Grand Aire WATPM Series User Manual

1
CONTENTS
INSTALLATION INSTRUCTIONS
These instructions are intended as an aid to qualified
licensed service personnel for proper installation, adjust-
ment and operation of this unit. Read these instructions
thoroughly before attempting installation or operation.
Failure to follow these instruction may result in improper
installation,adjustment, service or maintenance possibly
resulting in fire, electrical shock, property damage,
personal injury or death.
1. SAFETY...............................................................................2
2. GENERAL..........................................................................3
3. APPLICATIONS.................................................................5
4. ELECTRICAL WIRING......................................................7
5. AIRFLOW PERFORMANCE.............................................9
6. DUCTWORK....................................................................10
7. REFRIGERANT CONNECTIONS.....................................10
8. AIR FILTER (not factory-installed)....................................11
9. FILTER INSTALLATION DIMENSIONS...........................12
10. WIRING..........................................................................13
PARTS
LIMITED
WARRANTY
5
YEAR
R-410A
REFRIGERANT
WATPM Series Air Handler
2-3-4-5 Ton Capacity
R410A

Grand Aire WATPM Series Specifications

General

Brand	Grand Aire
Model	WATPM Series
Category	Air Conditioner
Language	English

Summary

SAFETY

General Safety Precautions

Covers electrical safety, servicing hazards, and general operation warnings for user protection.

Proposition 65 Compliance

Details California Proposition 65 warnings regarding fiberglass insulation and potential chemical exposure.

GENERAL

Unit Configuration and Airflow

APPLICATIONS

Vertical Upflow Configuration

Describes the factory-set vertical upflow installation and return air ducting requirements.

Vertical Downflow Conversion

Horizontal Airflow Setup

ELECTRICAL WIRING

Power Wiring Requirements

Covers branch circuit disconnects, wire types, protective devices, and ampacity ratings.

Control Wiring Guidelines

Details low voltage wiring separation from power, wire size, and connection methods.

Grounding Procedures

Explains methods for properly grounding the unit using conduit or ground lugs for electrical safety.

AIRFLOW PERFORMANCE

Performance Tables

DUCTWORK

Ductwork Design and Compliance

AIR FILTER

Filter Sizing and Placement

WIRING DIAGRAM

Control Wiring and Gauge Specs

FIELD POWER WIRING

ECM Motor Wiring Schematics

ELECTRIC HEAT WIRING

Wiring Diagrams for Electric Heat Kits

Shows specific indoor unit wiring configurations for various kW electric heat kits and their components.

High Voltage Safety Precautions

Emphasizes the critical need to disconnect all power before servicing to prevent injury or damage.