Movincool CM12 Operation Manual

OPERATION MANUAL

U

L

US LISTED

C

CM12

READ THIS MANUAL CAREFULLY FOR INSTRUCTIONS ON CORRECT

INSTALLATION AND USAGE, AND READ ALL SAFEGUARDS.

© 2006 DENSO SALES CALIFORNIA, INC.

All rights reserved. This book may not be reproduced or copied,
in whole or in part, without the written permission of the publisher.
DENSO SALES CALIFORNIA, INC. reserves the right to make changes
without prior notice. MovinCool is a registerd trademark of
DENSO Corporation.

Table of ConTenTs

FOREWORD ............................................................................................ 1

GENERAL WARNINGS & CAUTIONS ................................................... 1

INVENTORY ............................................................................................. 2

INSTALLATION ........................................................................................ 2

Unit Overview ................................................................................... 2

Clearance Requirement ................................................................... 3

Mounting to Roof Structure ............................................................ 4

Power Supply Requirement ............................................................5

Service Panel Access ...................................................................... 5

Power Connection ........................................................................... 6

Drain Hose Connection ................................................................... 6

Packing Attachment ........................................................................ 8

Thermostat Connection .................................................................. 8

Warning Signal Connection............................................................. 9

Fire Alarm Control Panel Connection .......................................... 10

Dip Switch Setting ......................................................................... 10

Ducting with Typical Drop Ceiling ................................................ 11

FEATURES ............................................................................................. 12

DAILY INSPECTION & MAINTENANCE ............................................... 13

TROUBLESHOOTING ........................................................................... 13

Installation Check Sheet ...............................................................14

TECHNICAL SPECIFICATION .............................................................. 15

foReWoRD

Congratulations on purchasing the MovinCool CM12.

This manual explains how to assemble, install and operate the MovinCool CM12 air con­ditioning unit. Please read this operation manual thoroughly to familiarize yourself with the
features of the unit and to ensure years of reliable operation. You may also find it useful to
keep this operation manual on hand for reference.

Components and/or procedures are subject to change without prior notice.

Definition of Terms

WARNING: Describes precautions that should be observed in order to prevent
injury to the user during installation or unit operation.

CAUTION: Describes precautions that should be observed in order to prevent
damage to the unit or its components, which may occur during installation or unit
operation if sufficient care is not taken.

NOTE: Provides additional information that facilitates installation or unit operation.

• Para Español, visita www. movincool.com

• Pour le français voit la www.movincol.com

GeneRal WaRnInGs & CaUTIons

• All electrical work should only be performed by qualified electrical personnel. Repair
to electrical components by non-certified technicians may result in personal injury
and/or damage to the unit. All electrical components replaced must be genuine Mov­inCool parts, purchased from an authorized reseller.

• Installation should be conducted by qualified technician only and DENSO and
DENSO affiliate are not responsible for injuries and/or damages caused by improper
installation.

1

InVenToRY

OPERATION
MANUAL

CM12 UNIT

CONDENSATE PAN

DRAIN FOR

MAINTENANCE

CO

LD AIR EXHAUST

(10 IN. DIA. FLANGE)

EVAPORATOR (ROOM)
AIR INTAKE
(10 IN. DIA. FLANGE)

MOUNTING
BRACKETS

DRAIN PIPE

FOR PUMP

CONDENSER (HOT)

AIR EXHAUST

CLIP

PA

CKING II (1 IN. X 33 IN. X 0.2 IN.)

P

ACKING I (2.75 IN. X 32 IN. X 0.2 IN.)

After unpacking your MovinCool unit, please check to make sure you have the following
items:

• CM12 MovinCool Unit (1)

• Operation Manual/Warranty Card (1)

• Clip (1)

NOTE: If any of these items were not included in the box or appear damaged, please
contact your MovinCool reseller for replacement.

• Packing I (1)

• Packing II (1)

InsTallaTIon

Unit Overview

2

InsTallaTIon

WALL

CEILING

WALL

WEIGHT: 121 LBS

All dimensions are in inches

INTAKE

EXHAUST

33.62

31.97

34.80
ø0.55

ø10.00

15.67

17.64

19.92

Minimum
clearance

40 inch

from wall

Minimum
clearance

40 inch

from wall

2.68

15.31

15.40

7.49

8.68

0.59

4.06

2.77

1.97

10.00

9.21

Top of the unit should not contact

any building structure or object.

CONDENSER AIR INTAKE

SERVICE PANEL

SIGNAL WIRE

OVERRIDE (STOP)

SWITCH

POWER CORD
CONNECTION

WARNING: Remove protective cardboard from condenser intake after installation.

Clearance Requirement

3

InsTallaTIon

VIBRATION ISOLATOR

(MIN 125 LBS. LOAD CAPACITY)

1/2 IN. THREADED ROD

(MIN 125 LBS. LOAD CAPACITY)

ALL MOUNTING HARDWARE FIELD PROVIDED

SEE MOUNTING DETAIL

1/2” THREADED ROD

(MIN 125 LBS. LOAD CAPACITY)

1/2” NUT

1/2” NUT

1/2” JAM NUT

1/2” WASHER

1/2” WASHER

MOUNTING BRACKET

Mounting the CM12 to a Roof Structure

WARNING: Be sure that the supporting roof structure is capable of supporting the
weight of the unit, mounting hardware and the accessories (Roof structure should
be capable to support four times of total weight or more. Unit weight is 121 lbs).

Be sure to securely anchor the top ends of the suspension rods. Make sure all nuts
are tight. Be sure to follow all application codes.

The CM12 unit is usually mounted above the ceiling and must be securely mounted to the
roof structure. The ceiling support of the existing building may require reinforcements.

Use field-supplied threaded 1/2 inch suspension rods, washers, nuts and vibration isola­tors.

The recommended clearance between ceiling grids and building the structural member is
the unit height plus 3 inches.

Install the four field-supplied rods by
suspending them from suitable building
structure members. Locate the rods so that
they will align with four mounting holes in
the mounting bracket that are part of the unit
base.

Wear gloves to avoid injury during installation

Tightening torque for nuts: 33lbf•ft

CAUTION: Make sure the unit is level
(must be less than 2˚ incline).

4

Power Supply Requirements

CIRCUIT BREAKER WITH

GROUND-FAULT PROTECTIVE

FUSE 20A MAX.

TERMINAL BLOCK OF CM12 GROUND TERMINAL

R T G

R T

G

• The CM12 requires a single-phase 115V, 60Hz power supply to operate.

• The power supply should be a dedicated single outlet circuit with a UL approved
short-circuit and ground fault protective breaker with a fuse size of 20A maximum.

Service Panel Access

Access service panel by removing 4 screws.

Tightening torque for screw is 0.8 lbf•ft.

5

Power Connection

DRAIN PIPE

CONDENSATE PAN

DRAIN FOR

MAINTENANCE

R T I

Connecting Power Supply to Unit

The following are recommended wire sizes

and electrical ratings:

• Cord Type: SJT (3 wires) or equivalent

• Wire Gauge: 14 AWG

• Voltage Rating: 300V min

• Heat Resistance: 60˚C

• Remove service panel from the right
side of CM12 unit.

• Route power cord wires through the
opening of the left grommet connector
located below service panel. Tighten
the grommet connector at about

2.17lbf•ft torque.

• Connect the neutral wire (white color label “R”) to the left screw connection of termi­nal block. Tighten screw at about 0.96lbf•ft torque.

• Connect the line wire (black color label “T”) to the center screw connection of termi­nal block. Tighten screw at about 0.96lbf•ft torque.

• Connect the ground wire (green color label “G”) to brass screw located below termi­nal block. Tighten screw at about 0.96lbf•ft torque.

WARNING: All electrical work should only be performed by qualified personnel.
Repair to electrical components by non-certified technicians may result in personal
injury and/or damage to the unit.

Drain Hose Connection

The CM12 is equipped with an internal
condensation removal pump. Maximum lift
is 4 ft.

Use the provided 1/2 inch female connection
on the unit for the evaporator coil conden­sate drain. The drain line must be located so
it will not be exposed to freezing tempera­tures. The drain should be the full size of the
drain connection. (Connect the drain hose to
the condensation drain or the janitor closet.)

A 1/2 inch ID (5/8 inch OD), PVC tubing is
required for the drain. Insulate the drain
hose; condensation may occur during humid
conditions. (Field supplied material)

6

Plug in the 1/2 inch drain

1/4 IN. PER FOOT

OR MORE

MAX. 3 FT.

MAX. 4 FT.

RED STOPPER

SLOPE

CM12

NO TRAP TO DRAIN HOSE

ABOVE DRAIN
WATER

CM12

NO POOL

NO TRAP

hose with the lose clip into
the drain pipe. Make sure

Position the clip to the top
of the drain pipe near the
unit as shown.

Pull out the red stopper and
secure hose. Make sure

there are not kinks or bends.
the hose is all the way in
and flush with the grommet.

When using the gravity drain,

make sure the hose is con-

nected as a decline.

NOTE: Do not use more than 4 feet of drain hose vertically. This is maximum head
(lift) of the condensation pump.

When securing the drain hose to the highest vertical position (no more than 4 feet high)
and running the hose to the drain, run the drain hose on a downward slope at the rate
minimum of 1/4 inch per foot for proper drainage.

Check following items:

1. No kinks or bends on the drain hose

2. No trap in the drain hose

3. The end of the drain hose should be highter than the water level at the drain

4. No dripping from the drain hose at the clamping area

DRAIN HOSE ARRANGEMENT

O X

When uninstalling the unit, empty the drain pan by draining out the water through the drain
pan drain pipe.

7

Packing Attachment

PACKING I

PACKING II

Wall Thermostat

Connector Name

RC

Y

G

G1

Function

Common

Cool On/Off

Fan On/Off

Fan Hi/Low

Label Name

RC

Y

G

G1

Color

Brown

Red

Orange

Yellow

CM12 WIRES

Apply include “Packing I” (provided) and
“Packing II” (provided) to the cold air outlet
flange to prevent condensation in high hu­midity environments.

Release the liner on Packing I and apply to
outside flange cylinder of the ring as shown.

Release the liner on Packing II and apply to
edge of Packing II as shown.

Wall Thermostat Connection

Preparation for Thermostat Connection

• Use with a single stage wall thermostat.

• Set the wall thermostat to cooling system mode, since most wall thermostats are

designed for both heating and cooling.

• Prepare the wire harness for connection from the unit to the thermostat. The recom-

mended wire size is:
Wire Type: Thermostat cable / Solid wire
16 ~ 26 AWG

• Identify the thermostat connectors labeled G, G1, Y, and RC.

G (Fan on/off), G1 (Fan Speed Hi/Lo), Y (Cooling on/off) and RC (Cooling Transfer

- Common)

Connecting Thermostat to CM12 Unit

• Install the wall thermostat to the proper location inside the room where it can be

conveniently accessed. Do not install the wall thermostat where unusual heating
condition may occur (i.e. hot stove, hot pipe, fireplace, direct sunlight ,etc.)

• Most thermostats provide these basic functions:
Fan Mode: On / Auto (Select the desired fan mode)

System: Cool / Heater (Select Cool only)

8

Warning Signal Connection (Output Signal)

The CM12’s controller is equipped with a warning signal output relay type (Form-C, normal
open dry contact), which can be used for monitoring the CM12’s failure condition. Relay
contactor (not connector) is closed when the following condition has occurred:

a. Condensation Overflow

b. Temperature Sensor fails

c. Cooling Function fails

The output of the relay is rated 5A at 30VDC or 5A at 250VAC (resistive load). This can be
used to connect output is compatable with various warning devices such as alarm speak­ers, light indicators, etc.

Connecting Warning Signal From CM12

• Connect the warning device to CM12 signal wires labe L+ and L-.

• The recommended warning signal wire size is 16AWG to 26AWG for a solid wire, or

16AWG to 22AWG for a stranded wire.

9

Fire Alarm Control Panel Connection (Input Signal)

1 2 3 4

NO

4-POSITION DIPSWITCH

“OFF” POSITION

The CM12’s controller is equipped with a normal open input signal, which can be con­nected directly from the fire alarm control panel. When receiving the signal from fire alarm
control panel, the CM12 will turn off and will not turn back on until power source is reset.

Connecting Fire Alarm Control Panel to CM12

• Connect the fire alarm signal wires to CM12 signal wires label E+ and E-.

• The recommended fire alarm signal wire size is 16AWG to 26AWG for a solid wire, or

16AWG to 22AWG for a stranded wire.

Dip Switch Configuration and Setting

The CM12’s controller is equipped with a 4-position dipswitch, which defaults in the OFF
position. The dipswitch can be set to configure the following functions:

a. When the switch position # 1 is ON, the evaporator and condenser fan motor will turn

on. This function is used for test purposes and verification.

b. When switch position # 2 is ON, the compressor, evaporator and condenser fan mo-

tor will turn on. This function is used for test purposes and verification.

c. When switch position # 3 is ON, the compressor delay timer function is disabled.

d. When switch position # 4 is ON, the buzzer sound function is disabled.

10

Ducting With Typical Drop Ceiling

COOL AIR SUPPLY

(EVAPORATOR)

RETURN GRILL WITH FILTER REQUIRED

ROOM AIR

INTAKE

CONDENSER

INTAKE

CONDENSER

EXHAUST

2 ft. x 2 ft.,

T-bar diffuser

with 10 in. flange

10 in. insulated

flexible duct

(6 ~ 10 ft. each)

2 ft. x 2 ft.,
T-bar return

grill with 10 in.

flange and filter

Use a 10 inch diameter insulated duct with low friction and air resistance.

The duct should be bent in a large radius. If the bending radius is less than 15 inches, then
use vanes or guides to the reduce air resistance.

Make sure the ducts are secured in order to absorb vibration from the unit.

Avoid bending the duct suddenly and have air ducts travel in a strait line for improved
performance.

• Following filed supplied hardware requires:

• Insulated 10 inch diameter ducts

• Return air grill with filter for evaporator air intake

• Diffuser for cold air

• Maximum external static pressure, 0.4 IWG for evaporator duct and grills

CAUTION: DO NOT OPERATE CM12 WITHOUT THE FILTER INSTALLED ON THE
RETURN AIR GRILLE.

11

feaTURes

0.5s

0.5s

0.5s

4s

4s

1s

ON

PATTERN 1

(Internal

thermistor

failure)

PATTERN 2

(Pump or

drain

problem)

PATTERN 3

(Refrigeration

system

problem)

OFF

ON

OFF

ON

OFF

CM12 Features

• Built-in condensation removal pump

• Built-in mounting bracket

• Built-in flange for supply and return air (room air) - 10 inch diameter, 2.8 inch deep

cylinder for easy installation

• Fire alarm control panel connection ready for automatic shut off

• Automatic shut off and warning signal output and alarm for

• Condensation Overflow

• Unit Failure (no cooling)

• Temperature Sensor Failure

DaIlY InsPeCTIon & MaInTenanCe

Cleaning Air Filters

The air filter on the evaporator return grill should be checked weekly for dust buildup.
Clean or replace air filter on a weekly basis. If the unit is used in a dusty environment,
more frequent cleaning may be required.

A dirty air filter will reduce the air output, resulting in a decrease of the cooling capacity of
the unit.

The ground fault breaker should be tested at least once a month.

Buzzer Pattern

12

TRoUblesHooTInG

Check the following points before calling a qualified technician.

If symptoms persist after the above actions have been taken, turn the unit off, disconnect
the power and contact your MovinCool reseller.

SYMPTOM

Unit does not operate

Insufficient Cooling /
Unit operation inter­rumpted frequently.

Beeping / Alarm com­ing from unit and unit
stop

(Buzzer sound pattern
indicated on page 12)

POSSIBLE CAUSE

• Power supply is off

• Power interruption

• Blockage of air duct

• Turn off signal input

• Override (Stop) switch is active

• Battery ran out on thermostat

• Blockage of Condenser air
intake or outlet in the ceiling

• Dirty Surface of Condenser
Core

• Dirty / Blocked filters

• Excessive evaporator air duct­ing

• Blockage of Condenser air
intake or outlet in the ceiling

• Outside of operating range

• Internal thermistor failure
(Sound pattern 1)

• Pump or drain problem (Sound
pattern 2)

• Refrigeration system problem
(Sound pattern 3)

REMEDY

• Check circuit breaker

• Unit will turn on auto­matically when power
back (Some thermostats
require you to reset)

• Check duct for any
blockages or excessive
kinks in ducting

• Check for turn off signal
input (fire alarm control
panel)

• Ensure the switch is in
“OPERATE” position

• Change battery

• Check any blockages in
the ceiling

• Clean surface of Con­denser Core

• Clean / replace air filter

• Evaporator ducting
should not exceed 30’
and bend radius should
be larger than twice of
duct diameter.

• Remove the blockage

• Use within operating
temperature range

• Replace internal therm­istor

• Check for drain con­nection. Blockage, kink
or bend on drain hose
(Refer to drain connec­tion of this manual)

13

CM12: Installation Check Sheet

Installation

Before Test
Operation

Test
Operation

Unit

Wiring

Dipswitch Setting

Drain Hose Connection

Grill Installation

Wall Thermostat

Other

Maintenance Switch

Check Operation with
Wall Thermostat

Abnormal Noise

Drain

Air Leakage

ITEMS

Check and make sure all screws are tight and
unit is secured in place

Check and make sure inlet / outlet air exhaust
are clear without blockage

Check and make sure the unit is properly con­nected to the dedicated circuit breaker.

Check and make sure all wiring are properly
connected and secured.

Check and make sure ground wire is tighten
and secured

Check and make sure all dipswitches located
on relay board are set to “OFF” positions.

Check and make sure that drain hose provided
with heat insulator to prevent condensation on
hose surface.

Check and make sure that grill is secured and
properly installed\

Check and make sure wall thermostat is con­nected properly to unit.

Remove card board on Condenser inlet side

Check and make sure override switch located
below maintenance’s panel is at “OPERATE”
position before test operation

Set wall termostat to Fan On or Fan Only mode
to confirm fan only mode operation

Set wall thermostat to Fan Auto or Cool mode
operation. During cool mode operation check
and cinfirm cooling operation after delay timer
is expired. (Note: delay timer vary from 2 ~ 5
minutes depending on thermostat model used)

Check and observe abnormal noise during
Blowing/Cooling operation

During cooling operation check and observe
condensation drip through normal drainage
path

Check for air leakage from duct and duct con­nection

¸

14

TeCHnICal sPeCIfICaTIons

Electronic Control Panel Wall Thermostat
Features Thermostat Control Electronic

Cooling Capacity 80˚F 50%RH (

95˚ 40%RH (

Electrical Voltage Requirement 1 Phase, 115V, 60 Hz
Characteristics Total Power Consumption 1.23 kW #1, #2

Current Consumption 11.9 Amps #1, #2
Recommended Fuse Size 15 Amps
Min. - Max. Voltage 105 - 125

Fans Motor Output (Evaporator) - 0.04/0.013 kW
high/low
Motor Output (Condenser) - 0.1/0.025 kW
high/low

Evaporator Fan Type Centrifugal
Max. air Flow - high/low 324 CFM / 228 CFM #1
Max External Static Pressure 0.16 IWG

Condenser Fan Type Centrifugal
Max. air Flow - high/low 700 CFM / 370 CFM
Max External Static Pressure 0.12 IWG

Compressor Type Hermetic Rotary
Output 0.89 kW

Refrigerant Charge R-22 1.14 lbs
Dimension W x D x H (without flange and 32 x 20 x 15 inches

mounting bracket)
W x D x H (with flange and 35 x 23 x 15.5 inches
mounting bracket)

Evaporator) #1

Condenser) 10,500 BTU/h

Net Weight/Shipping Weight 121 / 140 lbs

Condensate Pump Pump rate 5 gal/hr
Capacity Head 4 ft.

Operation Conditions

65 - 113˚F (Condenser)

Max. Duct Length Cold Duct Hose (Evaporator) 20 ft. #4
Hot Duct Hose (Condenser) 10 ft. #4

Max. Sound Level Under Ceiling Tile with Evap- 52 dB(A)
orator Duct

#1: With two 6 ft. duct with one 90˚ bend each, supply grill and return grill with filter (0.16 IWG external static pressure)
#2: Ambient condition for rating: Evaporator: 80˚F 50% RH / Condenser: 95˚F 40% RH
#3: When ambient temperature is lower than 65˚F, operation may interrupt due to anti-freeze protection activation
#4: Confirm pressure drop of duct, grills and filter with manufactures specifications

Min. - Max. (@50% RH) 65 - 95˚F (Evaporator) #1, #3

15

16

LIMITED WARRANTY

DENSO SALES CALIFORNIA, INC. (“DENSO”) warrants its MOVINCOOL
Products only to the extent stated in its official written warranties. Unless
otherwise specifically provided in writing by DENSO, DENSO warrants to end­user that the Products shall be free of defects in materials or workmanship and
will function in accordance with DENSO’s published specifications under ordinary
intended use and service for a period of twelve (12) months after delivery to the
end-user; provided, however, in the case of the compressor element of the Products
such warranty shall be for a period of thirty six (36) months after delivery to the
end-user. DENSO shall, at its sole option, repair or replace any defective Product
covered by this warranty. Such remedy shall be end-user’s sole remedy with
respect to any particular defect in the Products.

This warranty does not cover defects or malfunctions which result from causes
beyond DENSO’s control, including, without limitation, (i) unusual physical or
electrical stress; (ii) accident, neglect, abuse, misuse or other abnormal use; (iii)
failure to perform routine maintenance in accordance with DENSO’S recommended
procedures; (iv) normal wear and tear; (v) repairs or attempted repairs by an
unauthorized person; (vi) modifications or alterations to the Products; (vii) use
with supplies or devices not supplied or approved by DENSO; (viii) improper
installation or service; or (ix) parts not supplied by DENSO. This warranty shall ex­tend only to the original end-user and shall be void if any labels or other identifying
marks permanently affixed to Products when shipped by DENSO are removed,
altered, defaced or obliterated.

The aforesaid warranty is the only warranty made by DENSO with respect to the
Products and is in lieu of all obligations or liabilities on the part of DENSO for
damages arising out of or in connection with the sale, use or performance of the
Products, including, without limitation, any lost profits or any other consequen­tial, incidental, special or exemplary damages of any kind. DENSO DISCLAIMS
ALL OTHER WARRANTIES WITH REGARD TO THE PRODUCTS, INCLUDING
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR USE.
THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION
CONTAINED HEREIN.

PURCHASE DATE: ______________________________________________________

SERIAL NUMBER: ______________________________________________________

DENSO SALES CALIFORNIA, INC.

U

L

US LISTED

C

3900 Via Oro Avenue

Long Beach CA 90810-1868

800-264-9573 / 310-834-6352

www.movincool.com

GAC P/N: 484007-1970