![background image](http://html.mh-extra.com/html/carrier/50hcqa04-06/50hcqa04-06_installation-instructions-manual_2563304002.webp)
2
which
will
result in enhanced installation, reliability, or
operation.
MODEL NUMBER NOMENCLATURE AND
DIMENSIONS
See Fig. 1 for 50HCQ model number nomenclature. See Fig. 2
for unit dimensional drawings. Figure 3 shows service clear-
ance dimensions.
Rated Indoor Airflow
Table 1 lists the rated indoor airflow used for the AHRI effi-
ciency rating for the units covered in this document.
Table 1 — Rated Indoor Airflow
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause personal injury
or death.
Before performing service or maintenance operations on
unit, turn off main power switch to unit and install lock(s)
and lockout tag(s). Ensure electrical service to rooftop unit
agrees with voltage and amperage listed on the unit rating
plate. Unit may have more than one power switch.
WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal injury,
death and/or equipment damage.
Puron
®
(R-410A) refrigerant systems operate at higher
pressures than standard R-22 systems. Do not use R-22 ser-
vice equipment or components on Puron refrigerant equip-
ment.
WARNING
PERSONAL INJURY AND ENVIRONMENTAL HAZ-
ARD
Failure to follow this warning could cause personal injury
or death.
Relieve pressure and recover all refrigerant before system
repair or final unit disposal.
Wear safety glasses and gloves when handling refrigerants.
Keep torches and other ignition sources away from refriger-
ants and oils.
WARNING
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care
and wear appropriate protective clothing, safety glasses and
gloves when handling parts and servicing air conditioning
equipment.
MODEL NUMBER
RATED INDOOR AIRFLOW
(CFM)
50HCQA-04
1225
50HCQA-05
1700
50HCQA-06
1625
Summary of Contents for 50HCQA04-06
Page 22: ...22 Fig 36 Electro Mechanical Control Wiring 208 230v 460v ...
Page 23: ...23 Fig 37 Electro Mechanical Control Wiring 575v ...
Page 24: ...24 Fig 38 Electro Mechanical Power Wiring 208 230 1 60 ...
Page 25: ...25 Fig 39 Electro Mechanical Power Wiring 208 230 3 60 ...
Page 26: ...26 Fig 40 Electro Mechanical Power Wiring 460 3 60 ...
Page 27: ...27 Fig 41 Electro Mechanical Power Wiring 575 3 60 ...
Page 28: ...28 Fig 42 PremierLink Wiring Schematic 208 230 460v ...
Page 29: ...29 Fig 43 PremierLink Wiring Schematic 575v ...