CTM CT User manual

MARINE
SELF-CONTAINED
AIR CONDITIONER
CT Models
(10,000 & 16,000 BTU)
INSTALLATION MANAL
CTM-MARINE
A division of Ciiine o
1 (00) 66 - 6
info-ineo
-ineo
Form No. UM-SC1000420
WARNN
Cancer and reproductive Harm
www.P65warnings.ca.gov

TABLE OF CONTENTS
CTM Marine Self-Contained CT Intallation ManalTale of Content
1 Introduction ........................................................................ 3
2 Technical Data ..................................................................... 6
3 Pre-Installation .................................................................... 
 nit Installation ................................................................... 
 Disla Control ................................................................. 1
6 Trouleshootin ................................................................ 16
 arrant ........................................................................... 1
Product Description & Features ................................................................................................. 3
How to Read this Manual............................................................................................................ 4
Understanding Unit Labels.......................................................................................................... 5
Unit Overview ............................................................................................................................. 
pecications .............................................................................................................................. 
Diensions .................................................................................................................................. 

Locating the Unit ........................................................................................................................ 
lower Rotation .......................................................................................................................... 
onlip solation tape ............................................................................................................. 
Mounting racets .................................................................................................................... 
Ducting ...................................................................................................................................... 
eawater ste ........................................................................................................................
lectrical onnections .............................................................................................................. 3
nstallation Overview .................................................................................................................. 
Please read and follow the safety information and instructions carefully before installing your unit.
You can always contact Customer Service if you have any doubts, concerns, or questions about the
contents in this Instructions Manual. Failure to heed these warnings and instructions could not only
result in malfunction of the product, but also result in death or serious injury.
CM Marine does not accept liability for damage in the case of
Failure to assemble or connect the unit properly following the instructions in this manual.
amage to the unit and its accessories resulting from mechanical inuences and ecess
voltage.
ny alteration to the units without permission from CM Marine.
se for purposes other than the purposes described in this manual.
In the interest of product improvement, the specications and design are subject to change without
prior notice.

CTM Marine Self-Contained CT Intallation Manal
Product Description & Features
Thank you for purchasing our CTM Marine self-contained marine air conditioner. Our CT series are
self-contained, direct-expansion, seawater cooled, reverse-cycle air conditioners, designed for
marine applications incorporating the following features:
o o ead is anua
This manual provides proper installation information on CTM-Marine self-contained air conditioning
units (CT models). mproper installation procedures can result in unsatisfactory performance andor
premature failure of these ac units as well as serious inury or death. efore proceeding please read
this manual completely.
Throughout this manual you will nd a few signaling symols. lease take a time to read and
understand what each signaling symol means:
n the next page we descrie how to read this manual and follow the instructions.
High Efciency Rotary Compressors
270º Rotatable High Velocity Blower
Titanium Condenser Coil
B nsulated an
tainless teel rame Base
reCharged and reired ystems
for Easy Connections
Electrical Bo Retardant Coer
uiet
niersal Board
Compact esign
CTModel

Introdtion  o To ead Ti Manal
 D
!sed to indicate a dangerous situation where if not followed carefully could
result in serious inury or death
sed to indicate important information
sed to indicate additional information
R Code for access to irtual content such as tutorial ideos

CTM Marine Self-Contained CT Intallation Manal
How To Read This Manual
4
Introdtion  o To ead Ti Manal
Some sections of this instructions
manual have QR codes that you can
easily scan with your Smartphone. They
generally contain tutorial videos
following the instructions in this manual
or additional information.
Pay attention to signaling symbols
throughout this manual with important
information.
Refer to the illustrations throughout this
manual for guidance.
Some pages have a boxed section on
the right to indicate potential physical
injury hazards and potential damages to
the units. ts important to read
understand and obey safety instructions.

CTM Marine Self-Contained CT Installation Manual
5
Introduction / Understanding Unit Labels
WARNING
THIS AIR CONDITIONER UNIT, INCLUDIN DUCT
OR, MUST NOT E INSTALLED IN A UEL AOR
AREA OR ENINE ROOM HERE AN OSSIILIT
O UEL AOR, ENINE EHAUST OR AN
OTHER TOIC ASES MA EIST, THIS UNIT IS
NOT AOR ROO AND COULD INTRODUCE
DEADL ASED INTO THE LIIN SACE I
IMROERL INSTALLED THIS COULD LEAD TO
DEATH OR DISAILIT O THE OCCUANTS SEE
ONNERS MANUAL
ELECTRICAL SHOCK HAZARD
DISCONNECT OLTAE AT MAIN ANEL
OR OER SOURCE INLET EORE
OENIN AN COER
AILRE TO COL WILL RESLT IN
INR OR DEATH
DANGER
CATION
HIH COMRESSOR
TEMERATURE IS NORMAL
DO NOT TOCH
RA
RERIERANT
Warning Labels
Type of efrigeran
ni inforaion
00000000
00000000000000000
nersaning ni Labels

CTM Marine Self-Contained CT Intallation Manal
Unit Overview
Specications
1. Blower
2. Evaporator
3. Drains
4. Reverse Valve
5. Handle
6. Base/Drain Pan
7. Compressor
8. Condenser Coil
. Coil tow
1. Coil now
11. Dt Rin
12. Drer
13. Condenser ir ilter a
14. Hi Pressre wit
  
6
Teni a l  a t a   n i t   e r  ie  Sei  a t i o n 
5/8 / 16
R410
48 5
odel o.
Capait B
Voltae V
Cle H / Pase P
npt Cool 
npt Heat 
se a/in 
oed Rotator mps 
eawater nlet
Connetion in/mm
Rerierant pe
et eit ls
C1 C16
10000 16000
10510 080 10510 080
5060/1
6 51105


15/10

88 6615
5/16 0/140/5
4 460

CTM Marine Self-Contained CT Intallation Manal
7
Tenial ata  Seiation  ienion
A B
C
D

Minimum Duct and Air Grille Sie er  aacit
20/508 20/508
10/25410/254
13.25/337 14/356
13.5/34312.5/318
Model No
Ain/mm
Bin/mm
Cin/mm
Din/mm
6/1535/127Ein/mm
CT10 CT16
BTUs
Min. Return Air rille s in / s m 100 / 645
60 / 387
6/152
28.3 / 183 38.5 / 248
7/178
80 / 516
200 / 120
Min. ul Air rille s in / s m
Min. Dut Dimeter in / mm
Min. Dut Are s in / s m
10 16
Dimenin

CTM Marine Self-Contained CT Intallation Manal
8
re-Intallation  Intallation erie
3. INSTALLATIN I
Supply Air Grille
Display Control
A/C Electrical Box
Overboard Discharge
Water Line
Thruull nlet
ShutO alve
nder the ater line
Above the ater line
Strainer
up
Coil no ose
A/C nit
Condensate
Drain
ose
Condensate
Drain
ose
nsulated
Duct
Coil Outo
ose
eturn Air
Grille
!
!

CTM Marine Self-Contained CT Intallation Manal
Read these instructions completely and then plan all connections which
must be made to the a/c unit including ducting, condensate drain line, seawater
inlet and outlet hoses, electrical power connection, location of control, and
seawater pump placement, to assure easy access for routing and future servicing.
Installation and servicing of this system can be hazardous due to system
pressure and electrical components. When working on this equipment, always
observe precautions described in the literature, tags and labels attached to the
unit. Follow all safety codes. Wear safety glasses and work gloves and place a re
etinguisher close to the work area.
Locating The Unit
ount unit with condenser/evaporator coil directly behind return
air grill or with at least  mm of air circulation clearance if
adacent to a bulkhead or other obstructions. ee Figure .
ompressor should be mounted away from return air grill if
possible to minimize sound level in cabin ound overs are
optional.
Blower Rotation
If needed, adust the blower by loosing lock screw and secure the
screw tightly once the blower is adusted at the optimal position
with the most direct airow discharge. ee gure .
!
>The a/c unit must be mounted to
alowatlevelsurface,inbottomof
locker, under a bunk or dinette seat, or in a
similar location. Failure to obey these
installation notices could result in damage to
the unit.
>To ensure proper airow, allow a minimum
clearance of 3 in. (76 mm in front of the
evaporator, and a minimum clearance of  in.
( mm in front of the return air grille.
CARBON MONOXIDE HAZARD
>ever install your air conditioner
in the bilge or engine room areas. ake sure
that the selected location is sealed from direct
access to bilge and/or engine room vapors. o
not terminate condensate drain line within
three feet ( cm of any outlet of engine or
generator ehaust systems, nor in a
compartment housing an engine or generator,
nor in a bilge, unless the drain is connected
properly to a sealed condensate or shower
sump pump.
>The a/c unit should never be placed such
that it can circulate carbon monoide, fuel
vapors or other noious fumes into the boats
living spaces. o not install or operate a self
contained unit in the engine room or near an
internal combustion engine. Failure to follow
this precaution could result in serious inury or
death.
!
4. UNIT INSTALLATION

nit Intallation  oatin Te nit  loer otation
EXLOSION HAZARD
>elfcontained units do not meet
federal reuirements for ignition protection.
o not install in spaces containing gasoline
engines, tanks, / cylinders, regulators,
valves or fuel line ttings. Failure to comply
may result in inury or death.
!
IURE 
Return Air Grill
Airow
4.0 (102mm) inch minimum clearance in front of return air grill
3.0 inch (76 mm) minimum clearance in front of condenser
Bulhead Airow
Return Air Grill
IURE 
. Looen atent crew
. Rotate the lower to eire oition
. Tighten the atent crew

Base Pan
Figure 4
Mounting Bracket Mounting Brackets
CTM Marine Self-Contained CT Intallation Manal
10
nit Intallation  on-Sli Iolation iration Tae  Montin raet  Condenate rain
Figure 3
Figure 5
5/8" Marine Grade Reinforced Hose
Stainless Steel Hose Clamp
5/8" Hose Bar
Base rain Pan
onSlip solation iration ape
Your a/c unit comes with a separate non-slip isolator tape design to dampen the vibration caused
by the operating a/c unit. Proceed to place the tape on the base of the A/C unit securely. See gure
3.
Once this tape is installed care must be taen when moving the a/c unit across mounting surfaces as the tape
can be damaged if ecessive dragging occurs.
Mounting Brackets
he four mounting bracets provided should be placed around edge of drain pan as eually spaced
as possible. Secure a/c unit to a at level mounting surface. racets are provided. Customer is to
supply the necessary hardware such as screw/bolts and washers. See igure .
Condensate rains
Place the  hose barbs supplied in their respective drain holes on the base pan. Secure the drain
hose with a stainless steel hose clamp. oute drain hose to a proper collection point. See gure .
CRB M HR
o not terminate condensate drain lines within three feet  cm of any outlet of engine or generator ehaust
systems nor in a compartment housing an engine or generator nor in a bilge unless the drain is connected properly to
a sealed condensate or shower pump.
!
Non-Slip Isolation Tape
ttae To ase an
Base Pan
Mounting Bracket Mounting Brackets

CTM Marine Self-Contained CT Intallation Manal
11
nit Intallation  tin
Ducting
Good airow is critical for the performance of the entire system. It is
highly dependent on the quality of the ducting installation. The ducting
should be run as straight, smooth and taut as possible minimizing the number of
90° bends (two 90° bends can reduce airow by .
ll ducting should
>e appropriately sized for each application.
>un as smoothly and taut as possible.
>ae as few bends or loops as possible.
>e securely fastened to preent sagging during boat
operation.
>ae all ecess ducting lengths trimmed off.
>ot be attened or ined.
>Insulated when located in high heat load areas (hull side,
mechanical compartments, etc..
>e properly protected against potential damage when
routed through open areas.
1. lide bac the berglass insulation duct to reeal the inner mylar duct hose.
2. ut the mylar duct hose around the mount ring.
3. To mae sure the mylar duct hose doesnt slide out, screw  stainless steel screws through the
duct hose into the mount ring. ae sure a few wires from the mylar duct are captured by the
screws.
4. lide bac the berglass insulation duct and coer the inner mylar duct hose, and mount ring.
ecure with highquality aluminum foil tape or any condensation inhibiting tape. ee gure .
Fiberglass Insulation Duct
Inner Mylar Duct Hose
Mount Ring
Screws
Screws
Aluminum Foil Tape

 

>If you install a transition box,
make sure that the total area of
supply air ducts going out of the transition box
is at least equal to the area of the supply duct
going into the box.
>The supply air grille should be installed as
high as possible in such a manner that provides
auniformairdistributionthroughoutthecabin.
>The return air grille should be located as low
as possible and as close to the a/c unit as
possible.
AR MID HAARD
>Do not route ducting through
engine room or any area where it may be
exposed to dangerous vapors or exhaust
fumes.
!
>Refer to the inimum Duct ir
rille ies per T apacity table
on page , for duct and grille sie references.
Figure 

CTM Marine Self-Contained CT Intallation Manal
12
nit Intallation  Seaater Ste
Seawater System
Refer to the drawings below for an overview of how the seawater
system should look like:
Consider the following instructions when setting up the seawater
system of your air conditioning unit. Failure to follow this procedure
will void the warranty:
1. Place a clam-shell type thru-hull tting as far away from the water
line as possible. Slots should be directed towards the bow to obtain
positive pressure in the suction line.
. Place a brone seacock on the thru-hull tting.
. Place a seawater strainer below the level of the pump.
. Connect the seacock and the strainer with a reinforced marine-
grade hose.
. he pump should be install at least  inches below the waterline
ecept when a self-priming pump is used.
. Connect the strainer and the pump with a reinforced marine-
grade hose.
. Connect the pumps outow to the coil inow See page  to
locate the coil inow with a  inch reinforced marine-grade hose.
. Connect the ac unit discharge from the coil outow See page 
to locate the coil outow with a  inch reinforced marine-grade
hose.
>The a/c seawater system should
have a dedicated thru-hull tting
for the pump.
>The inlet for the thru-hull, seacock, hose, and
strainer should not be smaller than the pump
inlet.
>The pump strainer assembly should be
installed with a gentle upwards slope from the
seacock to the pump.
>Keep all the piping as short as possible
without kinks or loops where air can become
trapped.
>Avoid  elbow ttings as much as possible.
>nsure that the pump head is rotated toward
the direction of water ow.
>se seal tape on all threaded connections.
>ouble-clamp all hose connections with
stainless steel clamps.
>onnect all metallic parts in contact with
seawater to the vessels bonding system.
teady upward ow from inlet to
unit then downward to outlet.
ump may be placed above
waterline if its self-primed.
>t is strongly recommended to
install an air-bleeder system both in
the suction line as well as immediately after the
discharge outlet of the pump.
1




AT 
2
1





2
AT 
AT 
AT 
1. Thru-hull tting
2. eacock
. trainer
. eawater ump
. oil inow
. A/ nit
. oil outow
. eawater utlet
CORRC
ater
low
ump and strainer must be below
waterline. ump head must be
rotated towards the water ow.
CORRC
oses must not have kinks or loops
where air can become trapped.
CORRC
trainer must be below waterline.
CORRC
ump may be placed above
waterline if its self-primed.
ater
low
1





2
1




2

CTM Marine Self-Contained CT Intallation Manal
13
nit Intallation  letrial Connetion
Electrical Connections
The following must be observed when making the electrical
connections:
1. Alternating Current (AC) grounding (green wire) must be
provided with AC power conductors and connected to the
ground terminal (marked "GR") at the AC power input
terminal block of the unit(s) per AC standard  or
euivalent.
. Connections between the vessels AC sstem grounding
conductor (green wire) and the vessels irect Current (C)
negative or bonding sstem should be made as part of the
vessels wiring per AC standard  or euivalent.
. hen servicing o replacing eisting euipment that
contains a chasismounted ground stud the service person
or installer must check the vessels wiring for the eistence of
the connection reuired in item  above.
Figure 6
Make sure all metallic parts in
contact with saltwater are properly
grounded and bonded properly to the vessel's
bonding system. Failure to follow these
instructions will void the warranty.
Each a/c unit installed requires a dedicated
circuit breaker. For installations of two or more
units sharing the same pump, the pump wires
will be connected to a pump relay panel ,
which in turn has its own dedicated circuit
breaker sied for the pump   ma.
Electrical connections in the bilge and/or
below the waterline should be sealed with heat
shrink type butt splices.
Field wiring must comply with 
electrical codes. ower to the unit must be
within the operating voltage range indicated
on he data plate. roperly sied fuses or 
circuit breakers must be installed for branch
circuit protection. efer to the data plate for
ma fuse/circuit breaker sie mfsand
minimum circuit capacity mca.
EECC C 
ou must turn off the a/c power
supply breaker before opening the electrical
bo and make the connections. Failure to obey
this instruction could result in serious inury or
death.
!
AC standards are available
from :
merican oat and acht ouncil
13 hird treet, uite 1
nnapolis, M 13
hone 1 
Fa 1 
uiliary
eat pade
erminal
round
in
isplay ack
igh/ow
ressure
witches
in
isplay ack
emperature
ensor ack
ater in/out
 utside emperature
ensor erminals
 
1 
 Fan  1 Fan 
1 alve 
1 ump 
 ump 
 omp. 
1 omp. 

CTM Marine Self-Contained CT Intallation Manal
14
nit Intallation  letrial Connetion
WHITE/BLACK YELLOW
COM L WHITE
A L1 E
WHITE
OAE
TAT
CAACITO
A L WHITE
LOW
E
WITCH
M O
M ELAY
AEL
EEI
ALE
OLEOI
HIH
E
WITCH
HIH  LOW EO
EE WITCHE
L WITCH OTIOAL
O OME IT
COM L1 BLACK
L1
L
L L1
AC
COMEO

CAACITO OAE
A
A

CAACITO
OTE A L
A E L
OLEOI L
WIE AE
LICE O
OME IT TO
BLK/WHT A L
OTE TAT CAACITO
A TAT ELAY AE
OT O ALL IT
O EE
BLACK
OAE
BLE
IMOTAT
OTICE THE OITIO
O L1 A L O
THE BOA
M L1 OAE
M L WHITE
Electrical ecti iara

CTM Marine Self-Contained CT Intallation Manal
15
ila Control
CTM-Marine Self-Contained unit are oatile it ot terotat urrentl in te aret
elo are te ot oon terotat dila ued  aor arine air onditioner
anufaturer
5. DISPLA L
Display 6-Pin Cable 8-Pin CableModel
Smart Touch /
Easy Touch
(wi-
SM
Passport /
Elite 

CTM Marine Self-Contained CT Intallation Manal
16
Troleootin
We have dedicated a whole section in our website (www.ctm-marine.com/troubleshooting/) in case you need further
assistance with your CTM air conditioning unit. This section in the user manual only provides basic troubleshooting.
Remember to contact your authorized dealer or customer service if you need assistance.
You may scan this QR code with your smart device for more troubleshooting.
The a/c circuit breaker is off. Turn on the unit's circuit breaker in the vessel's circuit breaker
panel.
Thermostat isoff. Turn on the thermostat.
Insufficient Voltage. (Check for a"Lo Cu"
alarm code in your thermostat's display)
Check the poersource of your vessel (shore/generator) for
proper voltage Check connections and iring Check ith
voltmeter if unit's voltage is the same as the source's voltage.
irflo is blocked or restricted.emove any obstructions in the air system Clean return air
grille ake sure ducting is asstraight and taut as possible.
an speed is manually set to lo. aise the speed of the fan or set it to auto mode.
Compressor or coil is iced. eferto "The compressor and/or fan coil is iced"
The airflo is blocked orrestricted. eferto "Lack of irflo" in this table.
The fan runs toslo. etthe fan speed to auto mode.
ucting issmallerthan it should. eferto page  in this manual and check the minimum duct
and air grille sies.
Thermostat set on heat mode. Change the mode to cool mode.
eaatertemperature too high. The unit caneffectively coolif the ater temperature is under
  ( C).
Loss of refrigerant gas. Check for leaks.
Thermostat setto cool mode. Change the mode to heat mode.
eaatertemperature too lo. The unit caneffectively heat if the ater temperature is over
  (C).
Loss of refrigerant gas. Check for leaks.
Circuit board might be shorted. Check the board and replace if it's shorted.
ighpressure may be present. eferto "igh pressure fault (is)"
eaater flo obstructed.
Check seacocks are opened Clean seaater strainer Check for
obstruction at the thruhull inlet Check for strong and steady
flo from the overboarddischarge.
eaater pump may be airlocked. eferto page  and  and make sure the plumbing is installed
correctly.
eaater pump notrunning. Check pump circuit breaker ison Check for voltage ake sure
the pump as not damaged from running dry.
6. TROUBLOOT

CTM Marine Self-Contained CT / C ntallation Manal
17
arrant
7. WARRANTY
CTM LIMITED NON-TRANSFERABLE WARRANTY
Citimarine Group (D.B.A) (hereinafter referred to as CTM)warrants their Air Conditioning Systems against defects in
material and wormanship for two () years effectie at the time of installation or essel registration date for original
euipment installation (M). This warranty period may not eceed three () years from the original date of sale
y CTM. CTM warrants the compressors and compressor racets against defects in material and wormanship for
one (1) year effectie at the time of installation or essel registration date for original euipment installation (M).
This warranty period may not eceed eighteen (1) months from the original date of sale y CTM. This warranty period
may e superseded y written contractual agreements.
a
eplacement parts are coered for si () months or the remainder of the original warranty period whicheer is longer.
a
The intent of the CTM warranty is to protect the original enduser of the Air Conditioning System from defects and
proide free repair and replacement of defectie parts in the manner proided herein. During the warranty period
the eclusie remedy will e for CTM at their discretion to repair or replace those parts which are demonstrated to
e defectie in material or wormanship.
a
hile warranty is proided to the original enduser it is to e administered and sericed through an authoried CTM
dealer in accordance with the CTM warranty policy or contractual agreement etween CTM and a second party. To locate
the nearest CTM authoried dealer for warranty serice isit httpwww.ctmmarine.com or call () 7 in SA.
Limitations: CTM specifically ecludesand limits warranty from the following
ormalwearofsericeparts(Filters and ses are not oered
emoalandreplacementofAirConditioningSystem.
Damagetoproductintransit.Allclaimsmustefilledwithcarrier.
mproperinstallationwhichisnotinaccordancewithalidsuppliedinstallationinstructionsorapproedM
applications.
Deteriorationduetonormalwearcorrosionausedamageaccidentimproperstorageoroperationlacof
reasonale maintenance.
Modificationofproductyalterationuseofnongenuinepartsorrepairyunauthoriedpersonnel.
conomiclossforepensesrelatedtotraelehicledisailitypersonalinuryorotherincidentalorconseuential
damages arising from any reach of this epressed warranty.
rodt reistration:
The Air Conditioning System can e registered y isiting .tm-marine.omarrant. Aproof of purchase
is reuired for all Air Conditioning Systems that are not registered.
TIS WARRANTY IS NON-TRANSFERABLE. IMLIED WARRANTIES INCLDIN TAT OF MERCANTABILITY AND
FITNESS FOR A ARTICLAR ROSE ARE ERESSLY LIMITED TO TE DRATION OF TIS WARRANTY. CTM
DISCLAIMS ANY LIABILITY FOR SECIAL INCIDENTAL OR CONSEENTIALDAMAES.
SOME STATES AND CANADIAN ROINCES DO NOT ALLOW TE ECLSION OR LIMITATION OF INCIDENTAL OR
CONSEENTIAL DAMAES SO TE ABOE LIMITATION OR ECLSIONSMAY NOT ALY TO YO. TIS WARRANTY
IES YO SECIFIC LEAL RITS AND YO MAY ALSO AE OTER RITS WIC ARY AMON STATES AND
CANADIAN ROINCES.
CTM RETAINS TE RIT TO MODIFY TESE WARRANTY TERMS WITOT NOTICEIN ORDER TO COMLY WIT
OLICY OR LAWS OERNINWARRANTY ISSES IN STATES OR CONTRIES AIN SECIFIC REMEDIES DIFFERIN
OR ADDITIONAL TO TOSE DESCRIBED WITIN TIS DOCMENT.

CTM Marine Self-Contained CT Intallation Manal
18
arrant
You can register your CTM unit or e a cai
y isiting ctarinearranty
or y scanning te coe eo it your sart eice