Gebruiksaanwijzing /service van het product HCS van de fabrikant Heatcraft Refrigeration Products
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Air Handlers T ech Bulletin F or Air Conditioning , Heating and V entilation A v ailable in Bohn™, Climate Contr ol™, Chandler™ & Larkin™ Bulletin AH-TB January 2011 (Replaces AH-91C) Mode.
2 Quick Cues for the v e cabinet styles: S = SHORT in model HCS L = LONG in model HCL V = VERTICAL in model VCS HD = HEA TING DUTY in model HD VCS MODELS 03 - 41 11 Standard Models Capacities F rom.
3 Nomenclature HCL 0 6 F C Cabinet style Fan T ype: HCS — (S for Short) Insulated fan section with motor FC - F or ward curved fans, available base and access door(s), horizontally adjacen t (same with all cabinet styles, sizes 3 thru 41 elevation) with insulated short depth coil section with drain pan.
4 Air Foil Fans Forward Curved F ans Motor Mount Heatcraft puts the motor inside the fan section cabinet. It is mounted on a heavy gauge steel slide rail base. There are se veral advantages with internal motor location. It eliminates the need for a bulk y belt guard.
5 W ater Coils A wide range of choices leads to the best coil selection for each particular job . Select water cooling coils from 4, 5, 6, or 8 ro w coil depth options. Select water heating coils from 1, 2, or 3 ro w coil depth options. All water coils offer fiv e fin densities (6, 8, 10, 12, or 14 FPI).
6 1. T otal KW Needed Approximate KW = 2. Number Of Steps Recommended Rule of thumb for calculating the recommended number of steps required. Use Step A or B below , whiche ver is higher . A. Number of Steps = (Based on approx. 10°F . temp. rise per step) B.
7 1. Automatic thermal cutout 2. Heat limiters 3. Air flo w switch The standard electric heater section construction T ypical options for the electric heater includes: section are: Maximum KW per contactor and per fuse block (at least one contactor is required per step of heating): Notes: 1.
8 Accessories Face and Bypass Dampers Face And Bypass Dampers For damper applications, choose either the internal face and bypass section or the external face and bypass section. If used with a large coil the damper section must be the e xternal face and bypass damper type.
9 Flat and High Capacity Filter Sections- All Unit Sizes: (Dimensions, Page 29 to 37) High Ef feciency Filter Sections- All Unit Sizes: (Dimensions, Page 29 to 37 ) Auxilary Sections- All unit Sizes: .
10 * The percentage means the belts can handle an e xtra 20% or 50% BHP . A vailable on: A v ailable on: Accessories for F an and Coil Sections Fan Section Accessory: Forward curv ed blo wer for total static of 3.5" to 6" ...................
11 Air Handler Selection 1. Air handler selections v ary with each application. Use the index belo w to find Heatcraft Products air handler performance tables for: • Standard comfort cooling (eithe.
Selection Procedure: 12 1. Which air handler for cooling performance? Look at inde x of air handler performance on page 11. Find that tables 6 through 9 gi ve chilled w ater performance.
13 T able 1 Heating and Cooling Performance for Selected Coils At 500 FPM (2.54 m/s) and 10 FPI. See notes for coil descriptions and rating conditions.
14 SST = Saturated Suction T emperature All coils ha ve single refrigerant distrib utors unless noted as belo w: MBH = BTU per Hour in Thousands ^ These selections require two circuits. Sens. = Sensible Capacity ^^ These selections require three circuits.
15 SST = Saturated Suction T emperature All coils hav e single refrigerant distributors unless noted as belo w: MBH = BTU per Hour in Thousands ^ These selections require two circuits. Sens. = Sensible Capacity ^^ These selections require three circuits.
16 CFM Coil 42°F . Entering W ater 44°F . Entering W ater 45°F . Entering W ater Unit Std F ace MBH MBH MBH Size Air Area T O T AL SENS GPM PD TO T AL SENS GPM PD TO T AL SENS GPM PD 03 1565 3.13 51 37 10.2 2.4 46 35 9.1 1.9 43 34 8.6 1.7 06 2880 5.
17 GPM = Gallons per minute PD = W ater pressure drop in feet of water ^ These selections ha ve tw o fluid circuits. All the other MBH = BTU per Hour in Thousands selections have a single fluid circuit.
18 T able 10 Heating 0°F . Air* Heating, W ater 1/2" tube, entering air at 0°F . 1/2" tube, hot water , heating capacities 10 FPI*, large coils, 500 FPM* T able 11 Heating 0°F . Air* Heating, W ater And 5/8" tube, entering air at 0°F .
19 W ater Heating Coils Steam Coils^^ CFM Face 180°F . Entering W ater 200°F . Entering W ater CFM One T wo Unit Std Area One Row T wo Ro w One Row T wo Row Std Row Row Size Air Sq. Ft. MBH GPM PD MBH GPM PD MBH GPM PD MBH GPM PD Air MBH MBH 03 1500 3.
20 Heat Reclaim Coil Selection Example: Select reclaim coil for Size 26 air handler at 13280 CFM, 344 MBH reclaimed at 45°F . T emperature Difference. A. Change the application’ s requirement at application’ s TD to adjusted requirement at 50°F .
21 ENT AIR T able 18: Capacity Correction Factors* T o Coil Performance Of 67°F Wb And 40°F Evaporating Ent Air WB Refrigerant Ev aporating T emperature °F . T emp. °F . 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 60 0.820 0.794 0.768 0.740 0.
22 * Note: correction factor = (enthalpy of air temperature - enthalp y of water temperature) in BTU /LB di vided by 13.97. Capacity Correction Factors* T o Coil Performance Of 67°F . Wb Air And 45 Entering W ater Ent Air WB Entering W ater T emperature °F .
23 FPM, T ype A Coils (1/2" DIA.) FPM, T ype 5 Coils (5/8" DIA.) Rows FPI 400 500 600 650 700 400 500 600 650 700 6 11.2 12.7 14.0 14.6 15.2 15.1 17.0 18.5 19.3 20.0 8 14.2 16.0 17.6 18.3 19.0 18.8 20.9 22.8 23.7 24.5 1 10 17.1 19.2 21.0 21.
24 Fan Performance Size 03 9" Forward Curved F an CFM Coil T otal Static Pressure - Inches Of W ater Std. V el. 0.50 1.00 1.25 1.50 1.75 2.00 2.25 2.50 Air FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 1200 383 848 0.23 1141 0.
25 Size 10 Size 10 Fan Performance Size 08 15" Forward Curved Fan CFM Coil T otal Static Pressure - Inches Of W ater Std. V el. 0.50 1.00 1.25 1.50 1.75 2.00 2.25 2.50 Air FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 2700 346 510 0.
26 Size 14 and Size 18 Size 12 Maximum ODP Motor Frame Size for Models 14 & 18 — 254 T Medium Pressure Fan Must Be Used Coil Face V elocity is for a Large Cooling Coil, T ype A (1/2" Tube D.
27 Fan Performance Size 34 25" Forward Curved F an CFM Coil T otal Static Pressure - Inches Of W ater Std. V el. 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 Air FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 9000 267 680 5.30 744 6.
28 Maximum ODP Motor Frame Size for Models 41 — 324 T Fan Performance Size 41 30" Forward Curved Fan CFM Coil T otal Static Pressure - Inches Of W ater Std. V el. 0.50 1.00 1.25 1.50 1.75 2.00 2.25 2.50 Air FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 17000 418 265 3.
29 22" Section accommodates 2" prefilter and up to an additional 12" of high efficienc y final filter 28" Section accommodates 2" prefilter and up to an additional 21&quo.
30 Sizes 03 - 18 Sizes 20 - 41 Accessory Flange Pattern Sizes 50 - 75 Dimensions Size A B C D 50 117 3/4 74 3/4 4 7/8 7 3/8 65 133 3/4 82 3/4 6 7/8 5 3/8 75 133 3/4 94 3/4 6 7/8 5 3/8 Notes - Sizes 03 Through 75: Accessory hole patterns apply to both the inlet and outlet of all the following sections: Coil sections.
31 Dimensions Model VCS Sizes 03 - 41 FC For All Unit Sizes R** W 22" 6 28" 8 44" ** See page 29 for high efficiency filter section height and width. Arrangements A vailable: Sizes 03 through 18 — Arrangements 1, 2, 3, 4, 5, 6.^^ Sizes 20 through 41 — Arrangements 2, 3, 4, 5.
32 A B C D E F* G H* J^ K L Unit air handler air handler air handler depth fan section fan outlet fan outlet fan outlet fan outlet discharge external internal Size width height‘ HCS cabinet HCL cabi.
33 Models HCS and HCL Sizes 50 - 75 AF For All Unit Sizes R** W 22" 6 28" 8 44" ** See page 29 for high efficiency filter section height and width. Dimensions Notes: Motor and connection locations (R.H. or L.H.) determined when facing the front of the unit, with the air blowing through the coil and into observ er’ s face.
34 Models HD Sizes 03 - 41 FC Arrangements A vailable: ** See page 29 for high efficiency filter section height and width. Sizes 03 through 18 — Arrangements 1, 2, 3, 4.
35 MODELS HD Sizes 50 - 65 AF T Dimensions Notes: Motor and connection locations (R.H. or L.H.) For All Units Sizes determined when facing the front of the unit, with the T R** W air blowing through the coil and into observ er’ s face. Floor or platform mounting only .
36 A* C D F L N P air handler air handler air handler inter- face and bypass dampers high Mixbox UNIT centers overall edge to edge depth extreme center to center depth mediate section, overall depth c.
37 All dimensions are in inches. Mixbox Section Dimensions Models HD Sizes 03 - 65 Mounting Locations For V ibration Isolators For All Unit Sizes Al l mounting holes are : 5/8 inch diameter .
38 Models Models Models HCS - HCL- VCS HCS - HCL HCS - HCL - VCS A i r F l o w Dimensions Order either rubber in shear (RIS) or 1" deflection spring isolators as accessories.
39 T A= Throw a way type filters AF= Airfoil Fan FC= Forward Curv ed fan Double wall construction add 45% to fan & Coil section or accessory Net W eights and Metal Gauges Air Handler Component Un.
40 Face Areas- Air Pressure Drops, Dry Coils Face Area of Coils, And Filters ( Used to Compute V elocity for Air Pressure Drop) Face Area Air Handler Unit Size Square Feet 03 06 08 10 12 14 18 20 26 34 41 50 65 75 Steam coils: Large T ype 5 Coils 2.75 5.
41 Air Pressure Drops- Cabinets, Filters, W et Coils Cabinet And Filter Air Pressure Drop Air Pressure Drop - inches of w ater Air V elocity^ - Feet per minute Component 200 250 300 350 400 450 500 550 600 Cabinet: V Style Cabinet^^ — — — .10 .13 .
42 ^ The steam coils in models 65 and 75 are not type 5. They are type 8 coils with 1" diameter tubes on 3" centers. * The CFM range for cooling and heating starts at a low of about 400 fpm through small coil . The maximum CFM for cooling is at no more than 550 fpm through a large coil.
43 ^ The steam coils in models 65 and 75 are not type 5. They are type 8 coils with 1" diameter tubes on 3" centers. * The CFM range for cooling and heating starts at a low of about 400 fpm through small coil. The maximum CFM for cooling is at no more than 550 fpm through a large coil.
Heatcr aft Refrigeration Products, LL C 2175 W est Park Plac e Blvd., Stone Mountain, GA 30087 P: (800) 321-1881 • www.hea tcraftrpd.com The name behind the brands y ou trust. Mechanical Specification General Provide a air handler of sound materials construction and design.
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