Carrier 50DP016 User Manual download pdf

HEATING t COOLING

50DP,DPE012,014

50DP016,020

Single-Package Cooling Units

Installation, Start-Up and Service Instructions

CONTENTS

Page

safety considerations

...........................

installation .... 1_10

• RooFcto'S""

..................

• • • '

• alternate unit support

• p*ootTt”'9 Unit

................................

• POSITIONING

• ROOF MOUNT

Fabricate Ductwork

.......................

Q+fE c Nlake Unit Duct Connections

.......................

c Trap Condensate Drain

.................................

m Make Electrical Connections

.................

! POWER SUPPLY

CONTROL WIRING

Make Outdoor Air Inlet

Adjustments

............................................................

...

1 outdoor" AIR "dAMPE’r

...........

• OPTIONAL ECONOMIZER

step 8 — Install Outdoor Air Hood

.........................

^"FART-UP

.............................................................

10-13

SERVICE..................................................................14-16

SAFETY CONSIDERATIONS

Installation and servicing of air conditioning

ment can be hazardous due to system pressure ano _

trical components. Only trained and •

personnel should install, repair or service air condì g

equipment.

Untrained personnel can perform basic

functions of cleaning coils and filters and rep g

filters. All other operations should ^

trained service personnel. When working on

tioning equipment, observe precautions »of“® ^ r>rpl

tags and labels attached to the unit and other sal y p

cautions that may apply.

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

TabTlbl6b

Catalog No 565-104

Printed in U S A Form 50DP-26SI

ii.n,. Carrier Specified Parts.

Pgi

7-88

Replaces; 50DP-25SI

1 2 3 4 5 6 ... 15 16

Summary of Contents

Page 1 - Single-Package Cooling Units

HEATING t COOLING50DP,DPE012,014 50DP016,020 Single-Package Cooling UnitsInstallation, Start-Up and Service InstructionsCONTENTSPagesafety considerati

Page 2 - CAUTION!

Step 8 — Install Outdoor Air Hood — The outdoor air hood is common to 25% air ventilation and economizer. If economizer is used

Page 3 - > ALTERNATE AIRFLOW

wTable 4 — Air Quantity LimitsUNIT MODEL MIN CFM MAX CFM50DP,DPE012 3000500050DP,DPE0143750625050DP016 45007500*50DP02054009000'Indoor Fan Max Wa

Page 4

Variable Volume Units — Units suitable for use with variable volume air handling systems are equipped with 2 electric unloaders on the com

Page 5

STEP CONTROLLER — The step controller consists of a reversible electric motor which drives a set of cams that activate up to 5 snap-acting switches

Page 6 - 11 DRAIN HOLES

SERVICEA WARNINGBefore performing service or maintenance operations on unit, turn off main power switch to unit. Turn off accessory heater power sw

Page 7 - REMOVABLE JUMPER

#Economizer Adjustment1. Set enthalpy control at its highest setting. If outdoor temperature is above 70 F, perform the following: ins

Page 8 - Do not manually operate

SUCTION LINE TEMPERATURE FFig. 25 — Cooling Charging Chart — 50DPE012. 50DP014(TDV)COuzzo20 30 40 50 60SUCTION LINE TEMP (F)70Fig. 26 — Cooling Char

Page 9

Fig. 1 — Roof Curb DetailsINDOOR AIR FAN MOTORINDOOR AIR FAN MOTOR(50PQ900I5I )TRANSITION DUCTFig. 2 — Side Supply/Return Curb DetailsDo not install

Page 10 - / I n«/FR

25% AIR OR ECONOMIZER HOOD#0INDOOR AIRFLOW• OUTDOOR AIRFLOW> ALTERNATE AIRFLOWF'9" 4 — Physical Data and DimensionsB SPACE REQUIRED FOR S

Page 11 - Table 4 — Air Quantity Limits

Table la — Physical Data — 50DP,DPE012,014UNIT SIZE50DP01250DPE012 50DP01450DPE014OPERATING WEIGHT (lb)Unit (Outdoor Coil/Indoor Coil)AI/AI1180 126012

Page 12

Table 1b — Physical Data — 50DP016,020UNIT SIZE 50DP01650DP020OPERATING WEIGHT (lb)Unit (Outdoor Coil/Indoor Coil) AI/AI Al/Cu Cu/Cu Roof Curb Economi

Page 13 - I 2 3 4

Step 3 — Field Fabricate Ductwork — Secure all ducts to building structure. Use flexible duct connectors between unit and ducts as requ

Page 14 - '/4 ± '/b

#(| )FPT DRAIN CONNECTION^ U (HALF COUPLING)BASE RAIL-uTO TRAP -!>Fig. 9 — Condensate Drain Piping DetailsStep 6 — Make Electrical ConnectionsFIELD

Page 15 - Do not manually

25% ADJUSTABLE AIR DAMPERBASE'UNITSECURING SCREWSFig. 12 — 25% Outdoor Air Section DetailsCOOLINGLOCKOUTSWITCHENTHALPYCONTROLDAMPER MOTORFILTERS

Page 16 - Tab llb

Table 2 — Electrical Data (cont)#UNITMODELVOLTS-PH-HZVOLTAGERANGECOMPROUTDOORFANMOTORINDOORFANMOTORFACTORY-INSTALLEDHEATERSPO\WERSUPPLYMin Max RLA LRA

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Carrier 50DP016 User Manual

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