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Installer's Guide

ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES

IMPORTANT — 

This Document is customer property. Please return this Installer's Guide to service information pack and give to the homeowner

upon completion of work.

Single Packaged Dual Fuel 16 SEER 

Convertible, 3

 

- 5 Ton, 60 - 115 KBTU

R-410A

4DCZ6036 through 4DCZ6060

WARNING:

 

HAZARDOUS VOLTAGE - DISCONNECT POWER and DISCHARGE  

 

                                              CAPACITORS BEFORE SERVICING

18-BG04D1-12A-EN

HAZARDOUS GASSES!
Exposure to fuel substances, or by-products of incomplete 
fuel combustion, is believed by the state of California to cause 
cancer, birth defects, or other reproductive harm.
This warning complies with State of California law, Proposi-
tion 65.
This product must be gas piped by a Licensed Plumber or 
Gas Fitter in the Commonwealth of Massachusetts.

WARNING

!

HAZARDOUS VOLTAGE, MOVING PARTS, AND GAS!
Bodily injury can result from high voltage electrical compo-
nents, fast moving fans, and combustible gas. For protection 
from these inherent hazards during installation and service, 
the electrical supply must be disconnected and the main 
gas valve must be turned off. If operating checks must be 
performed with the unit operating, it is the technician's re-
sponsibility to recognize these hazards and proceed safely.

WARNING

!

SAFETY HAZARD!
Do not operate the unit without the evaporator fan or coil 
access panels in place. Reinstall the access panels after 
performing maintenance proceedures on the fan. Operating 
the unit without the access panels properly installed may 
result in severe personal injury or death.

WARNING

!

SAFETY HAZARD!
This information is for use by individuals having adequate 
backgrounds of electrical and mechanical experience. Any 
attempt to repair a central air conditioning product may result 
in personal injury and/or property damage. The manufacturer 
or seller cannot be responsible for the interpretation of this 
information, nor can it assume any liability in connection 
with its use.

WARNING

!

WARNING!
This product can expose you to chemicals including lead, 
which are known to the State of California to cause cancer 
and birth defects or other reproductive harm. For more in-
formation go to www.P65Warnings.ca.gov

WARNING

!

Summary of Contents for 4DCZ6036

Page 1: ...erent hazards during installation and service the electrical supply must be disconnected and the main gas valve must be turned off If operating checks must be performed with the unit operating it is t...

Page 2: ...ingpressureexceedsthelimitofR 22 Proper service equipment is required Failure to use proper service tools may result in equipment damage or personal injury SERVICE Use only R 410A Refrigerant and appr...

Page 3: ...arefully before attempting to install oper ate or perform maintenance on this unit Installation and maintenance should be performed by qualified service techni cians only This unit is listed by Underw...

Page 4: ...Guide Step 2 Determine Unit Clearances Figure 1 4DCZ6036 1 of 3 Figures 1 through 6 show the unit critical dimensions NOTE The view labeled Bottom Side represents the Base as viewed looking up from u...

Page 5: ...Page 5 Installer s Guide Figure 2 4DCZ6036 2 of 3...

Page 6: ...Page 6 Installer s Guide Figure 3 4DCZ6036 3 of 3...

Page 7: ...Page 7 Installer s Guide Figure 4 4DCZ6048 through 4DCZ6060 1 of 3...

Page 8: ...Page 8 Installer s Guide Figure 5 4DCZ6048 through 4DCZ6060 2 of 3...

Page 9: ...Page 9 Installer s Guide Figure 6 4DCZ6048 through 4DCZ6060 3 of 3...

Page 10: ...fer to the Installation section for instruction on converting the supply and return airflow covers to down airflow 3 The field assembled Roof Mounting Curb BAYCURB050A or BAYCURB051A or a field fabric...

Page 11: ...clearance to combustible mate rial shall be maintained on air outlet duct Rooftop Installation Curb Mounting Convert Horizontal Airflow to Down Airflow The factory ships the unit for horizontal airflo...

Page 12: ...he unit by attaching clevis hooks pins or bolts to the unit casing casing hardware corner lugs angles tabs or flanges Failure to observe these warnings may result in equipment damage 1 Before preparin...

Page 13: ...r roof top applications using field fabricated ducts and sleeper rails rather than a curb or frame use the following procedure 1 Locate and secure the sleeper rails to the roof Three 3 sleeper rails a...

Page 14: ...drawing The manufacturer is not responsible for the unauthorized use of this drawing and expressly disclaims any liability for damages resulting from such unauthorized use Gasket Seal Spreader Bars B...

Page 15: ...rizontal Airflow Application with Frame Supply Air Return Air Roof Flashing Channel Iron Center Support Center Sup port required on all Frame Applications Angle Iron Frame Roof Flashing Return Air Ang...

Page 16: ...ise and vibration transmission Elbows with turning vanes or splitters are recommended to minimize air noise and resistance The first elbow in the ductwork leaving the unit should be no closer than two...

Page 17: ...making the gas pipe connection give serious consideration to providing the clearance necessary to remove the accesspanelsontheunit e g economizerandfilteraccesspanels NOTE In the absence of local cod...

Page 18: ...chonthegasvalveinletboss connect the gas piping to the unit Check the completed piping for leaks using a soap and water solution or the equivalent 6 After installation of the gas pipe in the unit the...

Page 19: ...Models that require 49 orifices for altitudes from 7000 8000 orifices must be changed to 50 HIGH ALTITUDE DERATE CHART NAT Altitude In Feet Inputs shown are with factory orifices 3 5 WC High Fire 1 8...

Page 20: ...ed A brief explanation of each mode follows RESTRICTED In the restricted mode of operation an outdoor temperature sensor is used to cause the unit to operate in the heat pump mode above a selected out...

Page 21: ...ns IMPORTANT Upon completion of wiring check all electrical connections including factory wiring within the unit Make sure all connections are tight Replace and secure all electrical box covers and ac...

Page 22: ...Page 22 Installer s Guide Figure 22 4DCZ6 Field Wiring Diagram 4DCZ6 FIELD WIRING DIAGRAM Y2 YL RD 2NDSTAGECOMPRESSOR 1STSTAGECOMPRESSOR CONSTANTCIRCULATION...

Page 23: ...h the compressor operating check the line voltage at the unit The voltage should be within the range shown on the unit nameplate If low voltage is encountered check the size and Step 5 Unit Startup le...

Page 24: ...ot been purged and air is trapped in the gas line NOTE Blue smoke produced by the heat exchanger during the initial burner firing is caused by a thin film of oil on the surface of the heat exchanger T...

Page 25: ...e After approximately 30 seconds the control energizes the indoor blower on high speed To maintain the indoor temperature at the desired setpoint the thermostat may operate the high fire gas heating c...

Page 26: ...fter defrost terminates when the outdoor coil should be clear of frost When the measured delta T during heating operation reaches the calculated initiate delta T the demand defrost control DFC opens t...

Page 27: ...he inside of the burners and the burner ports for deposit buildup and corrosion Wipe and brush the inside of the burner and the burner ports and then clean with a dry cloth If the deposit buildup or c...

Page 28: ...fast flashes is 3 seconds Status LED Liteport LED IGN Diagnostic Indicators Flash Codes Figure 23 ECM Fan Control ECM Fan Motor Adjustments If the airflow needs to be increased or decreased see the A...

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