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HEATING t COOLING
50DP,DPE012,014
50DP016,020 Single-Package Cooling Units
Installation, Start-Up and Service Instructions
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CONTENTS |
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SAFETY CONSIDERATIONS........................... |
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INSTALLATION . . . . |
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1_10 |
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• ROOFCTO'S"" |
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• • • ' |
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ALTERNATE UNIT SUPPORT |
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P*OOTTT”'9 |
Unit................................ |
1 |
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POSITIONING |
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ROOF MOUNT |
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Fabricate Ductwork....................... |
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Q+fE c Nlake Unit Duct Connections....................... |
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c Trap Condensate Drain ................................. |
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Make Electrical Connections................. |
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!POWER SUPPLY
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CONTROL WIRING |
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Make Outdoor Air Inlet |
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Adjustments............................................................ |
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OUTDOOR" AIR "DAMPE’R........... |
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OPTIONAL ECONOMIZER |
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step 8 — Install Outdoor Air Hood......................... |
10 |
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^"FART-UP............................................................. |
10-13 |
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SERVICE.................................................................. |
14-16 |
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SAFETY CONSIDERATIONS
Installation and servicing of air conditioning |
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ment can be hazardous due to system pressure ano _ |
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trical components. Only trained and |
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personnel should install, repair or service air condì |
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equipment. |
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Untrained personnel can perform basic |
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functions of cleaning coils and filters and rep g |
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filters. All other operations should ^ |
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trained service personnel. When working on |
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tioning equipment, observe precautions »of“® ^ r>rpl |
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tags and labels attached to the unit and other sal y p |
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cautions that may apply. |
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Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for unbrazing operations. Have fire extinguishers available for all brazing operations.
A WARNING
Before performing service or maintenance operations on unit, turn off main power switch to unit. Electrical shock could cause personal injury.
INSTALLATION
Step 1 — Provide Unit Support
ROOF CURB — Assemble and install accessory roof curb in accordance with instructions shipped with this accessory. Accessory roof curb and information required to field fabricate a roof curb are shown in Fig. 1 and 2. Install insulation, cant strips, roofing and flashing as shown. Ductwork can be installed to roof curb before unit is set in place. Curb should be level. Unit leveling toler ance is ± l/16in. per linear ft in any direction. This is necessary to permit unit drain to function properly. Refer to Accessory Roof Curb Installation Instructions for additional information as required.
ALTERNATE UNIT SUPPORT — When the curb cannot be used, support unit with sleepers using unit curb support area. If sleepers cannot be used, support long sides of unit with a minimum of 3 equally spaced 4-in. x 4-in. pads on each side.
Step 2 — Rig and Place Unit — Inspect unit for transportation damage. File any claim with transporta tion agency. Do not drop unit, keep upright. Use spreader bars over unit to prevent sling or cable damage. Rollers may be used to move unit across a roof Level by using unit frame as a reference; leveling tolerance is ± 1/16 in. per linear ft in any direction. See Fig. 3 for additional information. Unit weight is shown in Table 1.
Four lifting holes are provided in ends of unit base rails as shown in Fig. 3. Refer to rigging instructions on unit.
POSITIONING — Provide clearance around and above unit for airflow, safety and service access (Fig. 4).
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
g2°k|l |4 |
PC111 |
Catalog No 565-104 |
Printed in U S A |
Form 50DP-26SI |
TabTlbl6b |
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ii.n,. Carrier Specified Parts. |
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Pgi |
7-88 |
Replaces; 50DP-25SI |
Fig. 1 — Roof Curb Details
INDOOR AIR |
INDOOR AIR |
FAN MOTOR |
FAN MOTOR |
(50PQ900I5I ) |
TRANSITION DUCT |
Fig. 2 — Side Supply/Return Curb Details
Do not install unit in an indoor location. Do not locate unit air inlets near exhaust vents or other sources of contaminated air.
Although unit is weatherproof, guard against water from higher level runoff and overhangs.
ROOF MOUNT — Check building codes for weight dis tribution requirements. Unit weight is shown in Table 1.
NOTE: Rig by inserting hooks into unit base rails as shown. Main |
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tain a distance of |
120 m. (3048 mm) from top |
of unit to eyehook. |
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Use corner post |
from packaging to protect |
coil of unit |
from |
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damage by rigging cable Use bumper boards for spreader bars. |
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CAUTION!
All panels must be in place when rigging.
Fig. 3 — Rigging Details
©
25% AIR OR ECONOMIZER HOOD
#
0 |
INDOOR AIRFLOW |
• OUTDOOR AIRFLOW |
> ALTERNATE AIRFLOW |
B |
SPACE REQUIRED FOR |
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SERVICE AND AIRFLOW |
F'9" 4 — Physical Data and Dimensions
Table la — Physical Data — 50DP,DPE012,014
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UNIT SIZE |
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50DP012 |
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50DPE012 |
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50DP014 |
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50DPE014 |
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OPERATING WEIGHT (lb) |
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Unit (Outdoor Coil/Indoor Coil) |
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AI/AI |
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1180 |
1260 |
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1260 |
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1470 |
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Al/Cu |
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1230 |
1340 |
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1340 |
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1550 |
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Cu/Cu |
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1280 |
1410 |
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200 |
1410 |
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1630 |
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Roof Curb |
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Economizer |
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110 |
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Electric Heat |
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65 |
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Alternate Motor and Drive |
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5 |
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COMPRESSOR |
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Hermetic — 2 Cylinders |
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Semi-Hermetic — 6 Cylinders |
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Quantity...Type |
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2. .P64 |
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1 P56, 1 P60 |
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2. .P77 |
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1 ..06DA328 |
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Oil (oz) |
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76 ea |
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76 ea |
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76 ea |
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160 |
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REFRIGERANT |
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± |
R-22 |
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20.8 |
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Charge (lb) Sys 1* |
Sys 2 |
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7.9, 6.6 |
10.9, 12.5 |
8 3, 8 4 |
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REFRIGERANT METERING DEVICE |
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Capillary Tubes |
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Upper Circuit |
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Quantity...Length...lD/OD (in.) |
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7 .35 0 055/0 125 8 34.0.055/0 125 8.. 44. 0 065/0.125 |
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6...25 0 055/0 125 |
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6. |
25 |
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055/0.125 |
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Lower Circuit |
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6 .25.. 0 055/0.125 |
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6.. 20...0.055/0 125 |
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7...20 .0.055/0 125 |
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7...35...0.065/0.125 |
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Quantity...Length...ID/OD (in.) |
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OUTDOOR COIL |
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Copper Tube, Aluminum or Copper Plate Fins |
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Rows |
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2 |
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3 |
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3 |
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3 |
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Fins/in. |
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Aluminum |
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13.6 |
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13.6 |
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136 |
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136 |
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Copper |
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124 |
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12.4 |
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12.4 |
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124 |
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Total Face Area (sq ft) |
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18.9 |
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18.9 |
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18.9 |
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18.9 |
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OUTDOOR AIR FAN |
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Propeller Type, Direct Drive |
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Nominal Cfm |
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9000 |
8000 |
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8000 |
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12,000 |
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Quantity...Diameter (in.) |
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2. 22 |
2. .22 |
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2...22 |
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2...26 |
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Motor Hp (1075 Rpm) |
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V2 |
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’/2 |
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'k |
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1 |
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INDOOR COIL |
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Copper Tube, Aluminum or Copper Plate Fins |
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Rows |
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2 |
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3 |
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3 |
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3 |
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Fins/in. |
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Aluminum |
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144 |
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156 |
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156 |
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14.3 |
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Copper |
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13.1 |
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14.2 |
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14.2 |
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13 1 |
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Total Face Area (sq ft) |
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14.7 |
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13.8 |
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13.8 |
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16.5 |
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INDOOR AIR FANt |
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Centrifugal, Belt Drive |
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Quantity...Size (in.) |
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2 10x10 |
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2 ..10x10 |
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2 .10x10 |
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2...10x10 |
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Nominal Cfm |
Std |
4000 |
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4000 |
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5000 |
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5000 |
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Rpm Range |
753-1066 |
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805-1093 |
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805-1093 |
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805-1093 |
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Max Allowable Rpm |
Opt |
878-1191 |
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978-1265 |
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978-1265 |
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978-1265 |
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1550 |
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1550 |
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1550 |
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1550 |
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Motor Pulley Pitch Diameter (in.) |
Std |
2 4-3 4 |
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2 8-3 8 |
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2.8-3.8 |
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2 8-3 8 |
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Fan Pulley Pitch Diameter (in.) |
Opt |
2.8-3.8 |
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3 4-4 4 |
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3 4-4.4 |
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3 4-4 4 |
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5.5 |
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6.0 |
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6.0 |
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6.0 |
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Belt, Quantity...Type...Length (in.) |
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1 V. 41 |
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1 V. 43 |
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1 V. 43 |
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1. V...43 |
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Speed Change per Full Turn |
Std |
62 |
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58 |
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58 |
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58 |
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of Moveable Pulley Flange (Rpm) |
Opt |
63 |
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57 |
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57 |
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57 |
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Moveaable Pulley Max Full Turns |
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from Closed Position |
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Factory Setting — Full Turns Open |
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3 5 |
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3 |
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35 |
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3 |
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Factory Speed Setting (Rpm) |
Std |
846 |
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920 |
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891 |
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920 |
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Motor Hp (Service Factor) |
Opt |
972 |
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1092 |
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1063 |
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1092 |
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Std |
1 (1.25) |
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2 (1 15) |
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2 (1.15) |
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2 (1 15) |
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Opt |
1’/2 (1.20) |
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3 (1.15) |
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3 (1.15) |
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3 (1.15) |
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HIGH-PRESSURE SWITCH |
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Cutout (psig) |
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428 |
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Reset (psig) |
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320 |
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LOW-PRESSURE SWITCH (Liquid Line) |
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Cutout (psig) |
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27 |
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Reset (psig)_______________________ |
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60 |
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AIR INLET SCREENS |
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2 |
.20x25x1 |
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Economizer, Number...Size (in.) |
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1...20x20x1 |
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iNDOOR AIR FILTERS (Type) |
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10% efficient — Disposable Fiberglass |
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Number...Size (in.) |
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2.16x20x2 |
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2. .16x20x2 |
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2.. |
.16x20x2 |
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2 |
.20x20x2 |
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3 |
16x20x2 |
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4 .16x25x2 |
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4 16x25x2 |
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4.. |
.16x25x2 |
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2.16x25x2 |
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‘System 1 consists of upper portion of outdoor coil and lower portion of indoor coil fUnits have adjustable standard and alternate drives
Table 1b — Physical Data — 50DP016,020
|
UNIT SIZE |
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50DP016 |
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50DP020 |
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OPERATING WEIGHT (lb) |
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Unit (Outdoor Coil/Indoor Coil) |
1470 |
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1980 |
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AI/AI |
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Al/Cu |
1550 |
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2110 |
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Cu/Cu |
1630 |
200 |
2220 |
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Roof Curb |
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Economizer |
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110 |
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Electric Heat |
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65 |
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COMPRESSOR |
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Semi-Hermetic — 6 Cylinders |
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Quantity...Type |
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1 .06DA537 |
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2. 06DA824 |
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OH (oz) |
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160 |
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160 ea |
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REFRIGERANT |
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R-22 |
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R-22 |
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Charge (lb) Sys 1*. Sys 2 |
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21.2 |
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17.0, 17.0 |
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REFRIGERANT METERING DEVICE |
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Capillary Tubes |
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U|»er Circuit |
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6 40 0 065/0 125 |
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13 25 0 055/0 125 |
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Quantity...Length...ID/OD (in.) |
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6 20 .0 055/0 125 |
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Lower Circuit |
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6...20 ..0 055/0 125 |
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13. .25.0 055/0 125 |
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Quantity ...Length...ID/OD (in.) |
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OUTDOOR COIL |
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Copper Tubes, Aluminum or Copper Plate Fins |
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Rows |
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3 |
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4 |
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Fins/in. |
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Aluminum |
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13.6 |
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136 |
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Copper |
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124 |
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124 |
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Totai Face Area (sq ft) |
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18.9 |
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22.2 |
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OUTDOOR AIR FAN |
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Propeller Type, Direct Drive |
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Nominal Cfm |
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12,000 |
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11,400 |
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Number...Dlameter (in.) |
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2 26 |
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2 .26 |
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Motor Hp (1075 Rptn) |
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1 |
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1 |
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INDOOR COIL |
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Copper Tubes, Aluminum or Copper Plate Fins |
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Rows |
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3 |
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4 |
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FIns/ln. |
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Aluminum |
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14.3 |
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14.4 |
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Copper |
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13.1 |
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13 1 |
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Totai Face Area (sq ft) |
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16.5 |
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17.9 |
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INDOOR AIR FANf |
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Centrifugal, Belt Drive |
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Quantity ...Size (in.) |
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2 .10x10 |
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2 .12x12 |
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Nominal Cfm |
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6000 |
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7200 |
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Rpm Range Std |
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916-1186 |
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— |
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Opt |
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1158-1428 |
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— |
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Pulley A |
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— |
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848 |
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Pulley B |
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— |
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1060 |
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Maximum Aiiowabie Rpm |
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1550 |
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1550 |
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Motor Puiley Pitch Diameter (in.) Std |
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3 4-4.4 |
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— |
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Opt |
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4 3-5 3 |
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— |
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Puiiey A |
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— |
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32 |
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Puiiey B |
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— |
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4.0 |
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Fan Puiiey Pitch Diameter (in.) |
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6.4 |
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6.6 |
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Belt, Quantity...Type...Length (in.) |
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1 V.45 |
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2 ..V 45 |
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SpeedChangeperFuilTurn Std |
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54 |
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— |
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of Moveable Pu Iley Flange (R pm) Opt |
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55 |
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— |
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Moveable Pulley Max Full Turns |
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5 |
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— |
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from Closed Position |
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Factory Setting — Full Turns Open |
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35 |
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— |
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Factory Speed Setting (Rpm) Std |
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970 |
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— |
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Opt |
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1240 |
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— |
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Puiiey A |
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— |
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848 |
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Puiiey B |
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— |
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1060 |
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Motor Hp (Service Factor) Std |
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3 (1.15) |
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5 (1 15) |
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Opt |
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— |
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— |
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HIGH-PRESSURE SWITCH |
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Cutout (psig) |
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428 |
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Reset (psig) |
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320 |
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LOW-PRESSURE SWITCH (Liquid Line) |
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Cutout (psig) |
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27 |
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Reset (psig) |
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60 |
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AiR INLET SCREENS |
2 |
20x25x1 |
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Economizer, Number...Size (in.) |
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1...20x20x1 |
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INDOOR AIR FILTERS (Type) |
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10% efficient |
Disposable Fiberglass |
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Number...Size (in.) |
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2. 20x20x2 |
4 |
20x20x2 |
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3.16x20x2 |
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4 16x20x2 |
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2.16x25x2 |
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'System 1 consists of upper portion of outdoor coil and lower |
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portion of indoor coii, except for size 020 which is intertwined |
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t016 unit has adjustable standard and aiternate drives The |
020 |
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unit does not have an aiternate drive, but has 2 non-adjustable |
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pulieys Puiiey A is installed in unit; puiley B is shipped with unit |
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