI-FREEZE

LEGEND

CORRECTION FACTORS — ENTERING AIR

CORRECTION FACTORS — NOMINAL CFM

NOTE: 400 CFM per ton is Nominal Airflow.

LEGEND

NOTES:

1. ARI/ISO/ASHRAE 13256-1 uses entering air conditions of Cooling —

80.6 F db/66.2 F wb and Heating — 68 F db/59 F wb.

2. Discontinued Standards ARI 320, 325, and 330 used entering air conditions

of Cooling 80 F db/67 F wb and Heating — 70 F db (bold print for compari-

son only).

ENGLISH TO SI CONVERSIONS

ANTI-FREEZE

TYPE

SOLUTION

COOLING HEATING WPD CORRECTION

FACTOR

(EWT 30 F)

TC TSC kW TC kW

WATER 0 1.000 1.000 1.000 — — —

PROPYLENE

GLYCOL

5 0.995 0.995 1.003 0.989 0.997 1.070

15 0.9860.986 1.009 0.968 0.990 1.210

25 0.978 0.978 1.014 0.947 0.983 1.360

METHANOL

5 0.995 0.995 1.002 0.989 0.997 1.070

15 0.990 0.990 1.007 0.968 0.990 1.160

25 0.9820.982 1.012 0.949 0.984 1.220

ETHANOL

50.998 0.998 1.002 0.981 0.994 1.140

15 0.994 0.994 1.005 0.944 0.983 1.300

25 0.9860.986 1.009 0.917 0.974 1.360

ETHYLENE

GLYCOL

50.998 0.998 1.002 0.993 0.998 1.040

15 0.994 0.994 1.004 0.980 0.994 1.120

25 0.988 0.988 1.008 0.966 0.990 1.200

EWT — Entering Water Temperature

kW — Total Power (Kilowatts)

TC — Total Capacity (MBtuh)

TSC — Total Sensible Capacity (MBtuh)

WPD — Water-side Pressure Drop

EAT

WB (F)

COOLING HEATING

Sensible Cooling Capacity Entering DB (F)

kW THR

EAT

DB (F)

TC kW THA

60 65 70 75 80 80.6 859095

50 0.7335 0.883********0.978 0.783 50 1.044 0.834 1.099

55 0.8063 0.676 0.8841.112******0.9840.842 55 1.034 0.872 1.076

60 0.8830 — 0.673 0.882 1.092 * * * * * 0.990 0.930 60 1.024 0.910 1.053

65 0.9774 — — 0.668 0.876 1.089 1.114 1.295 * * 0.997 0.998 65 1.012 0.955 1.027

66.2 0.9851 — — 0.618 0.824 1.036 1.061 1.245 * * 0.999 0.988 68 1.005 0.9821.011

67 1.0000 ——0.584 0.790 1.000 1.026 1.212 * * 1.000 1.000 70 1.000 1.000 1.000

70 1.0426 — — — 0.661 0.869 0.894 1.081 1.292 * 1.004 1.042 75

0.989 1.047 0.974

75 1.1386 — — — — 0.652 0.652 0.859 1.069 1.284 1.012 1.113 80 0.974 1.101 0.942

AIRFLOW COOLING HEATING

CFM

Nominal Per Ton

% of

Nominal

TC TSC kW THR TC kW THA

300 75% 0.957 0.869 0.951 0.955 0.970 1.054 0.964

325 81%

0.966 0.901 0.963 0.966 0.978 1.035 0.975

350 88% 0.976 0.933 0.974 0.976 0.9861.0170.987

375 94% 0.988 0.966 0.9870.988 0.993 1.009 0.993

400 100% 1.000 1.000 1.000 1.000 1.000 1.000 1.000

425 106% 1.006 1.029 1.014 1.008 1.006 0.999 1.005

450 113% 1.012 1.058 1.027 1.015 1.012 0.997 1.010

475 119% 1.017 1.080 1.051 1.024 1.017 0.996 1.014

500 125% 1.022 1.103 1.074 1.033 1.022 0.996 1.019

AHRI — Air Conditioning, Heating, and Refrigeration Institute

ASHRAE — American Society of Heating, Refrigeration and

Air Conditioning Engineers

db — Dry Bulb

EAT — Entering-Air Temperature (F)

ISO — International Organization for Standardization

kW — Total Power Input (kilowatts)

TC — Total Capacity

THA — Total Heat of Absorption

THR — Total Heat of Rejection

TSC — Total Sensible Capacity

wb — Wet Bulb

AIRFLOW Airflow (L/s) = CFM x 0.472

WATER FLOW Water Flow (L/s) = gpm x 0.0631

EXTERNAL STATIC PRESSURE (ESP) ESP (Pa) = ESP (in. wg) x 249

WATER PRESSURE DROP (PD) PD (kPa) = PD (ft of hd) x 2.99

Performance data

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 33 34

Comments to this Manuals

No comments

Carrier 50HQ User Manual Page 13

Comments to this Manuals

Related products and manuals for Heat pumps Carrier 50HQ