Colortronic AquaSnap 30RAN010-055 Spezifikationen PDF herunterladen

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

PC 903 Catalog No. 533-00044 Printed in U.S.A. Form 30RA-11SI Pg 1 702 2-02 Replaces: 30RA-6SI

Book 2

Ta b 5 c

Installation Instructions

Part No: 30RA-900---006, 30RA-900---015, 30RA-900---016, 30RA-900---017,

30RA-900---018, and 30RA-900---019

CONTENTS

Page

GENERAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

SAFETY CONSIDERATIONS

. . . . . . . . . . . . . . . . . . . . . . 1

PREINSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Install Wind Baffles and Brackets

. . . . . . . . . . . . . . . . 1

Control Mounting

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Control Wiring

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Adjust the Configuration Jumper

. . . . . . . . . . . . . . . . . 6

Configure Unit For Motormaster V

Electronic Control Operation

. . . . . . . . . . . . . . . . . . . 6

Test the Motormaster V Electronic

Control Option Output

. . . . . . . . . . . . . . . . . . . . . . . . . 6

START-UP

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8,9

Low Ambient Application Notes

. . . . . . . . . . . . . . . . . . 8

Motormaster V Control

. . . . . . . . . . . . . . . . . . . . . . . . . . . 8

TROUBLESHOOTING

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

GENERAL

This book contains instructions for the installation and start-

up of the Motormaster V electronic low ambient control on

chiller models 30RA010-055.

This control varies condenser fan speed based on liquid

pressure. The control is a Variable Frequency Drive (VFD) and

is only compatible with motors rated for use with VFDs. The

accompanying pressure transducer has a 0 to 5 vdc output

range and a –40 to 460 psi range. The VFD provides a 5 vdc

output for the transducer on pin 6.

This system is a reverse acting, proportional-integral (PI)

control. The VFD will vary the motor speed to drive the liquid

line pressure to the set point during ambient temperatures

below 60 F (16 C). The set point is lower than a normal operat-

ing pressure during summer operation. At higher ambient

temperatures, the fan will go to full speed (60 Hz or 50 Hz

depending on model) and remain there since it can not go fast

enough to bring the pressure down to the set point. When the

VFD is at full speed, it acts just like a fixed speed fan.

When the ambient air temperature drops, a fan running at

full speed draws too much air across the condenser coil to

maintain a minimum condensing pressure/temperature. In

these conditions, the VFD will slow down and begin to main-

tain a set point.

The VFD will display the set point as the default. The set

point is displayed in speed as Hz and is configured by the start

command jumper.

Operating modes are configured for R-22 with a set point of

135 psig on the liquid line.

NOTE: The drive is phase insensitive in regard to incoming

line voltage. This means that the VFD will operate with any

phase sequence of the incoming three-phase voltage.

The standard outdoor-air temperature limitation of the Aqua-

snap chillers is 45 F (7.2 C) (sizes 010-018) and 32 F (0° C)

(sizes 022-055).

The Motormaster V electronic control low ambient opera-

tion kit can be used to extend the system operation down to

–20 F (28 C).

SAFETY CONSIDERATIONS

Installing, starting up, and servicing air-conditioning equip-

ment can be hazardous due to system pressures, electrical com-

ponents and equipment location.

Only trained, qualified installers and service technicians

should install, start up, and service this equipment.

When working on air-conditioning equipment, observe pre-

cautions in the literature and on tags, stickers, and labels

attached to the equipment.

Follow all safety codes. Wear safety glasses and work

gloves. Use care in handling equipment.

PREINSTALLATION

Inspect the contents of the accessory package before install-

ing. File a claim with the shipper if you find shipping damage

or contact your Carrier representative if any parts are missing.

See Tables 1A and 1B for kit package contents.

INSTALLATION

Install Wind Baffles and Brackets —

Wind baffles

and brackets must be field fabricated and installed for all units

to ensure proper operation at low-ambient temperatures with

Motormaster V electronic controller. Unit sizes 010-030

require one baffle, sizes 032-055 require two baffles. See Fig. 1

and 2 for the sizes and details of brackets and baffles required.

See Fig. 3 and 4 for brackets and baffles location.

Use 14-gage galvanized sheet metal or similar corrosion-

resistant material for the brackets and 20-gage for the baffles.

Be sure power to equipment is shut off before performing

maintenance or service.

AquaSnap

™

30RA010-055

Accessory Low Ambient Operation

Motormaster® V Electronic Control

50/60 Hz

1 2 3 4 5 6 ... 11 12

Inhaltsverzeichnis

Seite 1 - Installation Instructions

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 9

Seite 2 - Fig. 1 — Bracket Dimensions

10TROUBLESHOOTING Troubleshooting the Motormaster® V control requires acombination of observing system operation and VFD informa-tion. The drive provi

Seite 3

Seite 4

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 9

Seite 5 - Control Wiring

210.00 TYP(254)A48.00(1219)0.50 (13)10.00 TYP(254)10.00 TYP(254)10.00 TYP(254)0.50 (13)B4.00 TYP(102)O0.28 (7)15 HOLESDimensions given in inches (mm).

Seite 6 - Option Output —

3FAN B1FAN A1FAN A2SEE DETAIL ASEE DETAIL BDETAIL BSCALE 1:11.89(48)5.74 (146)1.25 (32)1.25 (32)2.67 (68)0.49(12)DETAIL ASCALE 1:1O0.28(7)0.159 (4)0.1

Seite 7 - DISCONNECT

4Table 1A — Package Contents of Motormaster® V Control for 30RA010-030Table 1B — Package Contents of Motormaster V Control for 30RA032-05530RA MODELS

Seite 8 - Motormaster V Control —

5Control Mounting30RA010-030 — Mount the Motormaster® V electroniccontrol on the fan deck leg using the four screws provided asshown in Fig. 5.30RA032

Seite 9

6Adjust the Configuration Jumper — Depending onthe unit nameplate voltage, install the provided jumper on thecontrol terminal 2 to the proper location

Seite 10 - TROUBLESHOOTING

7SIZES032-040FOR 2 SPEED MOTORSCONNECT TO FC-HSCURRENTLIMITERS ANDBRACKET MOUNTINGTO CIRCUIT ATRANSDUCERON LIQUID LINETO NEC FUSEDDISCONNECTPLUG CABLE

Seite 11

8When the system calls for the fan, the fan contactor will beenergized to power the Motormaster® V electronic control. TheLED will display the speed o

Seite 12 - Ta b 5 c

93. Display reads “00” (see Fig. 9). To enter the PROGRAMmode to access the parameters, press the Mode button(see Fig. 9). This will activate the PASS

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