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Rheem RH1P4821STANAA - User Manual

Rheem RH1P4821STANAA
56 pages
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WARNING
sWARNING
!
These instructions are intended as an aid to qualified licensed
service personnel for proper installation, adjustment and
operation of this unit. Read these instructions thoroughly before
attempting installation or operation. Failure to follow these
instructions may result in improper installation, adjustment,
service or maintenance possibly resulting in fire, electrical
shock, property damage, personal injury or death.
AIR HANDLERS
FEATURING INDUSTRY STANDARD R-410A REFRIGERANT:
(-)H1P Standard Efficiency with Aluminum Coil
(-)H1T High Efficiency with Aluminum Coil
INSTALLATION INSTRUCTIONS
92-20521-110-00
(BASED ON 92-20521-66-09)

Table of Contents

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Rheem RH1P4821STANAA Specifications

General IconGeneral
BrandRheem
ModelRH1P4821STANAA
TypeAir Handler
RefrigerantR-410A
Voltage208/230V
Phase1
Height46.5 inches
Motor TypePSC
Depth21 inches
Nominal Airflow1600 CFM
Filter TypeDisposable
Shipping Weight130 lb

Summary

1.0 SAFETY INFORMATION

General Safety Precautions

Covers power disconnection, service personnel, grounding, and ductwork safety.

2.6 IMPORTANCE OF PROPER INDOOR;OUTDOOR MATCH-UPS

2.7 IMPORTANCE OF QUALITY INSTALLATION

3.0 INSTALLATION

Tools and R-410 A Refrigerant Specifications

Lists tools, R-410A specs, and quick reference guide.

3.2 APPLICATIONS AND ORIENTATION

Vertical Downflow & Horizontal Right Discharge

Procedures for converting unit for downflow/right discharge.

3.2 APPLICATIONS AND ORIENTATION (continued)

Combustible Floor Base Requirement

Reiteration of combustible floor base requirement for downflow.

3.2 APPLICATIONS AND ORIENTATION (continued)

3.2.4 INSTALLATION IN MOBILE;MANUFACTURED HOMES

3.3 AUXILIARY OVERFLOW PAN

3.6 DUCTWORK

3.7 RETURN AIR FILTER

3.9 REFRIGERANT LINE CONNECTIONS & CHARGING

Brazing Procedures

Procedures and precautions for brazing refrigerant lines.

3.9 REFRIGERANT LINE CONNECTIONS & CHARGING (continued)

Leak Testing, Evacuation, and Charging

Procedures for leak testing, evacuation, and refrigerant charging.

TXV Sensing Bulb and Condensate Drain

Attaching TXV bulb and condensate drain guidelines.

3.13 ELECTRICAL WIRING

208 Volt Configuration and Grounding

Steps for 208V config, grounding importance, and power wiring.

3.13 ELECTRICAL WIRING (continued)

Copper Wire Size and Blower Motor Electrical Data

3.13.6 ELECTRICAL DATA - WITH ELECTRIC HEAT: (-)H1 P

3.13.6 ELECTRICAL DATA - WITH ELECTRIC HEAT: (-)H1 P - continued

3.13.6.1 ELECTRICAL DATA - WITH ELECTRIC HEAT: (-)H1 P - continued

3.13.6.2 ELECTRICAL DATA - WITH ELECTRIC HEAT: (-)H1 T

3.13.7 ELECTRIC HEATER KIT SUPPLEMENTAL INFORMATION

3.13.8 CONTROL WIRING

3.14 AIRFLOW

3.14.1 GENERAL AIRFLOW OPERATING LIMITS

3.14.2 SELECTING INDOOR BLOWER MOTOR SPEED

(-)H1 P PSC Motor Speed Selection

(-)H1 T ECM Motor Speed Selection

3.14.3 AIR-FLOW PERFORMANCE DATA

240 V Airflow Data for (-)H1 P PSC Motor

3.14.3.1 240 V AIRFLOW PERFORMANCE DATA: (-)H1 P (PSC MOTOR) - continued

3.14.3.2 115;208;480 V AIRFLOW PERFORMANCE DATA: (-)H1 P (PSC MOTOR)

3.14.3.2 115;208;480 V AIRFLOW PERFORMANCE DATA: (-)H1 P (PSC MOTOR) - continued

3.14.3.3 115;208;240;480 V AIRFLOW PERFORMANCE DATA: (-)H1 T (CONSTANT TORQUE MOTOR)

3.14.3.3 115;208;240;480 V AIRFLOW PERFORMANCE DATA: (-)H1 T (CONSTANT TORQUE MOTOR) - continued

4.0 START-UP

Pre-Start Checklist and Operational Check-out

Checklist and steps for system startup and operational checks.

Sequence of Operation

4.3 SEQUENCE OF OPERATION (continued)

Heat Pump, Defrost, and Emergency Heat Modes

4.6 CHECKING INDOOR AIR-FLOW

Estimating CFM via Static Pressure or Temperature Rise

4.7 CHECKING REFRIGERANT CHARGE

5.0 COMPONENTS & CONTROLS

Blower Motor, Capacitor, and Control

5.5 TRANSFORMER

5.6 INDOOR COIL ASSEMBLY

6.0 ACCESSORIES & KITS

7.0 MAINTENANCE

Air Filter and Coil;Drain Maintenance

Blower Motor;Wheel and Lubrication

Blower Assembly Removal and Replacement

7.5 BLOWER ASSEMBLY REMOVAL & REPLACEMENT (continued)

Motor and Blower Wheel Replacement

7.8 REPLACEMENT PARTS

8.0 DIAGNOSTICS

Troubleshooting Common Issues

Lists common problems like motor failure, vibration, and airflow issues with causes.

9.0 WIRING DIAGRAMS

(-)H1 P - 115 V Wiring Diagram

Electrical wiring diagram for (-)H1P model at 115V.

9.2 WIRING DIAGRAM (-)H1 P - 208;240 V

9.3 WIRING DIAGRAM (-)H1 P - 480 V

9.4 WIRING DIAGRAM (-)H1 T - 115 V

9.5 WIRING DIAGRAM (-)H1 T - 208;240 V

9.6 WIRING DIAGRAM (-)H1 T - 480 V

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