Johnson-controls AFFINITY 340968-XIM-A-0108 User Manual

CONTENTSGENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . .

340968-XIM-A-010810 Johnson Controls Unitary ProductsTABLE 7: PHYSICAL DATAMODELDNA018 024 030 036 042 048 060EVAPORATORBLOWERCENTRIFUGAL BLOWER (Dia.

340968-XIM-A-0108Johnson Controls Unitary Products 11FIGURE 7 - UNIT DIMENSIONS - FRONTAll dimensions are in inches.They are subject to change with-o

340968-XIM-A-010812 Johnson Controls Unitary ProductsFIGURE 8 - UNIT DIMENSIONS - FRONT & BOTTOM2 6 - 3 / 464 - 5 / 88 - 7 / 81 1 - 7 / 81 9 - 1

340968-XIM-A-0108Johnson Controls Unitary Products 13SEQUENCE OF OPERATIONThe unit is controlled by a conventional heating/cooling ther-mostat common

340968-XIM-A-010814 Johnson Controls Unitary ProductsThe control recognizes a call for 2nd stage heat when W2 isenergized (connected to "R")

340968-XIM-A-0108Johnson Controls Unitary Products 152. Pressure Switch (PS) - If the draft motor should fail, the pressure switch prevents the igniti

340968-XIM-A-010816 Johnson Controls Unitary Products2. Turn off all electric power to the appliance if service is to be performed.3. Remove the contr

340968-XIM-A-0108Johnson Controls Unitary Products 17To adjust the pilot flame:1. Remove the pilot adjustment cover screw.2. Adjust the pilot adjustme

340968-XIM-A-010818 Johnson Controls Unitary ProductsCHECKING SUPPLY AIR CFMTo check the supply air CFM after the initial balancinghas been completed:

340968-XIM-A-0108Johnson Controls Unitary Products 19FIGURE 13 - DNA COIL DELTA P VS. AIRFLOWDNA018 DNA024-30 DNA042 DNA048-60 ID Coil Delta P DNA Co

340968-XIM-A-01082 Johnson Controls Unitary ProductsTABLE OF CONTENTSGENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3I

340968-XIM-A-010820 Johnson Controls Unitary ProductsTABLE 14: SUPERHEAT CHARGING TABLE FOR DNA024OUTDOORTEMP. °FSUPERHEAT AT COMPRESSOR SUCTION (F),

340968-XIM-A-0108Johnson Controls Unitary Products 21TABLE 17: SUPERHEAT CHARGING TABLE FOR DNA042OUTDOORTEMP. °FSUPERHEAT AT COMPRESSOR SUCTION (F),

340968-XIM-A-010822 Johnson Controls Unitary ProductsFIGURE 14: TYPICAL WIRING DIAGRAM DNA 018 THRU 060 (208/230-1-60 POWER SUPPLY)

340968-XIM-A-0108Johnson Controls Unitary Products 23TYPICAL WIRING DIAGRAM NOTES(SEE FIGURE 14)1. All field wiring to be accomplished following city,

Subject to change without notice. Printed in U.S.A. 340968-XIM-A-0108Copyright © 2008 by Johnson Controls, Inc. All rights reserved. Supersedes: 28648

340968-XIM-A-0108Johnson Controls Unitary Products 3GENERALYORK Model DNA units are cooling/heating air conditionersdesigned for outdoor installation.

340968-XIM-A-01084 Johnson Controls Unitary ProductsINSTALLATIONLIMITATIONSThese units must be installed in accordance with the follow-ing national an

340968-XIM-A-0108Johnson Controls Unitary Products 5 CLEARANCESAll units require certain clearances for proper operation andservice. Refer to Table 1

340968-XIM-A-01086 Johnson Controls Unitary ProductsSERVICE ACCESSAccess to all serviceable components is provided by the fol-lowing removable panels:

340968-XIM-A-0108Johnson Controls Unitary Products 7TABLE 3: NATURAL GAS APPLICATION DATAAVAILABLE ON MODELSINPUT(MBH)1OUTPUT(MBH)GAS RATE2FT.3/HR.NUM

340968-XIM-A-01088 Johnson Controls Unitary ProductsGAS PIPINGProper sizing of gas piping depends on the cubic feet perhour of gas flow required, spec

340968-XIM-A-0108Johnson Controls Unitary Products 9 i4. All piping should be cleaned of dirt and scale by ham-mering on the outside of the pipe and b