Acme Engineering EC-S Installation Manual

Read and Save These Instructions

Form 613084A

INSTALLATION & MAINTENANCE INSTRUCTIONS

EC Motor Wiring Diagrams

This publication applies to Acme fan models shipped with the EC Motor (Electronically Commutated Motor)

Please read and save these instructions for future reference. 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 could result in
personal injury and/or property damage!

This section applies only to EC Motor Part Numbers 921728, 921733, 921735, 921736, 922711, 922712, 922713, and 923250

Potentiometer Dial Only*- (See Figure 1) Motor features a potentiometer dial located on the side of the motor allowing the user to make

necessary speed adjustments with a small at tip screw driver. The 3 control wires are not used. The motor can also be controlled by

a separate 0-10 VDC and 24 VAC to the control wires, in this set up the potentiometer dial needs to be set to full speed (CW).

Optional Speed Controller (See Figure 2)

Remote Speed Controller Single Speed (Optional)*- (See Figure 2-A) Set the potentiometer dial located on the side of the motor to

full clockwise. When selected with this option the fan will come with a 24 VAC transformer mounted for the purpose of powering the

logic circuits in both the motor and the remote speed controller. The remote speed control will supply a DC signal that varies from 0 to
10V. This signal will vary the motors speed. The motor will shut off between 0-1.9v.

Mounted Speed Controller Two Speed (Optional)*- (See Figure 2-B) Set the potentiometer dial located on the side of the motor to full
clockwise. When selected with this option the fan will come with a 24 VAC transformer mounted for the purpose of powering the logic

circuits in both the motor and the dual speed controllers mounted on fan. The supplied toggle switch will select the Low (LO) or High
(HI) speed on the speed controllers based on the dial settings. The motor will shut off between 0-1.9v.

Customer Building Controller - (See gure 2-C) Set potentiometer dial located on motor side to full clockwise. Connect Red (0­10VDC) and White (Common) to building controller. Motor requires factory mounted 24VAC transformer to run motor logic boards. The
motor shuts off between 0-1.9V.

* All 115, 208 or 230V connections will be made in the supplied junction box. Wire to the remote speed control is to be supplied by
others and must meet all applicable codes.

NOTE: When using a remote variable speed control the potentiometer on the motor (if present) should be set to full clockwise.

The remote speed control location is limited by a maximum wire length of 100 feet. Up to 6 fans can be operated from one remote
control. Only one transformer should be used.

FAN MOTOR

MCMILLIAN
EC MOTOR
115 VAC,
208 VAC, OR
230 VAC

POWER INPUT
LINE

115, 208, OR
230 VAC

POTENTIOMETER DIAL ONLY (FIGURE 1)

SET POTENTIOMETER FOR
SPEED CONTROL

ISOLATED
CONTROL INPUT

WHT - L1

BLK - L2

GREEN - GROUND

WHT L1

BLK L2

GREEN - GROUND

SAFETY
DISCONNECT
SWITCH

RED - 1-10 VDC

WHITE - COMMON

BLACK - 24 VAC

0-10 VDC OUTPUT

POWER INPUT

LINE

MCMILLIAN

EC MOTOR

115 VAC,

208 VAC, OR

FAN MOTOR

115, 208, OR

230 VAC

MOTOR SPEED CONTROL

SINGLE SPEED CONTROL ACCESSORY

REMOTE CONTROL

MAY BE MOUNTED UP TO 100 FT FROM FAN

RED - 1-10 VDC

WHITE - COMMON

BLACK - 24 VAC

FIGURE 2-A

LO

BLACK - LO

BLACK - 24 VAC

SHIPPED MOUNTED IN FAN

MAY BE MOVED UP TO 100 FT FROM FAN

DUAL SPEED CONTROL

WHITE - HI

WHITE - COMMON

RED - 1-10 VDC

FIGURE 2-B

HI

REMOTE SPEED SWITCH

MAY BE MOUNTED UP TO 100

WHITE - COMMON

BLACK - 24 VAC

WHITE - COMMON

BLACK - 24 VAC

OFF

LO

HI

FT FROM FAN

WHITE - HI

BLACK - LO

RED - 1-10 VDC

1 2 3

Note: If pin numbers are missing or worn off

orient speed controller as shown (single speed

controller shown 2 speed control same as single

speed.)

OPTIONAL EC MOTOR CONTROLS (FIGURE 2)

FIGURE 2-B DUAL SPEED

FIGURE 2-A SINGLE SPEED

FIGURE 2-C BUILDING CONTROL (BY OTHERS)

REMOTE CONTROL

0 - 10 VDC SUPPLIED

FROM BUILDING CONTROL

COMPUTER

0-10 VDC INPUT FROM

ENVIROMENTAL

COMPUTER

INSULATE THE 24 VAC

RED - 1-10 VDC

WHITE - COMMON

BLACK - 24 VAC

FIGURE 2-C

LINE

RED - 1-10 VDC

WHITE - COMMON

BLACK - 24 VAC

CONTROL INPUT

SET POTENTIOMETER TO

FULL SPEED (FULL CW)

ISOLATED

WIRE

ORG 230 VAC

BRN 277 VAC

CONNECT TO LINE

CORRESPONDING TO

MOTOR VOLTAGE AND

INSULATE THE REST

WHT - L1

BLK - L2

GREEN - GROUND

NUT

YEL

YEL/WHT

WHT 115 VAC

WHT 115 VAC

BLK COMMON

RED 208 VAC

GREEN - GROUND

WHT L1

BLK L2

SAFETY

SWITCH

DISCONNECT

WHT L1

BLK L2

GREEN - GROUND

24 VAC OUTPUT

115, 208, OR 230 VAC

INPUT

TRANSFORMER

2

230 VAC

2

ACCEPTANCE All orders and sales are subject to
written approval and acceptance by an executive offi
cer of Acme Engineering & Manufacturing Corporation
at Muskogee, Oklahoma, (the "Company") and are not
binding on the Company until so approved.

DELIVERY All shipping and delivery dates are esti
mated only. No delays in delivery will subject the
Company to any costs, damages or fees for late deliv
ery. Delivery of the products herein specified shall be
made F.O.B. point of shipment, unless otherwise
stated. The Company shall not be liable for delay due
to causes beyond its reasonable control, such as Acts
of God, acts of the purchaser, acts of civil or military
authorities, priorities, fires, strikes, floods, epidemics,
war, riots, delays in transportation, car shortages, and
inability, due to reasons beyond its reasonable control,
to obtain necessary labor, material, or manufacturing
facilities. In the event of such a delay, the date of deliv
ery shall be extended for a period equal to the time lost
by reason of the delay.

TERMS OF PAYMENT If, in the judgment of the Com
pany, the financial condition of the purchaser at any
time does not justify continuation of manufacture or
shipment on the terms of payment specified, the Com
pany may require full or partial payment in advance.

Pro rata payments shall become due as shipments are
made. Each shipment or delivery shall constitute a
separate sale, and the default of any shipment or deliv­ery shall constitute a separate sale, and the default of
any shipment or delivery shall not vitiate the contract
as to other shipments or deliveries.

SALES AND SIMILAR TAXES The Company’s prices
do not include sales, use, excise, or similar taxes.
Consequently, in addition to the price specified herein,
the amount of any present or future sales, use, excise,
or other similar tax applicable to the sale of the product
herein shall be paid by the Purchaser, or in lieu thereof

WARNING Acme products are designed and manufactured to provide reliable performance but they are not guaranteed to be 100% free of defects. Even reliable products will
experience occasional failures and this possibility should be recognized by the Purchaser and all End Users. If these products are used in a life support ventilation system
where failure could result in loss or injury, the Purchaser and all End Users should provide adequate back-up ventilation, supplementary natural ventilation or failure alarm sys­tem, or acknowledge willingness to accept the risk of such loss or injury.

WARNING DO NOT use in HAZARDOUS ENVIRONMENTS where fan’s electrical system could provide ignition to combustible or flammable materials unless unit is specifi­cally built for hazardous environments. Comply with all local and national safety codes including the National Electrical Code (NEC) and National Fire Protection Act (NFPA).

CAUTION Guards must be installed when fan is within reach of personnel or within eight (8) feet (2.5 m) of working level or when deemed advisable for safety.

DISCLAIMER The Company has made a diligent effort to illustrate and describe the products accurately in all Company literature; however such illustrations and descriptions

are for the sole purpose of identification and do not express or imply any warranty.

the Purchaser shall provide the Company with a tax

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exemption certificate acceptable to the taxing authori
ties.

CANCELLATION Any contract resulting from the Pur
chaser’s order may be canceled by the Purchaser only

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by negotiations and upon payments of reasonable can
cellation charges which will take into account expenses

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already incurred and commitments made by the Com
pany.

DESIGN CHANGES The Company reserves the right
to make changes in design, improvements and addi
tions in and to its products any time without imposing
any liability or obligations to itself to apply or install the
same in any product manufactured by it.

TITLE The title and right of possession of the products
sold herein shall remain with the Company and such

­products shall remain personal property until all

payments herein (including deferred payments whether
evidenced by notes or otherwise) shall have been
made in full in cash and the Purchaser agrees to do all

­acts necessary to perfect and maintain such right and
title in the Company.

­PRICE ADJUSTMENTS Prices are subject to change

upon notice by the Company. Prices on existing or
ders are subject to surcharges in the event of cost in­creases of metals and transportation. All complete
component accessory material manufactured by others
and furnished with the Company’s products such as
motors, drives, vibration equipment, controls or other
completely assembled component structures, are sub­ject to adjustment to the price at time of shipment re­gardless of the date of original order entry.

SAFETY ACCESSORIES The Company manufactures
products designed to serve multiple applications and
offers a wide range of safety equipment, including
guards and other devices, as may be required to meet

customer specifications. Without exception, the Com

­pany recommends that all orders include applicable

safety devices. Products ordered without applicable
safety devices is clearly the responsibility of the Pur

­chaser. Further, the Purchaser warrants that it has de

termined and acquired any and all safety devices re

­quired for products sold by the Company. Weather

covers and guards for motor and V-belt drives, cou

­plings, shafts and bearings, along with inlet and outlet

screens, are optional accessories noted in the price
list.

­GOVERNING LAW The rights, obligations and reme

dies of Purchaser and the Company, the interpretation
of these terms and conditions and the sale of products
by the Company shall be governed by Oklahoma law,
without regard to any principles of conflict of laws.

ARBITRATION Any dispute arising under or in con
nection with these terms and conditions or the sale of
products shall be settled by binding arbitration admin­istered by the American Arbitration Association under
its Commercial Arbitration Rules, and judgment on the
award rendered by the arbitrator may be entered in
any court having jurisdiction thereof. The dispute shall

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be resolved by one neutral arbitrator who shall have no
affiliation with either Purchaser or the Company and
shall be selected by the American Arbitration Associa­tion office in Dallas, Texas. The arbitration proceed­ings shall be held in Muskogee, Oklahoma.

APPLICABLE DOCUMENTS The agreement be­tween the Company and the Purchaser relating to the
products includes these terms and conditions of sale,
any applicable installation and maintenance instruc­tions provided by the Company and any terms appear­ing on the Company’s quotation, sales order acknowl­edgment and invoice.

LIMITED WARRANTY

TERMS AND CONDITIONS OF SALE

WARRANTY AND DISCLAIMER: the Company ex-

tends this limited warranty to the original purchaser
and warrants that products supplied by the Company,
shall be free from original defects in workmanship and
materials for two years from date of shipment (except
for the warranty periods noted for products listed be­low), provided same have been properly handled,
stored, installed, serviced, maintained and operated.
This warranty shall not apply to products which have
been altered or repaired without the Company’s ex­press authorization, or altered or repaired in any way
so as, in the Company’s judgment, to affect its perfor­mance or reliability, nor which have been improperly
installed or subjected to misuse, negligence, or acci­dent, or incorrectly used in combination with other sub­stances. The Purchaser assumes all risks and liability
for results of use of all products.

Evaporative cooling pads are warranted to be free of
defects in materials and workmanship for a period of
two years from date of shipment provided same have
been properly handled, stored, installed, serviced,
maintained and operated; and further, not subjected to
excessive heat, corrosive agents or chemicals, or me­chanical abuse that may cause tearing, crushing or un­due deterioration, nor used on a system or in a manner
other than that for which it was designed as explained
in the product literature.

The following products are warranted to be free of de
fects in materials and workmanship for the periods
shown from date of shipment: Acme’s exclusive du
plex split pillow block bearings and shaft five years,
belts one year, Polyethylene tubing 90 days, AIR40
Heater warranty one year, AIR40 Emitter warranty
three years and DDP fan lifetime warranty on its pro
peller, cone, and housing.

LIMITATION OF REMEDY AND DAMAGES: All
claims under this warranty must be made in writing and
delivered to P. O. Box 978, Muskogee, Oklahoma,
74402, within 15 days after discovery of the defect and
prior to the expiration of two years from the date of
shipment by the Company of the product claimed de
fective, and Purchaser shall be barred from any

ACME ENGINEERING AND

MANUFACTURING CORPORATION

P.O. Box 978

Muskogee, Oklahoma 74402

Telephone [phone]

Fax [phone]

www.acmefan.com

Member Air Movement and Control Association International, Inc. February 2016 613084A

remedy if Purchaser fails to make such claim within
such period.

Within 30 days after receipt of a timely claim, the Com­pany shall have the option either to inspect the product
while in Purchaser's possession or to request Pur­chaser to return the product to the Company at Pur­chaser's expense for inspection by the Company. The
Company shall replace, or at its option repair, free of
charge, any product it determines to be defective, and
it shall ship the repaired or replacement product to
Purchaser F.O.B. point of shipment; provided, how­ever, if circumstances are such as in the Company’s
judgment to prohibit repair or replacement to remedy
the warranted defects, the Purchaser's sole and exclu­sive remedy shall be a refund to the Purchaser of any
part of the invoice price, paid to the Company, for the
defective product or part.

The Company is not responsible for the cost of re­moval of the defective product or part, damages due to
removal, or any expenses incurred in shipping the
product or part to or from the Company’s plant, or the
installation of the repaired or replaced product or part.

The warranties set forth above do not apply to any
components, accessories, parts or attachments manu­factured by other manufacturers; such being subject to
the manufacturer’s warranty, if any. To the extent not
prohibited by the manufacturer’s warranty, the Com

­pany shall pass through to Purchaser such manufac

turer’s warranty.

­THE COMPANY’S WARRANTY IS IN LIEU OF ALL

OTHER WARRANTIES, EXPRESS OR IMPLIED,
ARISING BY LAW OR OTHERWISE, INCLUDING

­WITHOUT LIMITATION THE IMPLIED WARRANTIES

OF MERCHANTABILITY AND FITNESS FOR A PAR
TICULAR PURPOSE, WHICH ARE HEREBY EX
PRESSLY DISCLAIMED AND WAIVED. THIS WAR
RANTY CONSTITUTES THE COMPANY’S SOLE
AND EXCLUSIVE WARRANTY FOR DEFECTIVE
GOODS AND PURCHASER’S SOLE AND EXCLU
SIVE REMEDY FOR DEFECTIVE PRODUCTS.

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No employee, agent, dealer, or other person is
authorized to give any warranties on behalf of the
Company or to assume for the Company any
other liability in connection with any of its products
except in writing and signed by an officer of the
Company.

REPLACEMENT PARTS If replacement parts are
ordered, purchaser warrants that the original com
ponents in which these replacement parts will be
placed are in satisfactory working condition, and

when said replacement parts are installed, the resul­tant installation will operate in a safe manner, at
speeds and temperatures for which the original prod­uct was purchased.

TECHNICAL ADVICE AND RECOMMENDATIONS,
DISCLAIMER: Notwithstanding any past practice or

dealings or any custom of the trade, sales shall not in­clude the furnishing of technical advice or assistance
or system design. Any such assistance shall be at the
Company’s sole option and may be subject to addi­tional charge.

The Company assumes no obligation or liability on ac­count of any recommendations, opinions or advice as
to the choice, installation or use of products. Any such
recommendations, opinions or advice are given and
shall be accepted at Purchaser's and End User's risk
and shall not constitute any warranty or guarantee of
such products or their performance.

LIMITATION OF LIABILITY The cumulative liability of
the Company to the Purchaser and any other persons
for all claims in any way relating to or arising out of the
products, including, but not limited to, any cause of ac­tion sounding in contract, tort, or strict liability, shall not
exceed the total amount of the purchase price paid for
those products which are the subject of any such
claim. This limitation of liability is intended to apply

­without regard to whether other provisions of this

­agreement have been breached or have proven inef

fective even if the Company has been advised of the
possibility of such claims or demands. In no event
shall the Company be liable to the Purchaser or any
other person for any loss of profits or any incidental,
special, exemplary, or consequential damages for any
claims or demands brought by the Purchaser or such

­other persons.

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­INDEMNITY The Company’s maximum liability to Pur

chaser and to any end user is as set forth above. The
Company makes no warranty to anyone for any prod

­ucts not manufactured by the Company and shall have

no liability for any use or installation of any products
(whether manufactured by the Company or other man
ufacturers) not specifically authorized by this sale.
Purchaser acknowledges various warnings by the
Company regarding the products and its installation
and use. If the Company incurs any claims, lawsuits,
settlements, or expenses (including attorney fees) for
any loss, injury, death or property damage including,
but not limited to, claims arising out of the Purchaser’s

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or any end user’s installation or use of the products,
the Purchaser shall indemnify and hold the Company
harmless.

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