Procool Marine Air Conditioner User Manual

Marine Air Conditioning

USER MANUAL

EWRA45CTM

EWRA32CTMMODEL:

Thanks for Your Choice

Content

1.Introduction

2.Product Overview

3.Installation

4.Controller

5.Wiring Diagram

1

1

3

7

14

Note : Please remove the top cover

before removing the mantainance panel.

MARINE AIR CONDITION

1

1

Thank you for purchasing our self contained marine air conditioning system.

Our system is technically advanced system available.

As the technology leader, We have the experience and technical resourcesto continually develop and produce the innovations that result in better quality,

more efficient and more cost effective marine air conditioning products. The

marine air conditioner unit has been specifically designed for use in the marine

environment. The configuration and all the materials and components that go

into the manufacture of this unit are extensively tested for efficiency and durability

in this sometimes harsh environment.

With proper installation, operation and maintenance, our marine air conditioning

system should give you years of trouble free comfort on board your boat.

This manual will inform you of the different components that comprise the system and provide the basic information that you will need to correctly install

a fully operational self contained air conditioning system on your boat.

. INTRODUCTION

2.PRODUCT OVERVIEW

It may be helpful to familiarize yourself with the major components to your

system as you unpack them. There are several basic components that make

up a complete marine air conditioning system:

2-1.Inner Structure

1.compressor

2.condenser

3.

4.electrical box

5.4 way valve

6.fan

Coaxial heat exchanger

1

2

3

45

6


2

2-2.Outer Structure

1

Please notice the dimension of water in/outlet is 3/4

How does the marine air conditioning unti work?

In the self contained unit, refrigerant is circulated through the system.

The refrigerant is started from the compressor as a high pressure, high

temperature gas and then goes into the seawater condenser. In the cond-

enser, the gas gives off the heat acquired during compression. As this

heat is rejected to the water, the gas changes state from a gas to a liquid.

The liquid refrigerant passes through the capillary tube whereit experien-

ces a decrease in pressure. The lower pressure liquid exits the capillary

tube and enters the evaporator. While the cabin air is drawn acrossthe

evaporator, it is cooled as the refrigerant absorbs the heat from it and the

moisture condenses out of it. The now cool, dry air is supplied back to the

cabin by the blower. As the refrigerant absorbs the heat from the air, it

begins to change state from a liquid back to a gas. This gas then passes

back to the compressor, where the cycle begins again.

Figure1 Typical Duct/ Grille Kits

Duct / Grille Kit

To transfer the air flow from the

self contained unit to the area that

you want to heat or cool,

you will need insulated flex duct, supply and return

grilles, grille to flex duct transition boxes.

following diagrams illustrate typical Duct / Grille Kits:

.

3.INSTALLATION

440mm

728mm

30

8m

m

35

0m

m

2 3 4 5

1.Maintenance door

2.Air outlet

3.Water outlet

4.Water inlet

5.Power supply

42

3m

m

748mm


3

It is very important that there is adequate space for air to return to the self contained

unit. While the evaporator of the self contained unit does not have to be directly

behind the return air grille, there must be an air path of the same area between the

return air grille and the self contained unit. Never mount the front of the unit any closer

than two inches from a bulkhead as this will restrict the air flow into the evaporator coil.

The correct minimum grille sizes for each self contained unit are shown in the table

below. Return air grilles can be larger than listed ( this is one case where bigger is

better) , however, supply grilles should not be any larger than 25% over the recomm-

ended sizes. A supply grille that is too large will not properly disperse the air into the

room causing hot spots. In either case the grilles must not be any smaller than the

minimums listed. Small grilles cause decreases in system performance, evaporator

coil icing or ( in the heating mode ) unit shut down due to high head pressures.

To make the system self purg

-ing,there must be a steady

uphill run from the seawater

inlet to the seawater strainer

through the pump up to the

self contained unit condenser

and then downhill to the over

board (See Figure2).This will

allow any air that enters the

seawater inlet to bleed off

naturally through tothe sea-

water system.

The pump can not be run with

-out a supply of water. If they

are run dry, internal damage

will be caused.

Diameter, in/mm

Minimum Duct

5,000 32 / 206 64 / 412 4" / 100mm

7,000 40 / 258 72 / 464 5" / 125mm

10,000 48 / 309 100 / 645 5" / 125mm

12,000 60 / 387 120 / 774 6" / 150mm

16,000 72 / 464 144 / 929 6" / 150mm

24,000 120 / 774 200 / 1290 7" / 175mm

Minimum Grille and Flex Duct Sizes

Return Grille2

/ cm2

in

Figure 2 Typical Seawater Plumbing Circuit

Supply Grille2

/ cm2

in

Unit Capacity

BTU/H

Seawater pump:Seawater pump should be mo

-unted below the ship running

water line.

self contained unit

view

facing

aft

overboard discharge running water line

seawater

strainer

seawater

pump

seacock

thru hull

scoop

seawater pump

must be below the

water line under

all conditions

seawater

inletopen area of scoop facing forward

In all applications the self contained unit should be installed as low as

possible and the air discharge should be at least three feet above the floor.

The best possible configuration is to have the air discharge at or near the

ceiling level and the return air near the deck or floor. The reason for mount-

ing in this manor is because cold air is more dense than ambient air and it's

natural tendency is to fall to the lowest point in the cabin after leaving the

discharge grille. This type of installation creates an ideal air flow forcondit-

ioning and dehumidifying the air, and prevent short cycling.

THEY SHOULD NEVER BE MOUNTED IN THE ENGINE ROOM OR

BILGE AREA WHERE THEY COULD DRAW TOXIC FUMES INTO THE

UNIT AND THEN DISCHARGE THEM INTO THE LIVINGAREA.

The unit should be securely fastened to a firm, level surface using the mounting clips .

On a hot,humid day several gallons of water per hour can be removed from the air by

the self contained unit. Any lines, hoses or electric cables run between decks should

be sealed away from any exhaust or bilge vapors. Do not terminate drain lines near

engine exhaust outlets nor in the bilge or engine room unless properly sealed to a sump.

As to the installation of drain outlet fittings, please pay attention to the point

as follows:

Figure 3 Typical Self Contained Unit Installations

It is not advisable to run the drain lines into the bilge where the condensate

can become stagnant and foul smelling when mixed with seawater.


4


5

Electrical connections on all our units, are made on the terminal strip located

inside the electric box. To access the terminal strip, remove the screw from the

top of the electric box and pull the box cover up and clear of the electric box. The

terminal strip is labeled for proper connection of the electric supply, ground wires

and pump circuits. The correct sizewire should be used to supply power to the unit

(See Table ). If two or more self contained units use the same seawater pump, the

pump wires will be connected to a pump relay.

Recommended Wire

Unit Capacity BTU/H Voltage Wire Size AWG

5,000 115 14

7,000 115 14

10,000 115 12

12,000 115 12

16,000 115 10

7,000 230 14

10,000 230 12

12,000 230 12

16,000 230 12

24,000 230 12

All self contained units must be properly grounded and connected to the ships

bonding system. All pumps, metallic valves and fittings in the seawater circuit

that are isolated from the unit by PVC or rubber hoses must be individually

bonded to the vessels bonding system. Proper grounding and bonding will help

eliminate the possibility of corrosion due to stray current or voltage.

4.CONTROLLER


6

Change mode(This unit

will start under the

default mode.when

nothing is selected.)

Inlet temperature

Temperature displaying

mode

On/off switch

Data set mode

4.1 The appearance of wire controller and its key functions

LCD Srceen

The unit can be pre-programmed by the wire controller and will

then be run automatically.

Operation parameter

sequence

Press these buttons separately to

scroll through water in, water out, coil

and outdoor air temperature.

TEMP

SET IN NO.

C

MIN

ROOM

Ambient

temperature

OUT

MIN

C

AUX

Use this button and < >< >

button to set running parameter.

Press this button once to get you

intoset parameter manual. Press

< > and < >button to increase or

d e c r e a s e t h e d a t a v a l u e .

Press button twice to

change to another parameter .If

no button is pressed for in 5

seconds, the screen will return to

the main manual.

Start auxiliary

electrical heating

Auxiliary electrical

heating

Outlet temperature

Heating mode

Data and error

number

4.2 Application range.

This intelligent wire controller can be used to control the air-cooled heat pump series. By using it, you can choose single compressor system or two compressors system.

4.3 Initialization and standby state.

12

MIN

TEMP

ON

OFF

%

h

%C FC F

AUTO

hMIN

INSET VALVE OUTROOMNO.

HUM

FAN

M AUXSET

TEMP

C

ROOM

M AUXSET

Initialization

Standby

Graph1-1 Graph1-2


7


8 9


a. When you turn on wire controller, it will display the data full screen. Meanwhile, the wire

controller will get a communication connection with the heat pump. If the connection can

not be successful within ten seconds, that is to say, the connection failed. The heat pump

can only be control by its own emergency switch. On the contrary, if the connection can

be successful within ten seconds, the wire controller can also work as well as the heat

pump's own emergency switch.

b. In the standby state, the wire controller displays water inlet temperature and the

current running mode.

4.4 Press ON/OFF button to turn on/off the heat pump.

TEMP

C

ROOM

M AUXSET

C

4.5 Mode selection.

a. In the ON or standby state, pressMODEbutton to choose the heating or cooling mode

as the graph3-1 and 3-2 shows.

b. In the ON state the wire controller can display air inlet temperature, air outlet

temperature and its running mode

c. In the OFF state, the wire controller display water inlet temperature and current running

mode.

CC

IN OUT

M AUXSET

Cooling

CC

IN OUT

M AUXSET

Heating

C C

Graph3-1 Graph3-2

Graph2

:this symbol is meant to be in a heating mode.

:this symbol is meant to be in a cooling mode.

the swimming pool heat pump parameter default setting is in the single heating mode, so as

long as you press the button, the heating symbol will appear.

4.6 Temperature setting.

TEMP

C

ROOM

M AUXSET

C

VALVENO.

AUX

C C

Graph4-1 Graph4-2

Graph4-3

4.7 Other parameters setting.

Parameter 00 air inlet

temperature during cooling

mode

Parameter01: air inlet

temperature during heating

mode

a. In the standby mode, press SET button to enter into the parameter setting page.as

graph 4-1 shows

b. Press or button to set the parameters. 00 stands for the air inlet temperature

setting in cooling mode. as the graph4-2 shows, 12 is real air inlet temperature.

c. After setting the air inlet temperature, press SET button to turn to the next setting

page.01 stands for the air inlet temperature setting in heating mode. as the graph4-

3 shows, 27 is real air inlet temperature. And press or button to choose

parameter you want

d. The screen will return to main page if you don't press any button within five seconds and

the screen display the air inlet temperature or air outlet temperature in the ON state or

environmental temperature in the OFF state.

f. In the ON state, you can see the current data of all kinds of parameters, but you can not

change it.

NO.

AUX

C

OUT


10

a. In the standby state, press SET button to enter into parameters setting page as the

graph 4-1 shows.

b. Press and button at the same time, when you hear tick sound, release the

buttons and press or button again to set the current page parameter as

graph 5-1 shows.

c. After setting it, press SET button to enter another parameters setting page, press

or button to set the parameter of the current page.

d. Repeat the above steps to alter other parameter setting. The screen will return to main

page if you don't press any button within five seconds and the screen display the air

inlet temperature or air outlet temperature in the ON state or environmental

temperature in the OFF state.

f. In the ON state, you can see the current data of all kinds of parameters, but you can not

change it.

MIN

VALVENO.

AUX

C

VALVENO.

AUX

MIN

VALVENO.

AUX

VALVENO.

AUX

VALVENO.

AUX

C C

Graph5-1 Graph5-2

Parameter 03: Initial

defrosting temperature

Parameter 02:

Defrosting cycle

Parameter 05: End time

of defrosting

Parameter 04: Final

defrosting temperature

Parameter 07: Power

down memory function:

0" stands for on

1" stands for yes

Parameter 06:

Number of system:

1" stands for single system

2" stands for double system

Graph5-3 Graph5-4

Graph5-5 Graph5-6

VALVENO.

AUX

C

VALVENO.

AUX

Parameter 08: Model

0" stands for cooling only

1" stands for heating and cooling machine

2" stands for electrothermal machine

3" stands for heating only

4.8 Parameters display.

a. In the ON or OFF state, press or button, you can see all kinds of temperature

parameters.

b. You can see the air inlet/ outlet temperature, defrosting temperature sensor

1,defrosting temperature sensor 2 and water inlet temperature.

c. If you don't press any button within five seconds, screen will return to main page and

display air inlet/outlet temperature in the ON and display the water inlet

temperature in the OFF state.

CC

IN OUT

AUX

C

AUX

air inlet/outlet

temperature

Defrosting temperature

sensor 1

C

AUX

C

ROOM

AUX

Graph5-7

C

Graph6-1 Graph6-2

water inlet temperature

Defrosting temperature

sensor 2

Graph6-3 Graph6-4


11


12

4.9 Fault and protection

a. When E1, E2, E3, E4, E8 faults happened, the wire controller will display fault code

accordingly. As the graphs show:

AUX

Fault EE01:

Fault in system 1

Fault EE02:

Fault in system 2

Fault EE03:

Water flow fault

Fault EE04:

High/Low pressure

fault function

Graph7-1 Graph7-2

Graph7-3 Graph7-4

Fault EE08:

Fault in communication connection

b. When P1, P2, P3, P4, P5, P7 protection take place, wire controller will display the

protection code accordingly. As the graphs show:

Graph7-5

Graph8-1 Graph8-2

Fault PP01:

Fault airr inlet

temperature sensor

Fault PP02:

Fault air outlet

temperature sensor

Graph8-3 Graph8-4

Graph8-5

Fault PP03:

Fault in defrosting

temperature sensor 1

Fault PP04:

Fault in defrosting

temperature sensor 2

Fault PP05:

Fault in water inlet

temperature sensor

Parameter Function Range Value

00Air inlet temperature during

cooling mode8-28 25

01Air inlet temperature during

heating mode15-60 23

02 Defrosting cycle 30-90Min 40Min

03 Initial defrosting temperature 0--30 -3

04 Final defrosting temperature 2-30 13

05 End time of defrosting 1-12Min 8Min

06 Number of system 1-2 1

07 Power down memory function 0-1 0

08 Model 0-3 1

4.10 Parameter


13


14

5.WIRING DIAGRAM

MODEL: EWRA32CTM


15

K3

pum

p r

ela

y

K2

fan r

ela

y

A1

main

contr

ol board

A2

line c

ontr

oller

K1

com

p r

ela

y

R1

air inle

t sensor

R2

air o

utlet sensor

R3

coil s

ensor

R4

wate

r in

let sensor

M1

To

wa

ter

pu

mp

K2

CO

M

NO

R1

R2

R3

NN

NL

COMP2

SENSOR

INWT

PIPE1

OURWT

PIPE2

ROOMT

SENSOR

SENSOR

SENSOR

SENSOR

COMP1

R4A

1

K3

F1

KYOUT

4-WAY VALVE1

FAN

PUMP

AUXHEATER

4-WAY VALVE2

MDOUT

NET

GND

KYIN

MDIN

12V

GND

GND

SYS

12V

GND

GND

FROST

WATER

GND

CH

ILL

ER

-30

0

MS

ET

AU

X

A2

NO

CO

M

V1

T1

fan m

oto

rM

2

M1

com

pre

ssor

pre

ssure

sw

itch-low

F1

V1 4 w

ay v

alv

e

21

LN

R

C

S

M2

T1 To p

ow

er

supply

CO

M

NO

K1

12

K4

To

wa

ter

flo

w s

witch

K4

4 w

ay v

alv

e r

ela

y

MODEL: EWRA45CTM

K2

pu

mp

re

lay

K1

fan

re

lay

A1

ma

in c

on

tro

l b

oa

rd

A2

lin

e c

on

tro

lle

r

KM

1co

mp

AC

co

nta

cto

r

R1

air in

let

se

nso

r

R2

air o

utle

t se

nso

r

R3

co

il s

en

so

r

R4

wa

ter

inle

t se

nso

r

K3

4 w

ay v

alv

e r

ela

y

M1

To w

ate

r pum

p

K1

CO

M

NO

R1

R2

R3

NN

NL

COMP2

SENSOR

INWT

PIPE1

OURWT

PIPE2

ROOMT

SENSOR

SENSOR

SENSOR

SENSOR

COMP1

R4A

1

K2

F1

KYOUT

4-WAY VALVE1

FAN

PUMP

AUXHEATER

4-WAY VALVE2

MDOUT

NET

GND

KYIN

MDIN

12V

GND

GND

SYS

12V

GND

GND

FROST

WATER

GND

CH

ILL

ER

-30

0

MS

ET

AU

X

A2

NO

CO

M

V1

T1

fan

mo

tor

M2

M1

co

mp

resso

r

pre

ssu

re s

witch

-lo

wF

1

V1

4

wa

y v

alv

e

21

LN

R

C

S

M2

T1

To

po

we

r su

pp

ly

12

K3

To w

ate

r flow

sw

itch

KM

1

1 2 3 4 5 6 7 8 9 10

Procool Marine Air Conditioner User Manual

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Transcript of Procool Marine Air Conditioner User Manual