Bryant 559F User Manual download pdf (Page 1)

IMPORTANT — READ BEFORE INSTALLING

1. This installation instruction is intended for use ONLY

ON units with 3 outdoor fans.

2. Read and become familiar with installation instruc-

tions before installing accessory single-phase, variable

speed head pressure controller.

3. Be sure the installation conforms to all local and na-

tional codes.

4. Open, lock, and tag unit electrical disconnect switch be-

fore installing head pressure controller.

PACKAGE CONTENTS

ITEM QUANTITY

Head Pressure Control Assembly

with Attached Sensor Assembly

No. 10 Sheet Metal Screw 4

Star Lockwasher 4

⁄

-in. Lg, 4-40 Screw 2

Plate Washer 2

4-40 Nut 2

Wirenut 2

NOTE: The 208/230-v head pressure control device is rated at 8 amps

(307183-101), and the 460-v head pressure control device is rated at

4 amps (307183-102).

SAFETY CONSIDERATIONS

Installation, start-up, and servicing of this equipment can be

hazardous due to system pressures, electrical components, mov-

ing parts, and equipment location.

Only trained, qualiﬁed installers and service mechanics should

install, start up, and service this equipment. Untrained per-

sonnel can perform such basic maintenance functions as clean-

ing coils or replacing air ﬁlters. All other operations should

be performed by trained service personnel only.

When working on equipment, observe precautions in litera-

ture; tags, stickers, and labels attached to equipment; and

any other safety precautions that apply. Follow all safety codes,

and wear safety glasses and work gloves. Use care in han-

dling, rigging, and setting bulky equipment.

WARNING:

Before performing service or mainte-

nance operations on unit, turn off main power switch

to unit. Electrical shock could result in personal injury.

INTRODUCTION

IMPORTANT: This installation instruction is intended for use

ONLY ON units with 3 outdoor fans.

The solid-state head pressure control is a fan speed control

device actuated by a temperature sensor. It is speciﬁcally de-

signed for use on Bryant, Day & Night, and Payne equip-

ment and controls the outdoor-fan motor speed in response

to the saturated condensing temperature. For outdoor

temperatures down to −20 F, it maintains condensing tem-

perature at 100 F 610 F.

On units with 3 outdoor fans, the head pressure controller

must be used in conjunction with the accessory 0° F low-

ambient kit (part no. 389221-701 on 551A, 559F, 579F, 581A

units; part no. CRLOWAMB001A00 on 542J units). The head

pressure control device controls outdoor-fan motor no. 1 (see

Fig. 1) while condenser-fan motors no. 2 and no. 3 are se-

quenced off by the temperature switches in the accessory

0° F low-ambient kit.

IMPORTANT: All units must be modiﬁed for winter start con-

trol. See instructions included with the accessory winter start

control for more details.

OFM — Outdoor-Fan Motors

Fig. 1 — Outdoor Fans and Motormaster I

Controller Locations

installation instructions

ACCESSORY MOTORMASTERT I

HEAD PRESSURE CONTROLLER

P/N 307183-101 AND 307183-102

542J150,180

551A/581A155,180

559F/579F180,216

Cancels: IIK 551A-155-1 IIK 542J-150-2

6/15/96

1 2 3 4 5 6 7 8

Summary of Contents

Page 1 - P/N 307183-101 AND 307183-102

IMPORTANT — READ BEFORE INSTALLING1. This installation instruction is intended for use ONLYON units with 3 outdoor fans.2. Read and become familiar wi

Page 2

The head pressure control consists of a solid-state circuit ona printed circuit board in an aluminum extrusion (to be fas-tened to a panel of the unit

Page 3

A. 551A, 559F, 579F, and 581A Units1. Install accessory 0° F low-ambient kit (part no. 389221-701) per instructions supplied with kit.2. Identify blac

Page 4

LEGENDCAP — CapacitorHC — Heater ContactorHR — Heater RelayOFC — Outdoor-Fan ContactorOFM — Outdoor-Fan MotorTB — Terminal BlockQT — Quadruple Termina

Page 5 - CONTROLLER MOUNTING TEMPLATE

CONTROLLER MOUNTING TEMPLATE—5—

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