835964-UIM-A-0112

For additional connection diagrams for all UPG equipment refer to “Low Voltage System Wiring” document available online at www.upgnet.com in the Product Catalog Section.

AC 1A

Single Stage Air Conditioner – PSC Air Handler

THERMOSTAT

*PP11C70224

Y

Full Stage Compressor

RH

24 – Volt Hot

(Heat XFMR)

G

Fan

RC

24 – Volt Hot

(Cool XFMR)

W

Full Stage Heat

HM1

Humidistat

Clipping Jumper W914 for electric heat on thermostat is not necessary

24VAC Humidifier

(Optional)

24VAC

Electronic Air Cleaner

(Optional)

ID MODELS

AHP

SHP

MA

 

 

 

PSC

 

SINGLE STAGE

 

 

 

 

SINGLE STAGE

 

 

AIR HANDLER

 

AIR

 

 

 

AIR CONDITIONER

 

 

 

 

 

 

CONDITIONER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PSC

1

SINGLE STAGE

 

 

AIR HANDLER CONTROL

 

AIR CONDITIONER

 

 

 

COM

 

C

 

 

24 – Volt Common

 

24 – Volt Common

 

 

 

 

 

 

 

 

 

Y/Y2

 

Y

 

 

Second or Full

 

 

 

 

CompressorCompressorContactor

 

 

Stage Compressor

 

 

 

 

 

 

 

 

 

R

 

 

 

 

24 – Volt Hot

 

 

 

 

 

 

 

 

 

 

 

 

 

G

 

 

 

 

 

Fan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W2

 

 

 

 

Second Stage Heat

 

 

 

 

 

 

 

 

 

 

 

Y1

 

 

 

 

Single Stage Compressor

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

Reversing Valve

 

 

 

 

Energized in Cool

 

 

 

 

 

X/L

 

 

 

 

Malfunction Light

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W1

 

 

 

 

First Stage Heat

 

 

 

 

 

 

 

 

 

 

 

HUM

 

 

 

 

Humidity Switch

 

 

 

 

 

 

 

 

Open on Humidity Rise

 

 

 

 

HUM OUT

 

 

 

 

(24 VAC out)

 

 

 

 

Humidifier

 

 

 

 

EAC(24 VAC out)

 

 

 

 

 

 

 

 

Electronic Air Cleaner

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Move HUM STAT

 

 

 

 

jumper to “YES”

 

 

 

 

if humidistat is to be used.

 

 

 

 

Refer to AH documentation

 

 

 

 

for W1 and W2 electric

 

 

 

 

heat staging options.

 

 

 

 

 

 

 

 

 

 

 

OtherPartPartNumbers:

1

 

 

 

SAP

=

Legacy

 

 

 

 

 

 

 

265902159480

=

031-0915667

 

 

FIGURE 10: Thermostat Chart - Single Stage AC with PSC Air Handler

Johnson Controls Unitary Products

9

Page 9
Image 9
Johnson Controls R-410A installation manual AC 1A, Thermostat, ID Models, PSC Single Stage AIR Handler AIR Conditioner

R-410A specifications

Johnson Controls R-410A is a widely recognized refrigerant in the HVAC industry, primarily used in air conditioning and heat pump applications. Known for its environmental benefits and efficiency, R-410A has risen to prominence as a reliable replacement for older refrigerants such as R-22, which are being phased out due to their harmful impact on the ozone layer.

One of the standout features of R-410A is its low impact on global warming potential, making it an environmentally-friendly choice. It is composed of a mixture of hydrofluorocarbons (HFCs), specifically difluoromethane (R-32) and pentafluoroethane (R-125). This blend allows for efficient heat transfer while minimizing harmful emissions, addressing the growing concerns over climate change.

Johnson Controls emphasizes the efficiency of R-410A systems, which can provide a highly effective cooling performance. They are designed to operate at higher pressures compared to R-22, allowing for more efficient heat exchange and better overall system performance. This results in greater energy efficiency ratings, contributing to lower electricity bills for consumers.

In terms of technology, R-410A systems often feature advanced compressor designs and enhanced coil configurations, which optimize the system’s performance. Johnson Controls integrates state-of-the-art variable speed technologies and smart controls that enhance responsiveness and adaptability to changing environmental conditions. These innovations not only improve thermal comfort but also reduce energy consumption, leading to a smaller carbon footprint.

Another significant characteristic of R-410A is its compatibility with various lubricants, which is crucial for maintaining system performance and longevity. Johnson Controls often utilizes specially formulated lubricants that work optimally with R-410A, ensuring reliable operation and reducing the risk of issues related to lubrication.

In summary, Johnson Controls R-410A is an important refrigerant characterized by its efficient, environmentally friendly properties and advanced technologies. Its application in modern HVAC systems provides users with excellent performance, substantial energy savings, and an effective solution for climate-conscious cooling. As the industry continues to evolve, R-410A remains a central player in the push toward more sustainable and efficient heating and cooling solutions.