GT-PG
4
GT-PG (50YE) Series
Bryant: Whatever it Takes.
The GT-PG Series has abundant features and industry leading
effi ciency.
Application Flexibility
• Eight Capacities 018, 024, 030, 036, 042, 048, 060 and 070.
• Extended range operation (20-120°F EWT) and fl ow rates as
low as 1.5 gpm per ton.
• Vertical packages with either true right or true left return
air options.
• Internally trapped condensate drain.
• Optional variable speed ECM fan motor adapts to various
duct systems.
• Internal electric heat unit (optional) designed for easy
fi eld installation.
• Circuit breaker protected loop and hot water generator pumps.
• Field selectable low temperature protection setting for well or loop.
• Standard pre-installed 2” fi lter frame with 2” high performance
MERV 11 pleated air fi lter.*
Operating Effi ciencies
• Puron® HFC-410A zero ozone depletion refrigerant.
• High effi ciencies in AHRI/ISO/ASHRAE/ANSI 13256-1 single
stage ratings for heating COPs, cooling EERs with low water
fl ow r ates.
• Multi-speed tap PSC fan or optional ECM variable speed fan for
ultra high effi ciencies and unsurpassed comfor t.
• Wide operating temperature range and high effi ciency allow
shorter loops.
• Optional hot water generator with internal pump generates hot
water at considerable savings.
• Rugged and highly effi cient next generation Copeland
scroll compressors provide the extremely high effi ciencies
and capacities.
• Oversized coaxial tube water-to-refrigerant heat exchangers
operate at low liquid pressure drop. Convoluted copper (and
optional cupro-nickel) water tube functions effi ciently at low-fl ow
rates and provides freeze-damage resistance.
• Oversized tin-coated, rifl ed tube/lanced aluminum fi n, air to
refrigerant heat exchangers provide high effi ciency at low
face velocity.
•
Large low RPM blowers with optional variable speed fan motors
provide quiet, effi cient air movement with high static capability.
Service Advantages
• Removable panels - 3 for compressor, 2 for air
handling compartment.
• Low profi le control box grants easy access to all
internal components.
• Factory installed liquid line fi lter/drier.
• Brass swivel-type water connections for quick connection and
elimination of wrenches or sealants during installation.
• Bi-directional thermal expansion valve.
• CXM control features status light with memory for
easy diagnostics.
• Unit Performance Sentinel alerts homeowner of potential
performance issues.
• Circuit breaker protected 75VA control transformer.
• Optional ECM motor includes control board with thermostat
signal diagnostic LEDs, airfl ow display LED (100 CFM per fl ash),
and simplifi ed CFM selection.
• Insulated divider and separate air handling/compressor
compartments permit service testing without air bypass.
• Fan motors have quick attach wiring harness for fast removal.
• Internal dropout blower for easy servicing.
• High and low pressure service ports on refrigerant circuit.
• Accurate refrigerant sensing low temperature protection.
Factory Quality
• All units are built on our Integrated Process Control
Assembly System (IPCS). The IPCS is a unique state of the ar t
manufacturing system that is designed to assure quality of the
highest standards of any manufacturer in the water-source
industry. Our IPCS system:
- Verifi es that the correct components are being assembled.
- Automatically performs special leak tests on all joints.
- Conducts pressure tests.
- Performs highly detailed run test unparalleled in the
HVAC industry.
- Automatically disables packaging for a “failed” unit.
- Creates computer database for future service analysis and
diagnostics from run test results.
• All units are water run-tested in all modes to insure effi ciency
and reliability.
• Heavy gauge galvanized steel cabinets are epoxy powder coated
for durable and long-lasting fi nish.
• All refrigerant brazing is done in a nitrogen atmosphere.
• All units are deep evacuated to less than 100 microns prior to
refrigerant charging.
• All joints are both helium and halogen leak tested to insure
annual leak rate of less than 1/4 ounce.
• Coaxial heat exchanger, refrigerant suction lines and all water
lines are fully insulated to eliminate condensation problems in low
temperature applications.
• Noise Reduction features include: double isolation mounted
compressors; insulated compressor compartment; interior cabinet
insulation using 1/2” coated glass fi ber and optional variable
speed fan.
• Safety features include: high pressure and loss of charge to
protect the compressor; condensate overfl ow protection; low
temperature protection sensors to safeguard the coaxial heat
exchanger and air coil; hot water high-limit and low compressor
discharge temperature switch provided to shut down the hot
water generator when conditions dictate. Fault lockout enables
emergency heat and prevents compressor operation until
thermostat or circuit breaker has been reset.
Simplifi ed Controls
• CXM solid state control module.
• ‘CFM’ LED displays airfl ow (optional ECM motor).
• Dehumidifi cation mode for higher latent cooling
(optional ECM motor).
GT-PG Design Features