Payne PF1B, Manual

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HEAT PUMP PERFORMANCE — ENHANCED BY VARIABLE
REFRIGERATION CIRCUITING — PH1S UNITS
Cooling Mode — During cooling, the PH1S outdoor coil con-
denses the hot gas through a converging series circuit. First the
check valve system feeds all the hot gas through the circuits at
the bottom half of the coil. This desuperheats and partially con-
denses the hot gas. The hot gas is then routed through the up-
per half of the coil and finally through the subcooling coil. The
subcooled liquid then enters the liquid line. This process also
occurs during defrosting, resulting in improved, more thorough
defrosting by assuring that the bottom half of the coils is hot and
clear so that the top frost slides down and off.
Heating Mode — During heating, the PH1S outdoor coil be-
comes the evaporator, absorbing available heat from the out-
door air. The check valve system directs the flow of liquid
refrigerant to individual parallel circuits, creating a ‘‘full face’’ ac-
tive condition; the entire coil face is exposed to the same tem-
perature of entering refrigerant. The result is maximum recovery
of heat from outdoor air, a higher COP, and improved reliability.
INNOVATIVE PF1B INDOOR UNITS ARE CUSTOM
MATCHED TO PH1S OUTDOOR UNITS FOR SUPERIOR
SYSTEM PERFORMANCE — The PF1B has excellent fan per-
formance, efficient direct-expansion (DX) coils, easy installa-
tion, and a unique combination of indoor air quality features. Its
versatility and state-of-the-art features help to ensure that your
heat pump system provides economical performance now and
in the future.
Easy Installation and Service — The PF1B multiposition de-
sign and component layout help you to get the unit installed and
running quickly. The direct-expansion (DX) coils have factory-
installed thermostatic expansion valve (TXV) with matching dis-
tributor nozzles. The PF1B unit also includes factory-installed
check valve and piping for heat pump duty with the matching
PH1S unit.
The PF1B unit can be converted from horizontal to vertical op-
eration by simply repositioning the unit. Drain pan connections
are duplicated on both sides of the unit. Fan motors and con-
tactors are prewired. For easier service, the filters, motor, drive,
TXV, check valve, and coil connections are accessible by re-
moving a single side panel.
Indoor Air Quality (IAQ) Features — The unique combination
of IAQ features in the PF1B indoor unit helps to make sure that
only clean, fresh, conditioned air is delivered to the occupied
space.
Standard 2-in. disposable filters remove dust and airborne par-
ticles from the occupied space.
Thermal insulation contains an immobilized anti-microbial agent
to inhibit the growth of bacteria and fungi. The anti-microbial
agent is registered with the U.S. Environmental Protection
Agency (EPA).
The pitched PVC drain pan can be adjusted for a right- or left-
hand connection to provide positive drainage and to prevent
standing condensate.
The PF1B accessory economizer can provide ventilation air to
improve indoor air quality.
Economy — The PF1B air handler has low initial costs, and it
continues to save money by providing reduced installation ex-
pense and energy-efficient performance.
Quick installation reduces installation costs, and TXV, check
valve, and heat pump piping are factory-installed.
High-efficiency, precision-balanced fans minimize air turbu-
lence, surging, and unbalanced operation, cutting operating
expenses.
The economizer accessory precisely controls the blend of out-
door air and room air to achieve comfort levels. When the out-
side air enthalpy is suitable, outside air dampers can fully open
to provide ‘‘free’’ cooling.
Rugged Dependability — The PF1B units are made to last.
The die-formed galvanized steel panels ensure structural integ-
rity under all operating conditions. Galvanized steel fan hous-
ings are securely mounted to a die-formed galvanized steel
deck. Coil housings are galvanized steel, and coils have alumi-
num fins mechanically bonded to copper tubes. The PVC con-
densate drain pans provide corrosion-free performance.
Coil Flexibility — Model PF1B coils have galvanized steel cas-
ings; inlet and outlet connections are on the same end. The coils
are designed for use with Refrigerant 22 and have copper tubes
mechanically bonded to aluminum fins. The coils include
matched, factory-installed TXV with matching distributor nozzle.
Check valve and heat pump piping are also included.
Duplicate piping access holes on both sides of the unit eliminate
drilling; condensate connections for both vertical and horizontal
installations are also provided on both sides of the unit.
CONTENTS
Page
Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . 4
ARI Capacities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Accessories — Outdoor Unit . . . . . . . . . . . . . . . . . . . . 7
Accessories — Indoor Unit. . . . . . . . . . . . . . . . . . . . . . 7
Dimensions — Outdoor Unit . . . . . . . . . . . . . . . . . . . . . 8
Dimensions — Indoor Unit . . . . . . . . . . . . . . . . . . . . . 9,10
Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . 10
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . 11-13
Typical Piping and Wiring . . . . . . . . . . . . . . . . . . . . . . 14
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15,16
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Typical Control Wiring Schematic. . . . . . . . . . . . . . . . 17-19
Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-21
Guide Specifications — PH1S090 Outdoor Unit . . . . . . 22,23
Guide Specifications — Indoor Unit . . . . . . . . . . . . . . 24,25
RUGGED COMPRESSOR
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