Carrier 30RC 020-060 Variable Speed Fan Control Installation Guide

Carrier 30RC 020-060 Variable Speed Fan Control Installation Guide

30RC 020-060,

38RCS 025-050,

38RCD 025-060

Greenspeed® Variable Speed Fan Control

Installation Instructions

Part No: 30RC70004901, 30RC70005001, 30RC70005101, 30RC70005301, 30RC70005401, 30RC70005501, 30RC70005701, 30RC70005801, 30RC70005901

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Inspect Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Step 1 — Install Wind Baffle Accessory Kit . . . . . . . 6 Step 2 — Mount the VFD . . . . . . . . . . . . . . . . . . . . . . 6 • 20-30 TON UNITS

• 35-60 TON UNITS

Step 3 — Control Panel Wiring . . . . . . . . . . . . . . . . . 7 Step 4 — Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

SAFETY CONSIDERATIONS

Installing, starting up, and servicing air-conditioning equipment can be hazardous due to system pressures, electrical components,  and equipment location.

Only trained, qualified installers and service mechanics should install, start up, and service this equipment.

Untrained personnel can perform basic maintenance functions,  such as cleaning coils. All other operations should be performed by trained service personnel. Qualified installers and service tech nicians are required to have been trained on the following topics when installing and servicing air-conditioning equipment with A2L refrigerant such as R-32:

1. Explosive potential of A2L refrigerants
2. Potential ignition sources
3. Safety measures for unventilated and ventilated rooms or enclosures
4. Refrigerant detectors
5. Concept of sealed components and sealed enclosures according to IEC 60079-15:2010
6. Correct work procedures for the following:
7. Commissioning
8. Maintenance
9. Repair
10. Decommissioning
11. Disposal

See Controls and Troubleshooting Guide for complete guidelines.

When working on the equipment, observe precautions in the literature and on tags, stickers, and labels attached to the equipment.

1. Follow all safety codes.
2. Keep quenching cloth and fire extinguisher nearby when brazing.
3. Wear safety glasses and work gloves.
4. Use care in handling, rigging, and setting bulky equipment.

IMPORTANT: This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with these instructions, may cause radio interference.  It has been tested and found to comply with the limits of a Class A computing device pursuant to International Standard in North America EN 61000-2/3, which are designed to provide reasonable protection against such interference when operated in a commercial environment.

CAUTION

This system uses an A2L refrigerant (R-32) which have higher pressures than R-22 and other refrigerants. No other refrigerant can be used in this system. Failure to use gauge set, hoses, and recovery systems designed to handle refrigerant R-32 may result in equipment damage or personal injury. Refer to Check Refrigerant Circuit section of the 30RC or 38RC chiller installation instructions for guidelines on proper A2L refrigerant handling and equipment used for A2L refrigerant. If unsure about equipment, consult the equipment manufacturer.

WARNING

This product can expose you to chemicals including lead and lead components, which are known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information, go to www.P65Warnings.ca.gov.

WARNING

Electrical shock can cause personal injury and death. Shut off all power to this equipment during installation and service.  There may be more than one disconnect switch. Tag all disconnect locations to alert others not to restore power until work is completed.

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53300279-01 Printed in U.S.A. Form No. 30-6ASI Pg 1 5-24 Replaces: NEW

CAUTION

DO NOT re-use compressor oil or any oil that has been ex posed to the atmosphere. Dispose of oil per local codes and regulations. DO NOT leave refrigerant system open to air any longer than the actual time required to service the equipment.  Seal circuits being serviced and charge with dry nitrogen to prevent oil contamination when timely repairs cannot be com

Table 1 — Greenspeed® Accessory Usage

MODEL/UNIT SIZES

30RC 020-030
30RC 035-050
30RC 055, 060

PART NO. VOLTAGE 30RC70004901

30RC70005001 230 30RC70005101

pleted. Failure to follow these procedures may result in dam

30RC70005301

38RC 025,030

38RC 035-050
38RC 055, 060

age to equipment.

30RC70005401 380/460 30RC70005501

WARNING

30RC70005701

38RC 025,030

38RC 035-050
38RC 055, 060

DO NOT USE TORCH to remove any component. System contains oil and refrigerant under pressure.

To remove a component, wear protective gloves and goggles and proceed as follows:

1. Shut off electrical power to unit.
2. Recover refrigerant to relieve all pressure from system using both high-pressure and low pressure ports. c. Traces of vapor should be displaced with nitrogen and the work area should be well ventilated. Refrigerant in contact with an open flame produces toxic gases. d. Cut component connection tubing with tubing cutter and remove component from unit. Use a pan to catch any oil

30RC70005801 575 30RC70005901

Inspect Shipment

Inspect contents of the accessory package before installing. File a claim with the shipping company if there is shipping damage.  Contact your local Carrier Representative if any parts are missing.  See Table 1 for Greenspeed accessory usage. See Table 2 for VFD Usage and Table 3 for accessory package contents.

Table 2 — VFD Usage

that may come out of the lines and as a gauge for how

30RC/38RC

VOLTAGE

208/230
380
460
575
208/230
380
460
575
208/230
380
460
575
208/230
380
460
575
208/230
380
460
575
208/230
380
460
575
208/230
380
460
575
208/230
380
460
575
208/230
380
460
575

much oil to add to the system.

1. Carefully un-sweat remaining tubing stubs when necessary. Oil can ignite when exposed to torch flame.

UNIT SIZE FAN DRIVE PART NO. HR46ZP007

HR46ZP008

020

Failure to follow these procedures may result in personal inju ry or death.

GENERAL

025

This book contains instructions for the installation of the Greenspeed Variable Speed Fan Control.

The Greenspeed accessory uses a single variable frequency drive 030

(VFD) to control the speed of the condenser fans. All fans will op erate at the same speed. This can reduce energy usage and noise at off design conditions. The VFD is controlled on the unit LEN bus.  The PIC6 controller on the unit monitors all pressure and tempera ture inputs to determine the most efficient and stable fan speed.

035

Typically the fan speed will increase with high ambient tempera ture to reduce head pressure. Opposite is true for lower ambient temperatures.

This accessory will also allow the unit to run down to –20°F ambi ent with the addition of the wind baffle accessory. At low ambient

040

conditions, high winds can have a detrimental effect on head pres sure control. The wind baffles prevent wind from blowing across the condenser coil to alleviate this issue.

045

IMPORTANT: Wind baffles are required for ambient temperatures below 35°F if wind velocity is anticipated to be greater than 5 mph (8 km/h).

050

055

060

HR46ZP008 HR46ZP003 HR46ZP007 HR46ZP008 HR46ZP008 HR46ZP003 HR46ZP007 HR46ZP008 HR46ZP008 HR46ZP003 HR46ZQ001 HR46ZR001 HR46ZR001 HR46ZQ002 HR46ZQ001 HR46ZR001 HR46ZR001 HR46ZQ002 HR46ZQ001 HR46ZR001 HR46ZR001 HR46ZQ002 HR46ZQ001 HR46ZR001 HR46ZR001 HR46ZQ002 HR46ZS001 HR46ZS005 HR46ZS005 HR46ZR003 HR46ZS001 HR46ZS005 HR46ZS005 HR46ZR003

2

Table 3 — Accessory Package Contents

ACCESSORY DESCRIPTION  LEN Cable

Conduit

Drive Mounting Plate

Drive Enclosure

Terminal Block Shroud

Fan (VFD)

OFM-1 Harness (25-60 Ton)

30RC70004901

30RC70005301

30RC70005701

(20-30 Ton)

30RC70005001 (35-50 Ton)

OFM-2 Harness (40-60 Ton)

Low Ambient Harness (10-15 Ton)  No. 8, 1/2 in. long Trilobe

No. 8, 3/4 in. long Trilobe

3 Pole 600-v Terminal Block

Mounting Hardware – Drive (6 mm)  Mounting Hardware – Sheet Metal  Mounting Hardware – 5/16 x 1

Mounting Hardware – Washer

Grill

Instructions

Drive Mounting Plate

Drive Enclosure

RH Side Adapter Plate (35-60 Ton Only)   LH Side Adapter Plate (35-60 Ton Only)  Top Adapter Plate (35-60 Ton Only)   LEN Cable

Conduit

Fan (VFD)

OFM-1 Harness (40-60 Ton)

OFM-2 Harness (40-60 Ton)

OFM-3 Harness (40-60 Ton)

Greenspeed® Harness (230-v, 35-60 Ton)  Class J Quick Blow Fuse (40A 600-v) Class J Fuse Holder (35-60A 600-v)  No. 8, 1/2 in. long Trilobe

1.00 in. Conduit Clamp

1 in. x 12 in. Varnish Cloth

No. 8, 3/4 in. long Trilobe

Terminal Block (3 Pole, 600-v)

Mounting Hardware – Drive (6 mm)  Mounting Hardware – Sheet Metal  Mounting Hardware – 5/16 x 1

Mounting Hardware – Washer

Grill

Instructions

3

Table 3 — Accessory Package Contents (cont)

ACCESSORY DESCRIPTION  Drive Mounting Plate

Drive Enclosure

RH Side Adapter Plate (35-60 Ton Only)

LH Side Adapter Plate (35-60 Ton Only)

Top Adapter Plate (35-60 Ton Only)

LEN Cable

Conduit

Fan (VFD)

OFM-1 Harness (40-60 Ton)

OFM-2 Harness (40-60 Ton)

OFM-3 Harness (40-60 Ton)

30RC70005401,  30RC70005801 (35-50 Ton)

30RC70005101 (55-60 Ton)

Greenspeed® Harness (35-60 Ton)  Class J Quick Blow Fuse 25A 600-v  1-30A 600-v Class J Fuse Holder  No. 8, 1/2 in. long Trilobe

1.00 in. Conduit Clamp

1 in. x 12 in. Varnish Cloth

No. 8, 3/4 in. long Trilobe

Terminal Block (3 Pole 600-v)

Mounting Hardware – Drive (6 mm)  Mounting Hardware – Sheet Metal  Mounting Hardware – 5/16 x 1

Mounting Hardware – Washer

Grill

Instructions

Drive Mounting Plate

Drive Enclosure

RH Side Adapter Plate (35-60 Only)  LH Side Adapter Plate (35-60 Only)  Top Adapter Plate (35-60 Only)

LEN Cable

Conduit

OFM-1 Harness (40-60 Ton)

OFM-2 Harness (40-60 Ton)

OFM-3 Harness (40-60 Ton)

OFM-4 Harness (40-60 Ton)

Greenspeed® Harness (230-v, 35-60 Ton)  Class J Quick Blow Fuse (40A, 600-v) Class J Fuse Holder (35-60A, 600-v)  No. 8, 1/2 in. long Trilobe

1.00 in. Conduit Clamp

1 in. x 12 in. Varnish Cloth

No. 8, 3/4 in. long Trilobe

Terminal Block (3 Pole 600-v)

Mounting Hardware – Drive (6 mm)  Mounting Hardware – Sheet Metal  Mounting Hardware – 5/16 x 1

Mounting Hardware – Washer

Grill

Instructions

4

Table 3 — Accessory Package Contents (cont)

ACCESSORY DESCRIPTION

30RC70005501,  30RC70005901 (55-60 Ton)

Drive Mounting Plate

Drive Enclosure

RH Side Adapter Plate (35-60 Only)  LH Side Adapter Plate (35-60 Only)  Top Adapter Plate (35-60 Only)  LEN Cable

Conduit

OFM-1 Harness (40-60 Ton)

OFM-2 Harness (40-60 Ton)

OFM-3 Harness (40-60 Ton)

OFM-4 Harness (40-60 Ton)

Greenspeed® Harness (35-60 Ton)  Class J Quick Blow Fuse (25A, 600-v)   Class J Fuse Holder (1-30A, 600-v)  No. 8 1/2 in. long Trilobe

1.00 in. Conduit Clamp

1 in. x 12 in. Varnish Cloth

No. 8 3/4 in. long Trilobe

3 Pole 600-v Terminal Block

Mounting Hardware – Drive (6 mm)  Mounting Hardware – Sheet Metal  Mounting Hardware – 5/16 x 1  Mounting Hardware – Washer  Grill

Instructions

5

INSTALLATION

Step 1 — Install Wind Baffle Accessory Kit If the chiller is expected to run in ambient temperatures below 35°F and winds above 5 mph are expected, a wind baffle accesso ry kit is required. See below for part numbers that require the wind baffle accessory kit.

• 30RA-900—065 (sizes 020, 035, 040)
• 30RA-900—066 (sizes 020, 030, 045-060)

NOTE: Unit sizes 035-060 require two kits.

Step 2 — Mount the VFD

Verify the drive nameplate rating versus the unit nameplate rating for correct voltage range. Check the VFD part number from Table 2.

Remove panel on side of unit where VFD will be mounted. This panel can be discarded. See Fig. 1.

Mount VFD to VFD mounting bracket using 6 mm thread form ing screw. Attach drive enclosure to mounting plate using sheet metal screw. See Fig. 2.

Connect 3 conduit assemblies to the 3 holes on the side of the en closure. Conduit nut should be on the inside of the enclosure, to wards the VFD, and conduit should be outside of the enclosure.

30RC 020-030 Size Units

38RC 025-030 Size Units

Place drive inside unit enclosure and mount to unit base. Use 5/16 x 1 screws for VFD mounting plate and sheet metal screw for enclosure. On most units the VFD assembly can be rotated to fit through the VFD opening in the unit side panel. On some of the smaller units where internal piping may interfere with this proce- dure, the side panel of the unit should be removed. If removing the side panel, brace the weight of the control panel to prevent dam age to the center post of the unit. The VFD assembly enclosure will be flush with side panel on 20-30 ton units after mounting. On 35-60 ton units, the enclosure will mount with a 1 in. gap between the enclosure and the side panel.

CAUTION

Internal refrigerant tubing is under high pressure. Do not damage piping while mounting VFD assembly. Serious injury may occur.

20-30 TON UNITS

Fasten drive enclosure to unit side panel using sheet metal screws. 35-60 TON UNITS

Use spacer brackets to mount VFD assembly to unit side panel.  Attach with sheet metal screws. See Fig. 3.

30RC 035-060 Size Units

38RC 040-060 Size Units

Control Panel

Control Panel

Drive Mounting

Plate

Drive Enclosure

VFD Mounting

Position

Fig. 1 — Drive Mounting Location Fan VFD

VFD Mounting

Position

Adapter Plates

Fig. 2 — Drive to Enclosure Assembly Fig. 3 — VFD Assembly to Unit Side Panel (35-60 Ton)

6

Step 3 — Control Panel Wiring

1. Mount fuse block, terminal block, and terminal block cover per panel layout. See Fig. 4 and 5. Wiring for 20-30 ton units will require fuse blocks and fuses that already exist in the panel. Fan contactors may be removed if more panel space is needed. If contactors are removed, remove any power wires attached to them. Control wires may be cut and terminated to assure they cannot ground to panel.
2. Replace fan motor cables with cables supplied. Connect con trol box end to VFD terminal block installed in “Mount the VFD” on page 6. See Fig. 6 for identification of fan motor designations. Use wire ties to secure fan wire routing. At fan motor, ensure a drip loop is created when routing the wire to the motor. See Fig. 7.
3. Install Greenspeed harness between control panel and VFD.  This consists of two cables. One cable takes power from the
4. Install communication cable (LEN) between control panel and VFD. Connect per markings on the harness. Ground the shield at the VFD. Do not ground it in the control panel. Do not run communication cable with power wires to the VFD.  This could cause interference with the communication signal. 5. Install fuses into fuse block. See Table 4.

Table 4 — Fuse Replacement

FUSE REPLACEMENT TABLE FOR FB1/FB2

380
460
575
208/230| LP-CC-20
380
460
575
208/230| FNQ-R-30
380| FNQ-R-20
460| FNQ-R-17-1/2
575| FNQ-R-15

UNIT SIZE FUSE BLOCK 020-030

VFD fuse block to the drive input, L1/L2/L3. The other cable takes power from the drive output (U/V/W), to the VFD ter minal block to power the fans. Route cables through conduit sections at VFD enclosure.

Cooler Heater and

Reverse Rotation

035-050

055-060

VFD Fuse Blocks

FB1/FB2

| | | | |
| | | | |
| | | | |
| C| | | |
| | | | |
| | | | |
| | | | |

Power Input

CIOB Stack Location (1 or 2)

Auxillary

Board

LEGEND

CB — Circuit Breaker

CCN — Carrier Comfort Network CHR — Evaporator Heater Relay CIOB — Carrier Input/Output Board FB — Fuse Block

FC — Fan Contactor

Remote Connectivity

FU — Fuse

RRB — Reverse Rotation Board/Phase Monitor TRAN — Transformer

TB — Terminal Block

SW — Switch

VFD Terminal Block

Fig. 4 — Control Panel Layout (20-30 Ton)

7

VFD Fuse Blocks

Main Box

Transformer

(Compressors) Low Ambient

Remote

Connectivity

Auxilliary

Display CIOB

(Stack of 3)

CHR

Main Box

(Compressors) RRB Power Input

| |
---|---|---

| |
---|---|---
| |
|

| |
---|---|---

| |
---|---|---
|

| | | | | | | | | | |
---|---|---|---|---|---|---|---|---|---|---|---
| | | | | | | | | |
| | | | | | | | | | |
| | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | | |

| |
---|---|---
| |
| |
|
|
|
|
|
|
|
|
|

| | |
---|---|---|---

|
---|---
|
|

|
---|---
| | | |
| | |
| | | |
| | | |

|
|
|
|
|
|
|

|
---|---
|
|
|
|
|

| |
---|---|---

| |
---|---|---
| |
| |

| | | | |
---|---|---|---|---|---
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |

|
---|---
|
|
|
|

| |
---|---|---
| |
| |
| |
| |

VFD Terminal

Block

LEGEND

CCN — Carrier Comfort Network

CB — Circuit Breaker

CIOB — Carrier Input/Output

CHR — Evaporator Heater Relay

RRB — Reverse Rotation Board/Phase Monitor

VFD — Variable Frequency Drive

Pumps 2 x 30 Position TB

CCN Board

2 x TB From Main Harness

2 x Switch

4 x 5 Amp CB

| | | | | |
---|---|---|---|---|---|---

Control Box

OFM1 OFM2

Fig. 5 — Control Panel Layout (35-60 Ton)

Wire

(To Fan Motor)

Wire Tie

|
---|---
|
|

Conduit

(From Control Box)

Top View

Sizes 020-030

OFM1 OFM1 Control Box

Control Box

OFM3

Drip loop to prevent water

entering into the conduit and

then to the control box.

OFM3

OFM2

Fig. 7 — Fan Motor Wiring Connection Routing

OFM2 OFM4

Top View Top View Sizes 035-050 Sizes 055, 060

Fig. 6 — Condenser Fan Layout

8

Step 4 — Setup

Once all wiring is terminated and all covers are back in place,

power unit. See Fig. 8-10.

Set the address on the variable frequency drive (VFD) to 184. (Pa- rameter 8-31 = 184) This will allow the controller to send correct

operating parameters to the VFD. See Fig. 9.

|
---|---
|

At the PIC6 controller, configure the unit for Greenspeed control.

( MainMenu → Configuration → Factory → _vfansel =1).

NOTE: This will require a reboot of the controller.

IMPORTANT: The control power must be cycled with the correct VFD address and correct controller configuration before the variable speed fans will operate.

In the controller menu go to Quick Test1 ( MainMenu → Quick

|
---|---
|

Test1 ). Enable the quick test menu. Scroll down to Q-VFAN. En

ter 50 to drive fans to 50%. Fans should start and run at 30 Hz.

This confirms the fan VFD is operational. Enter 0 for Q-VFAN

and disable quick test. See Fig. 8.

Install grill over VFD opening. Unit is now ready for operation.

|
---|---
|
|

| |
---|---|---
| |
| |

| |
| |
| |
|

| |
---|---|---
| |

Fig. 8 — Fan Motor Power Wiring

NOTE: Address for FVFD is 184 (Parameter 8-31)Fig. 9 — LEN BUS Wiring

9

| | | | | |
---|---|---|---|---|---|---
| | | |
| | |
| | | | | |
| | | | | |

|
---|---

|
---|---

|
---|---

|
---|---
|
|
|

|
---|---

|
---|---
|
|

|
---|---

| |
---|---|---

| | | | | | | | | | | | | | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---
| | | | | | | | | | | | | |
| | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | | | | | |
| | | | | | | | | | | | | |
| | | | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | | | | |
| | | | | | | | | | | | | |
| | | | | | | | | | | | |
| | | | | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | |

| |
---|---|---
|
|

| |
---|---|---

| |
| |
| |
|

| | | | | |
---|---|---|---|---|---|---
| | | | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | | |
| | | | | |

| | | | | | | | | |
---|---|---|---|---|---|---|---|---|---|---
| | | | | | |
| | | | | | |
| | | | | |
| | | | | |
| | | | | | |

|
---|---

|

|
---|---

Fig. 10 — 30RC 010-060 Power Schematic

10

© 2024 Carrier

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53300279-01 Printed in U.S.A. Form No. 30-6ASI Pg 12 5-24 Replaces: NEW

30RC 020-060 Variable Speed Fan Control

Product Information

Specifications

• Models: 30RC 020-060, 38RCS 025-050

• Part Numbers: 30RC70004901, 30RC70005001, 30RC70005101,
  30RC70005301, 30RC70005401, 30RC70005501, 30RC70005701,
  30RC70005801, 30RC70005901

• Catalog No.: 04-53300279-01

• Printed in: U.S.A.

• Form No.: 30-6ASI

Product Usage Instructions

Safety Considerations

1. Follow all safety codes.

2. Keep quenching cloth and fire extinguisher nearby when
   brazing.

3. Wear safety glasses and work gloves.

4. Use care in handling, rigging, and setting bulky
   equipment.

5. Observe precautions in the literature and on tags, stickers,
   and labels attached to the equipment.

Installation and Service

1. Shut off all power to the equipment during installation and
   service.

2. Tag all disconnect locations to alert others not to restore
   power until work is completed.

3. Dispose of compressor oil properly per local codes and
   regulations.

4. Do not leave refrigerant system open to air longer than
   necessary.

Component Removal

1. Shut off electrical power to the unit.

2. Recover refrigerant from the system using high-pressure and
   low-pressure ports.

3. Displace traces of vapor with nitrogen in a well-ventilated
   area.

4. Wear protective gloves and goggles to remove components.

5. Cut component connection tubing with a tubing cutter and remove
   the component from the unit.

FAQ (Frequently Asked Questions)

Q: What should I do if I encounter a warning about lead

exposure?

A: If you encounter a warning about lead exposure, refer to
www.P65Warnings.ca.gov for more information and take necessary
precautions to minimize exposure.

Q: How should I handle disposing of compressor oil?

A: Dispose of compressor oil per local codes and regulations to
ensure proper handling and environmental protection.

30RC 020-060,
38RCS 025-050,
38RCD 025-060 Greenspeed® Variable Speed Fan Control

Installation Instructions
Part No: 30RC70004901, 30RC70005001, 30RC70005101, 30RC70005301, 30RC70005401, 30RC70005501, 30RC70005701, 30RC70005801, 30RC70005901

CONTENTS
Page SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Inspect Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Step 1 — Install Wind Baffle Accessory Kit . . . . . . . 6 Step 2 — Mount the VFD . . . . . . . . . . . . . . . . . . . . . . 6 · 20-30 TON UNITS · 35-60 TON UNITS Step 3 — Control Panel Wiring . . . . . . . . . . . . . . . . . 7 Step 4 — Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
SAFETY CONSIDERATIONS
Installing, starting up, and servicing air-conditioning equipment can be hazardous due to system pressures, electrical components, and equipment location. Only trained, qualified installers and service mechanics should install, start up, and service this equipment. Untrained personnel can perform basic maintenance functions, such as cleaning coils. All other operations should be performed by trained service personnel. Qualified installers and service technicians are required to have been trained on the following topics when installing and servicing air-conditioning equipment with A2L refrigerant such as R-32: 1. Explosive potential of A2L refrigerants 2. Potential ignition sources
3. Safety measures for unventilated and ventilated rooms or enclosures
4. Refrigerant detectors
5. Concept of sealed components and sealed enclosures according to IEC 60079-15:2010
6. Correct work procedures for the following:
a. Commissioning b. Maintenance c. Repair d. Decommissioning e. Disposal See Controls and Troubleshooting Guide for complete guidelines.

When working on the equipment, observe precautions in the literature and on tags, stickers, and labels attached to the equipment. 1. Follow all safety codes. 2. Keep quenching cloth and fire extinguisher nearby when
brazing. 3. Wear safety glasses and work gloves. 4. Use care in handling, rigging, and setting bulky equipment.
IMPORTANT: This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with these instructions, may cause radio interference. It has been tested and found to comply with the limits of a Class A computing device pursuant to International Standard in North America EN 61000-2/3, which are designed to provide reasonable protection against such interference when operated in a commercial environment.
CAUTION
This system uses an A2L refrigerant (R-32) which have higher pressures than R-22 and other refrigerants. No other refrigerant can be used in this system. Failure to use gauge set, hoses, and recovery systems designed to handle refrigerant R-32 may result in equipment damage or personal injury. Refer to Check Refrigerant Circuit section of the 30RC or 38RC chiller installation instructions for guidelines on proper A2L refrigerant handling and equipment used for A2L refrigerant. If unsure about equipment, consult the equipment manufacturer.
WARNING
This product can expose you to chemicals including lead and lead components, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
WARNING
Electrical shock can cause personal injury and death. Shut off all power to this equipment during installation and service. There may be more than one disconnect switch. Tag all disconnect locations to alert others not to restore power until work is completed.

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

Catalog No. 04-53300279-01

Printed in U.S.A.

Form No. 30-6ASI

Pg 1

5-24

Replaces: NEW

CAUTION
DO NOT re-use compressor oil or any oil that has been exposed to the atmosphere. Dispose of oil per local codes and regulations. DO NOT leave refrigerant system open to air any longer than the actual time required to service the equipment. Seal circuits being serviced and charge with dry nitrogen to prevent oil contamination when timely repairs cannot be completed. Failure to follow these procedures may result in damage to equipment.
WARNING
DO NOT USE TORCH to remove any component. System contains oil and refrigerant under pressure.
To remove a component, wear protective gloves and goggles and proceed as follows:
a. Shut off electrical power to unit.
b. Recover refrigerant to relieve all pressure from system using both high- pressure and low pressure ports.
c. Traces of vapor should be displaced with nitrogen and the work area should be well ventilated. Refrigerant in contact with an open flame produces toxic gases.
d. Cut component connection tubing with tubing cutter and remove component from unit. Use a pan to catch any oil that may come out of the lines and as a gauge for how much oil to add to the system.
e. Carefully un-sweat remaining tubing stubs when necessary. Oil can ignite when exposed to torch flame.
Failure to follow these procedures may result in personal injury or death.
GENERAL
This book contains instructions for the installation of the Greenspeed Variable Speed Fan Control.
The Greenspeed accessory uses a single variable frequency drive (VFD) to control the speed of the condenser fans. All fans will operate at the same speed. This can reduce energy usage and noise at off design conditions. The VFD is controlled on the unit LEN bus. The PIC6 controller on the unit monitors all pressure and temperature inputs to determine the most efficient and stable fan speed. Typically the fan speed will increase with high ambient temperature to reduce head pressure. Opposite is true for lower ambient temperatures.
This accessory will also allow the unit to run down to ­20°F ambient with the addition of the wind baffle accessory. At low ambient conditions, high winds can have a detrimental effect on head pressure control. The wind baffles prevent wind from blowing across the condenser coil to alleviate this issue.
IMPORTANT: Wind baffles are required for ambient temperatures below 35°F if wind velocity is anticipated to be greater than 5 mph (8 km/h).

Table 1 — Greenspeed® Accessory Usage

PART NO. 30RC70004901 30RC70005001 30RC70005101

MODEL/UNIT SIZES 30RC 020-030 30RC 035-050 30RC 055, 060

VOLTAGE 230

30RC70005301 30RC70005401 30RC70005501

38RC 025,030 38RC 035-050 38RC 055, 060

380/460

30RC70005701

38RC 025,030

30RC70005801

38RC 035-050

575

30RC70005901

38RC 055, 060

Inspect Shipment
Inspect contents of the accessory package before installing. File a claim with the shipping company if there is shipping damage. Contact your local Carrier Representative if any parts are missing. See Table 1 for Greenspeed accessory usage. See Table 2 for VFD Usage and Table 3 for accessory package contents.

30RC/38RC UNIT SIZE
020 025 030 035 040 045 050 055 060

Table 2 — VFD Usage

VOLTAGE
208/230 380 460 575
208/230 380 460 575
208/230 380 460 575
208/230 380 460 575
208/230 380 460 575
208/230 380 460 575
208/230 380 460 575
208/230 380 460 575
208/230 380 460 575

FAN DRIVE PART NO.
HR46ZP007 HR46ZP008 HR46ZP008 HR46ZP003 HR46ZP007 HR46ZP008 HR46ZP008 HR46ZP003 HR46ZP007 HR46ZP008 HR46ZP008 HR46ZP003 HR46ZQ001 HR46ZR001 HR46ZR001 HR46ZQ002 HR46ZQ001 HR46ZR001 HR46ZR001 HR46ZQ002 HR46ZQ001 HR46ZR001 HR46ZR001 HR46ZQ002 HR46ZQ001 HR46ZR001 HR46ZR001 HR46ZQ002 HR46ZS001 HR46ZS005 HR46ZS005 HR46ZR003 HR46ZS001 HR46ZS005 HR46ZS005 HR46ZR003

2

ACCESSORY
30RC70004901 30RC70005301 30RC70005701 (20-30 Ton)
30RC70005001 (35-50 Ton)

Table 3 — Accessory Package Contents

VOLTAGE 230/380/460/575
230

PART NUMBER 30RCHSCALXCA10
38AP404952 38AP504900 38AP504273 38APMACBFG-A00 See Table 2. 38APHLSBF1-A00 38APHLSSF2-A00 38APHSCSFV-A01 AL04AU166 AL01AU168 HY84DA022 00PPN500000302A AL56ZA003 AA06BR200 AU02AB202 38AP504929
30-6ASI 38AP504954 38AP504972 2004592371 2004606726 2004590453 30RCHSCALXCA30 38AP404952 See Table 2. 38APHLSBF1-A00 38APHLSSF2-A00 38APHLSMF3-A00 38APHSCSFV-A21 HY10JK040
JT60060 AL04AU166 HW60HH006 38APPAAAAA-A00 AL01AU168 HY84DA022 00PPN500000302A AL56ZA003 AA06BR200 AU02AB202 38AP504929
30-6ASI

QTY 1 3 1 1 1 1 1 1 1 4 2 1 6 30 6 6 1 1 1 1 1 1 1 1 3 1 1 1 1 1 3 3 4 1 1 2 1 6 35 6 6 1 1

DESCRIPTION LEN Cable Conduit Drive Mounting Plate Drive Enclosure Terminal Block Shroud Fan (VFD) OFM-1 Harness (25-60 Ton) OFM-2 Harness (40-60 Ton) Low Ambient Harness (10-15 Ton) No. 8, 1/2 in. long Trilobe No. 8, 3/4 in. long Trilobe 3 Pole 600-v Terminal Block Mounting Hardware – Drive (6 mm) Mounting Hardware – Sheet Metal Mounting Hardware – 5/16 x 1 Mounting Hardware – Washer Grill Instructions Drive Mounting Plate Drive Enclosure RH Side Adapter Plate (35-60 Ton Only) LH Side Adapter Plate (35-60 Ton Only) Top Adapter Plate (35-60 Ton Only) LEN Cable Conduit Fan (VFD) OFM-1 Harness (40-60 Ton) OFM-2 Harness (40-60 Ton) OFM-3 Harness (40-60 Ton) Greenspeed® Harness (230-v, 35-60 Ton) Class J Quick Blow Fuse (40A 600-v) Class J Fuse Holder (35-60A 600-v) No. 8, 1/2 in. long Trilobe 1.00 in. Conduit Clamp 1 in. x 12 in. Varnish Cloth No. 8, 3/4 in. long Trilobe Terminal Block (3 Pole, 600-v) Mounting Hardware – Drive (6 mm) Mounting Hardware – Sheet Metal Mounting Hardware – 5/16 x 1 Mounting Hardware – Washer Grill Instructions

3

ACCESSORY
30RC70005401, 30RC70005801 (35-50 Ton)
30RC70005101 (55-60 Ton)

Table 3 — Accessory Package Contents (cont)

VOLTAGE 460/380/575
230

PART NUMBER 38AP504954 38AP504972 2004592371 2004606726 2004590453
30RCHSCALXCA30 38AP404952 See Table 2.
38APHLSBF1-A00 38APHLSSF2-A00 38APHLSMF3-A00 38APHSCSFV-A11
HY10JK025 JT60030
AL04AU166 HW60HH006 38APPAAAAA-A00 AL01AU168 HY84DA022 00PPN500000302A AL56ZA003 AA06BR200 AU02AB202 38AP504929
30-6ASI 38AP504954 38AP504972 2004592371 2004606726 2004590453 30RCHSCALXCA30 38AP404952 38APHLSBF1-A00 38APHLSSF2-A00 38APHLSMF3-A00 38APHLSMF4-A00 38APHSCSFV-A21 HY10JK040
JT60060 AL04AU166 HW60HH006 38APPAAAAA-A00 AL01AU168 HY84DA022 00PPN500000302A AL56ZA003 AA06BR200 AU02AB202 38AP504929
30-6ASI

QTY 1 1 1 1 1 1 3 1 1 1 1 1 3 3 4 1 1 2 1 6 35 6 6 1 1 1 1 1 1 1 1 3 1 1 1 1 1 3 3 4 1 1 2 1 6 35 6 6 1 1

DESCRIPTION Drive Mounting Plate Drive Enclosure RH Side Adapter Plate (35-60 Ton Only) LH Side Adapter Plate (35-60 Ton Only) Top Adapter Plate (35-60 Ton Only) LEN Cable Conduit Fan (VFD) OFM-1 Harness (40-60 Ton) OFM-2 Harness (40-60 Ton) OFM-3 Harness (40-60 Ton) Greenspeed® Harness (35-60 Ton) Class J Quick Blow Fuse 25A 600-v 1-30A 600-v Class J Fuse Holder No. 8, 1/2 in. long Trilobe 1.00 in. Conduit Clamp 1 in. x 12 in. Varnish Cloth No. 8, 3/4 in. long Trilobe Terminal Block (3 Pole 600-v) Mounting Hardware – Drive (6 mm) Mounting Hardware – Sheet Metal Mounting Hardware – 5/16 x 1 Mounting Hardware – Washer Grill Instructions Drive Mounting Plate Drive Enclosure RH Side Adapter Plate (35-60 Only) LH Side Adapter Plate (35-60 Only) Top Adapter Plate (35-60 Only) LEN Cable Conduit OFM-1 Harness (40-60 Ton) OFM-2 Harness (40-60 Ton) OFM-3 Harness (40-60 Ton) OFM-4 Harness (40-60 Ton) Greenspeed® Harness (230-v, 35-60 Ton) Class J Quick Blow Fuse (40A, 600-v) Class J Fuse Holder (35-60A, 600-v) No. 8, 1/2 in. long Trilobe 1.00 in. Conduit Clamp 1 in. x 12 in. Varnish Cloth No. 8, 3/4 in. long Trilobe Terminal Block (3 Pole 600-v) Mounting Hardware – Drive (6 mm) Mounting Hardware – Sheet Metal Mounting Hardware – 5/16 x 1 Mounting Hardware – Washer Grill Instructions

4

ACCESSORY
30RC70005501, 30RC70005901 (55-60 Ton)

Table 3 — Accessory Package Contents (cont)

VOLTAGE 460/380/575

PART NUMBER 38AP504954 38AP504972 2004592371 2004606726 2004590453
30RCHSCALXCA30 38AP404952
38APHLSBF1-A00 38APHLSSF2-A00 38APHLSMF3-A00 38APHLSMF4-A00 38APHSCSFV-A11
HY10JK025 JT60030
AL04AU166 HW60HH006 38APPAAAAA-A00 AL01AU168 HY84DA022 00PPN500000302A AL56ZA003 AA06BR200 AU02AB202 38AP504929
30-6ASI

QTY 1 1 1 1 1 1 3 1 1 1 1 1 3 3 4 1 1 2 1 6 35 6 6 1 1

DESCRIPTION Drive Mounting Plate Drive Enclosure RH Side Adapter Plate (35-60 Only) LH Side Adapter Plate (35-60 Only) Top Adapter Plate (35-60 Only) LEN Cable Conduit OFM-1 Harness (40-60 Ton) OFM-2 Harness (40-60 Ton) OFM-3 Harness (40-60 Ton) OFM-4 Harness (40-60 Ton) Greenspeed® Harness (35-60 Ton) Class J Quick Blow Fuse (25A, 600-v) Class J Fuse Holder (1-30A, 600-v) No. 8 1/2 in. long Trilobe 1.00 in. Conduit Clamp 1 in. x 12 in. Varnish Cloth No. 8 3/4 in. long Trilobe 3 Pole 600-v Terminal Block Mounting Hardware – Drive (6 mm) Mounting Hardware – Sheet Metal Mounting Hardware – 5/16 x 1 Mounting Hardware – Washer Grill Instructions

5

INSTALLATION
Step 1 — Install Wind Baffle Accessory Kit
If the chiller is expected to run in ambient temperatures below 35°F and winds above 5 mph are expected, a wind baffle accessory kit is required. See below for part numbers that require the wind baffle accessory kit. · 30RA-900—065 (sizes 020, 035, 040) · 30RA-900—066 (sizes 020, 030, 045-060) NOTE: Unit sizes 035-060 require two kits.
Step 2 — Mount the VFD
Verify the drive nameplate rating versus the unit nameplate rating for correct voltage range. Check the VFD part number from Table 2. Remove panel on side of unit where VFD will be mounted. This panel can be discarded. See Fig. 1. Mount VFD to VFD mounting bracket using 6 mm thread forming screw. Attach drive enclosure to mounting plate using sheet metal screw. See Fig. 2. Connect 3 conduit assemblies to the 3 holes on the side of the enclosure. Conduit nut should be on the inside of the enclosure, towards the VFD, and conduit should be outside of the enclosure.
30RC 020-030 Size Units
38RC 025-030 Size Units

Place drive inside unit enclosure and mount to unit base. Use 5/16 x 1 screws for VFD mounting plate and sheet metal screw for enclosure. On most units the VFD assembly can be rotated to fit through the VFD opening in the unit side panel. On some of the smaller units where internal piping may interfere with this procedure, the side panel of the unit should be removed. If removing the side panel, brace the weight of the control panel to prevent damage to the center post of the unit. The VFD assembly enclosure will be flush with side panel on 20-30 ton units after mounting. On 35-60 ton units, the enclosure will mount with a 1 in. gap between the enclosure and the side panel.
CAUTION
Internal refrigerant tubing is under high pressure. Do not damage piping while mounting VFD assembly. Serious injury may occur.
20-30 TON UNITS Fasten drive enclosure to unit side panel using sheet metal screws.
35-60 TON UNITS Use spacer brackets to mount VFD assembly to unit side panel. Attach with sheet metal screws. See Fig. 3.
30RC 035-060 Size Units 38RC 040-060 Size Units

Control Panel

Control Panel
VFD Mounting Position
Fig. 1 — Drive Mounting Location

VFD Mounting Position

Drive Mounting Plate

Fan VFD

Adapter Plates

Drive Enclosure
Fig. 2 — Drive to Enclosure Assembly

Fig. 3 — VFD Assembly to Unit Side Panel (35-60 Ton)
6

Step 3 — Control Panel Wiring
1. Mount fuse block, terminal block, and terminal block cover per panel layout. See Fig. 4 and 5. Wiring for 20-30 ton units will require fuse blocks and fuses that already exist in the panel. Fan contactors may be removed if more panel space is needed. If contactors are removed, remove any power wires attached to them. Control wires may be cut and terminated to assure they cannot ground to panel.
2. Replace fan motor cables with cables supplied. Connect control box end to VFD terminal block installed in “Mount the VFD” on page 6. See Fig. 6 for identification of fan motor designations. Use wire ties to secure fan wire routing. At fan motor, ensure a drip loop is created when routing the wire to the motor. See Fig. 7.
3. Install Greenspeed harness between control panel and VFD. This consists of two cables. One cable takes power from the VFD fuse block to the drive input, L1/L2/L3. The other cable takes power from the drive output (U/V/W), to the VFD terminal block to power the fans. Route cables through conduit sections at VFD enclosure.
Cooler Heater and Reverse Rotation

4. Install communication cable (LEN) between control panel and VFD. Connect per markings on the harness. Ground the shield at the VFD. Do not ground it in the control panel. Do not run communication cable with power wires to the VFD. This could cause interference with the communication signal.
5. Install fuses into fuse block. See Table 4.

Table 4 — Fuse Replacement

FUSE REPLACEMENT TABLE FOR FB1/FB2

UNIT SIZE

VOLTAGE

FUSE

FUSE BLOCK

208/230

380

020-030

460

LP-CC-20

575

208/230

380 035-050
460

LP-CC-20

FB1/FB2

575

208/230

FNQ-R-30

055-060

380

FNQ-R-20

460

FNQ-R-17-1/2

575

FNQ-R-15

VFD Fuse Blocks

CIOB Stack

(1 or 2)

C

Auxillary Board

LEGEND

CB — CCN — CHR — CIOB — FB — FC —

Circuit Breaker Carrier Comfort Network Evaporator Heater Relay Carrier Input/Output Board Fuse Block Fan Contactor

Remote Connectivity

VFD Terminal Block

FU — Fuse RRB — Reverse Rotation Board/Phase Monitor TRAN — Transformer TB — Terminal Block SW — Switch

Fig. 4 — Control Panel Layout (20-30 Ton)

7

Power Input Location

Transformer

Main Box (Compressors)

VFD Fuse Blocks

Low Ambient
Remote Connectivity

Auxilliary Display

CIOB (Stack of 3)
CHR

Main Box (Compressors)
RRB

Power Input

LEGEND

VFD Terminal Block

CCN — Carrier Comfort Network CB — Circuit Breaker CIOB — Carrier Input/Output CHR — Evaporator Heater Relay RRB — Reverse Rotation Board/Phase Monitor VFD — Variable Frequency Drive

2 x 30 Position TB
CCN Board 2 x TB From Main Harness 2 x Switch
4 x 5 Amp CB

Fig. 5 — Control Panel Layout (35-60 Ton)

Pumps

OFM1

Wire (To Fan Motor)
Wire Tie

Control Box

OFM2
Top View Sizes 020-030

Conduit (From Control Box)

Control Box Control Box

OFM1 OFM3
OFM2

OFM1 OFM3 OFM2 OFM4

Top View Sizes 035-050

Top View Sizes 055, 060

Fig. 6 — Condenser Fan Layout

Drip loop to prevent water entering into the conduit and then to the control box.
Fig. 7 — Fan Motor Wiring Connection Routing

8

Step 4 — Setup
Once all wiring is terminated and all covers are back in place, power unit. See Fig. 8-10.
Set the address on the variable frequency drive (VFD) to 184. (Parameter 8-31 = 184) This will allow the controller to send correct operating parameters to the VFD. See Fig. 9.
At the PIC6 controller, configure the unit for Greenspeed control. (MainMenuConfigurationFactoryvfan_sel =1). NOTE: This will require a reboot of the controller.
IMPORTANT: The control power must be cycled with the correct VFD address and correct controller configuration before the variable speed fans will operate.
In the controller menu go to Quick Test1 (MainMenuQuick Test1). Enable the quick test menu. Scroll down to Q-VFAN. Enter 50 to drive fans to 50%. Fans should start and run at 30 Hz. This confirms the fan VFD is operational. Enter 0 for Q-VFAN and disable quick test. See Fig. 8.
Install grill over VFD opening. Unit is now ready for operation.

Fig. 8 — Fan Motor Power Wiring

NOTE: Address for FVFD is 184 (Parameter 8-31)
Fig. 9 — LEN BUS Wiring

9

Fig. 10 — 30RC 010-060 Power Schematic 10

© 2024 Carrier

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

Catalog No. 04-53300279-01

Printed in U.S.A.

Form No. 30-6ASI

Pg 12

5-24

Replaces: NEW

References

• P65Warnings.ca.gov

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>