Carrier 42BH User Manual

Copyright 2001 Carrier Corporation Form 42BH-3PDSatisfy All Your Design Requirements with Carrier’s Versatile 42BH Fan Coil Unit• A selection of 6 siz

10Performance data (cont)COOLING CAPACITY 42BH164-ROW — 1600 CFM6-ROW — 1600 CFM

11COOLING CAPACITY 42BH204-ROW — 2000 CFMNOTE: Arrows illustrate Step III and IV of Selection Procedure Example 1.6-ROW — 2000 CFM

12Performance data (cont)COOLING CAPACITY 42BH304-ROW — 3000 CFM6-ROW — 3000 CFM

13COOLING CAPACITY 42BH404-ROW — 4000 CFM6-ROW — 4000 CFM

14DIRECT EXPANSION (DX) BASE COOLING CAPACITIES* (MBtuh)4-ROW COIL LEGEND*Capacity based on R-22 refrigerant at 105 F liquid temperature and 10

15DIRECT EXPANSION (DX) BASE COOLING CAPACITIES* (MBtuh) (cont)6-ROW COIL LEGEND*Capacity based on R-22 refrigerant at 105 F liquid temperature an

16Performance data (cont)42BH WATER PRESSURE DROP

1742BH WATER PRESSURE DROP (cont)

18Performance data (cont)42BH WATER PRESSURE DROP (cont)

19ENTHALPY AT SATURATION42BH COMPONENT STATIC RESISTANCE (in. wg) LEGENDNOTES:1. Cooling coil values are based on 80 F DB and 67 F WB

2Motors are bolted to an adjustable platform for easy belt adjustment. Single-phase motors are resiliently mounted to reduce noise and vibration.Compl

2042BH FAN PERFORMANCE Application not available. Shaded application available in 60 Hz only.*For 50 Hz units these motor HP’s are one size larger.NOT

21HEATING CAPACITY CURVESIMPORTANTUnit 42BH standard motors are rated for a maximum ambient air temperature of 104 Fwhen fully loaded.Since these are

22Performance data (cont)HEATING CAPACITY CURVES (cont)IMPORTANTUnit 42BH standard motors are rated for a maximum ambient air temperature of 104 Fwhen

2360 Hz SINGLE-PHASE MOTORS (1750 Rpm)60 Hz THREE-PHASE MOTORS (1750 Rpm)50 Hz SINGLE-PHASE MOTORS (1425 Rpm)50 Hz THREE-PHASE MOTORS (1425 Rpm)NOTES:

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

3DimensionsUNITDIMENSIONS — INCHES QUANTITY/UNITA B C D E F G H J K L M N P Filters Blower Motor42BH0835 141/2201/2181/4109/1667/1616 81/2131/228 24 3

4Example 1: Selection for specified total coolingI Determine job requirements:Given:Total Cooling Load . . . . . . . . . . . . . . 67.0 MBtuhSensible

5Assume for this example that the selected 42BHsize 20 unit with 4-row cooling coil has a throw-away filter. Enter the 42BH Component StaticResistance

642BH COOLING CAPACITY CORRECTION FACTORSSH — Sensible Heat TH — Total HeatNOTE: Use Sensible Heat correction factors when calculating heating cap

742BH NOMINAL COOLING CAPACITIESEWT — Entering Water Temperature*Based on entering air temperature of 67 F wb, 80 F db and temperature rise of 10 degr

8Performance data (cont)COOLING CAPACITY 42BH084-ROW — 800 CFM6-ROW — 800 CFM

9COOLING CAPACITY 42BH124-ROW — 1200 CFM6-ROW — 1200 CFM