Greenheck Fan LFC User Manual

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Part #464496

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Low-Profile Fan Coil

Installation, Operation and Maintenance Manual

Installation, Operation and Maintenance Manual

Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the

Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the
product described. Protect yourself and others by observing all safety information. Failure to comply with instructions

product described. Protect yourself and others by observing all safety information. Failure to comply with instructions
could result in personal injury and/or property damage! Retain instructions for future reference.

could result in personal injury and/or property damage! Retain instructions for future reference.

Model LFC

General Safety Information

Only qualified personnel should install this unit.
Personnel should have a clear understanding of these
instructions and should be aware of general safety
precautions. Improper installation can result in electric
shock, possible injury due to coming in contact with
moving parts, as well as other potential hazards.
Other considerations may be required if high winds
or seismic activity are present. If more information
is needed, contact a licensed professional engineer
before moving forward.

1. Follow all local electrical and safety codes, as
well as the National Electrical Code (NEC), the
National Fire Protection Agency (NFPA), where
applicable. Follow the Canadian Electric Code
(CEC) in Canada.

DANGER

Always disconnect power before working on or
near a unit. Lock and tag the disconnect switch or
breaker to prevent accidental power up.

CAUTION

2. The rotation of the wheel is critical. It must be
free to rotate without striking or rubbing any
stationary objects.

3. Motor must be securely and adequately
grounded.

4. Do not spin fan wheel faster than the maximum
cataloged fan rpm. Adjustments to fan speed
significantly affects motor load. If the fan RPM is
changed, the motor current should be checked
to make sure it is not exceeding the motor
nameplate amps.

5. Do not allow the power cable to kink or come
in contact with oil, grease, hot surfaces,
or chemicals. Replace cord immediately if
damaged.

6. Verify that the power source is compatible with
the equipment.

7. Never open blower access doors while the fan is
running.

When servicing the unit, motor may be hot enough
to cause pain or injury. Allow motor to cool before
servicing.

Model LFC Low-Profile Fan Coil

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Receiving

Upon receiving the product, check to make sure
all items are accounted for by referencing the bill
of lading to ensure all items were received. Inspect
each crate for shipping damage before accepting
delivery. Notify the carrier if any damage is noticed.
The carrier will make notification on the delivery
receipt acknowledging any damage to the product.
All damage should be noted on all the copies of the
bill of lading which is countersigned by the delivering
carrier. A Carrier Inspection Report should be filled
out by the carrier upon arrival and reported to the
Traffic Department. If damaged upon arrival, file claim
with carrier. Any physical damage to the unit after
acceptance is not the responsibility of Greenheck Fan
Corporation.

Unpacking

Verify that all required parts and the correct quantity
of each item have been received. If any items are
missing, report shortages to your local representative
to arrange for obtaining missing parts. Sometimes it
is not possible that all items for the unit be shipped
together due to availability of transportation and truck
space. Confirmation of shipment(s) must be limited to
only items on the bill of lading.

Handling

Units are to be rigged and moved by the lifting
brackets provided or by the skid when a forklift is
used. Location of brackets varies by model and size.
Handle in such a manner as to keep from scratching
or chipping the coating. Damaged finish may reduce
ability of unit to resist corrosion.

Storage

Units are protected against damage during shipment.
If the unit cannot be installed and operated
immediately, precautions need to be taken to
prevent deterioration of the unit during storage.
The user assumes responsibility of the unit and
accessories while in storage. The manufacturer will
not be responsible for damage during storage. These
suggestions are provided solely as a convenience to
the user.

INDOOR — The ideal environment for the storage of

units and accessories is indoors, above grade, in a
low humidity atmosphere which is sealed to prevent
the entry of blowing dust, rain, or snow. Temperatures
should be evenly maintained between 30°F (-1°C) and
110°F (43°C) (wide temperature swings may cause
condensation and “sweating” of metal parts). All
accessories must be stored indoors in a clean, dry
atmosphere.

Remove any accumulations of dirt, water, ice, or snow
and wipe dry before moving to indoor storage. To
avoid “sweating” of metal parts allow cold parts to
reach room temperature. To dry parts and packages
use a portable electric heater to get rid of any
moisture build up. Leave coverings loose to permit air
circulation and to allow for periodic inspection.

Model LFC Low-Profile Fan Coil

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The unit should be stored at least 3½ in. (89 mm) off
the floor on wooden blocks covered with moisture
proof paper or polyethylene sheathing. Aisles between
parts and along all walls should be provided to permit
air circulation and space for inspection.

Inspection and Maintenance during Storage

While in storage, inspect fans once per month. Keep a
record of inspection and maintenance performed.

If moisture or dirt accumulations are found on parts,
the source should be located and eliminated. At each
inspection, rotate the fan wheel by hand ten to fifteen
revolutions to distribute lubricant on motor. Every
three months, the fan motor should be energized. If
paint deterioration begins, consideration should be
given to touch-up or repainting. Fans with special
coatings may require special techniques for touch-up
or repair.

Machined parts coated with rust preventive should
be restored to good condition promptly if signs of
rust occur. Immediately remove the original rust
preventive coating with petroleum solvent and clean
with lint-free cloths. Polish any remaining rust from
surface with crocus cloth or fine emery paper and oil.
Do not destroy the continuity of the surfaces. Wipe
thoroughly clean with Tectyl® 506 (Ashland Inc.) or
the equivalent. For hard to reach internal surfaces or
for occasional use, consider using Tectyl® 511M Rust
Preventive or WD-40® or the equivalent.

REMOVING FROM STORAGE — As units are removed

from storage to be installed in their final location,
they should be protected and maintained in a similar
fashion, until the equipment goes into operation.

Prior to installing the unit and system components,
inspect the unit assembly to make sure it is in working
order.

1. Check all fasteners, set screws on the fan,
wheel, bearings, drive, motor base, and
accessories for tightness.

2. Rotate the fan wheel(s) by hand and assure no
parts are rubbing.

Service Clearance

Units require service clearance for:

• lterreplacement

• coilanddrainpaninspection-cleaning,and

replacement

• motoranddriveinspection-maintenanceand

replacement

Access panels are provided for inspection and
cleaning of unit components. Allow service clearance
of 26 inches for removal of filters. Allow a service
clearance equal to the unit width for removal of coils
and drain pan.

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Table of Contents

Installation

Unit Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Lifting / Hanging Instructions ................ 3

Dimensions / Weights ...................... 4

Filter Sizes / Quantity . . . . . . . . . . . . . . . . . . . . . . 4

Coil Dimensions . . . . . . . . . . . . . . . . . . . . . . . . .5-6

Start-Up

System Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Troubleshooting

Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Motor Overamps .......................... 8

Insufficient / Too Much Airflow ............... 8

Excessive Noise or Vibration . . . . . . . . . . . . . . . . 8

Start-Up

Coil Module ............................9-10

Drain Pan / Drain Trap . . . . . . . . . . . . . . . . . . . . 10

Maintenance

Fan .................................... 11

Coil .................................... 12

Drain Pan ............................... 12

Reference

Start-Up Documentation ................... 12

Maintenance Log . . . . . . . . . . . . . . . . . . . . . .13-15

Warranty . . . . . . . . . . . . . . . . . . . . . . . . .Backcover

Lifting Instructions

Greenheck’s Low-Profile Fan Coil (LFC) should be
lifted by the factory supplied lifting lugs or frame rails
and a spreader bar (by others) to prevent damage
from occurring to the equipment (see Figure 1). Avoid
twisting or uneven lifting of equipment. Do not lift
equipment by coil connections or headers. The unit
must remain upright during lifting. All access doors
and panels must be closed during lifting to avoid
damage.

Spreader Bar

Frame Rails

Lifting Lugs

Figure 1

Unit Layout

Airflow

4

5

6

3

2

1. Fan Section

2. Coil Section

 • ChilledWater • HotWater
 • DXCoils • SteamCoils

3. Inlet Filter
Vertical inlet filter with quarter-turn fasteners

4. Lifting Lugs/Hanging Brackets
Six (6) lifting lugs for each unit

5. Side Access Panels
Right and left access to each unit. (Image shows
panels removed).

6. 11⁄4 inch knockout is provided for the recommended
electrical wiring penetration or disconnect switch.

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Hanging Instructions

The LFC should be hung by the factory supplied
lifting lugs or field supplied frame rails as shown
respectively in Figures 2 and 3. All hanging brackets
must be used to mount the unit. The LFC is available
with both external neoprene and spring isolation
options.

Figure 2

Figure 3

Model LFC Low-Profile Fan Coil

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Unit Dimensions

F

H

G

Unit
Size

All dimensions are in inches.

w/o Filter w/ 2 in. Filter w/ 4 in. Filter Height Width Height Width

15 40 42 44 8.0 11.0 38 9.0 36 4.0 6.75
20 40 42 44 11.0 14.0 38 12.0 36 6.5 6.75
25 40 42 44 13.0 16.0 38 14.0 36 8.0 8.5
30 45 47 49 15.5 18.5 38 16.5 36 9.0 9.0
45 45 47 49 14.25 18.5 50 16.5 48 9.0 10.0
50 48 50 52 16.75 21.0 50 19.0 48 10.25 10.0
65 52 54 56 21.75 26.0 50 24.0 48 12.0 12.75
85 52 54 56 21.75 26.0 62 24.0 60 12.0 15.0

A

B

I

C

E

D

J

J K Width

I

Elevation ViewTop View

Inlet Outlet

K

Weights

Unit
Size

15 128 50 178 25 31 44 60 75 5 8
20 151 50 201 32 41 61 83 105 6 10
25 175 60 235 38 51 77 106 135 8 13
30 199 60 259 45 61 94 129 165 9 15
45 250 75 325 51 70 110 152 195 11 17
50 316 75 391 58 80 127 175 225 12 19
65 405 75 480 64 90 143 198 255 14 22
85 450 100 550 71 100 160 221 285 15 24

All weights are shown in pounds (lbs.) Motor weights may vary depending on enclosure type and horsepower.

Mounting Dimensions

Unit
Size

15 40 18.25 19.75 38 43 1 0.5 2.5
20 40 19 19 38 43 1 0.5 2.5
25 40 19 19 38 43 1 0.5 2.5
30 45 19 24 38 43 1 0.5 2.5
45 45 19 24 50 55 1 0.5 2.5
50 48 19 27 50 55 1 0.5 2.5
65 52 19 31 50 55 1 0.5 2.5
85 52 19 31 62 67 1 0.5 2.5

All dimensions are in inches.

Fan w/ Drain Pan

Fan Motor Total

Horizontal Hanging

A B C D E F G H

1 Row 2 Row 4 Row 6 Row 8 Row

2 in. Vertical

Filter

Filter Sizes and Quantity

Size Filter Size Qty Face Area (ft 2)

15 9 x 18 2 1.8

20

25 14 x 18 2 3.0

30

45 16 x 24 2 4.8
50 18 x 24 2 5.4
65 24 x 24 2 7.2

85

All dimensions are in inches.

12 x 12
12 x 24

16 x 16
16 x 20

12 x 24 1
24 x 24 2

1 2.5

1 3.4

4 in. Vertical

Filter

8.9

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Coil Dimensions

B

Copper Sweat

Airflow

Outlet

A

2

3.75

0.75

3

1

Drain Connection

1.5

B

Copper Sweat

Airflow

Outlet

A

2

3.75

0.75

3

1

Drain Connection

1.5

B

Steel MPT

Airflow

Outlet

A

2

C

0.75

3

1

Drain Connection

1.5

Hot Water • 1 and 2 Row

0.25 vent and drain supplied. Right side connection shown.

Hot Water • 4 Row

Unit Size A B

15

7.63 0.75

20 10.13 0.75
25 12.63 0.875
30 15.13 0.875
45 15.13 0.875
50 17.63 1.125
65 22.63 1.375
85 22.63 1.375

All dimensions are in inches.

NOTE

Fluid enters the coil from the bottom connection
(Inlet) and exits from the top (Outlet).

Unit Size A B

15 7.63 0.75
20 10.13 0.75
25 12.63 0.875
30 15.13 0.875
45 15.13 0.875
50 17.63 1.375
65 22.63 1.375
85 22.63 1.375

All dimensions are in inches.

0.25 vent and drain supplied. Right side connection shown.

Steam • 1 and 2 Row

Right side connection shown.

NOTE

With airflow from left to right, the fluid enters the coil
from the bottom connection (Inlet) and exits from the
top (Outlet). The other two coil connections should
be capped off (Cap).

Unit Size A B C

15 7.0 1.5 3.81
20 6.94 1.5 3.56
25 8.19 2.5 3.81
30 9.44 2.5 3.56
45 9.44 2.5 3.56
50 10.69 2.5 4.81
65 13.19 2.5 3.56
85 13.19 2.5 3.56

All dimensions are in inches.

NOTE

Steam enters the coil from the center connection
(Inlet) and exits from the bottom (Outlet).

Model LFC Low-Profile Fan Coil

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