ClimateMaster DOAS CM3500 Manuale di installazione e funzionamento

DOAS CM3500

Controller

Application, Operation

& Maintenance

97B0065N01

Rev: 31 July, 2013

Table of Contents

Dehumidiﬁcation Equipment Standard Limited Warranty 3

Installation 4

IAQ Controller Details 7

Service Menu 17

Factory Conﬁguration 23

Alarm Menu 29

Remote Room Sensor Conﬁguration 32

Hardware Details 33

Speciﬁcations 35

Points List 39

Revision History 48

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

DOAS CM3500 Controller

Rev.:31 July, 2013

ClimateMaster Water-Source Heat Pumps

This Page Intentionally Left Blank

THE SMART SOLUTION FOR ENERGY EFFICIENCY

DOAS CM3500 Controller

Rev.:31 July, 2013

climatemaster.com

Dehumidiﬁcation Equipment Standard Limited Warranty

 CAUTION! 

CAUTION! ONLY TRAINED, QUALIFIED PERSONNEL

SHOULD INSTALLAND/OR SERVICE CLIMATEMASTER.

SERIOUS INJURY, DEATH AND PROPERTY DAMAGE

CAN RESULT FROM IMPROPER INSTALLATION/SERVICE

OF THIS EQUIPMENT HIGH VOLTAGE ELECTRICAL

COMPONENTS AND REFRIGERANT UNDER PRESSURE

ARE PRESENT.

DEHUMIDIFICATION EQUIPMENT

STANDARD LIMITED WARRANTY

ClimateMaster warrants the dehumidifying unit to be free

from defects in materials and workmanship subject to the

terms, conditions and limitations stated herein.

Terms

ClimateMaster warrants all components (except as noted)

for a period of two (2) years from the date of shipment.

This warranty shall be limited to the supply of new or

rebuilt parts for the part which has failed because of

defects in workmanship or material, and does not include

the cost for labor, transportation or other costs not herein

provided for. Replaced parts are warranted only for the

remaining portion of the original warranty period.

Conditions - The warranty is subject to the following

conditions:

1. The unit must be properly installed and maintained in

accordance with the ClimateMaster “Installation and

Operation Manual” provided with each unit and/or

other documentation provided.

2. The Start-Up Report must be completed and returned

to ClimateMaster within 30 days of the start-up.

3. This warranty shall not apply to any part that has

been tampered with, or has been subject to misuse,

negligence or accident. A warranty can be obtained for

altered equipment but only with written consent from

ClimateMaster.

4. The following parts and components are excluded

from the warranty: belts, ﬁlters, driers, fuses and

refrigerant.

5. Refrigerant coils or other components that corrode

due to improperly balanced pool chemistry or

corrosive air quality will not be warranted.

6. All replacements or repairs will be FOB Oklahoma

City, OK.

7. This warranty shall be null and void if defects or

damages result from unauthorized opening of the

refrigerant circuit, tampering with factory set controls,

or operating outside the original design conditions.

8. ClimateMaster shall not be liable for labor costs

incurred in diagnosing the problem, or the removal or

replacement of the part or parts being repaired.

9. ClimateMaster must preauthorize all warranty

coverage described herein.

Extended Warranty

Your ClimateMaster unit may have extended warranties

beyond this Standard Limited Warranty document.

Extended warranties are only available at the time of the

purchase of the original equipment. These extended

warranties are covered under a separate document

and their terms and conditions are separate from

this document. It is mentioned in this document for

informational purposes only. Any and all incidental or

consequential damages are expressly excluded from

this warranty. Some states do not allow the exclusion of

incidental or consequential damages for personal injury,

so the above limitations may not apply to you for certain

damages. This warranty gives you speciﬁc legal rights,

and you may also have other rights, which vary from state

to state. No person or representative is authorized to

make any warranty or assume any liability not strictly in

accordance with the aforementioned.

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

DOAS CM3500 Controller

Rev.:31 July, 2013

ClimateMaster Water-Source Heat Pumps

Your ClimateMaster controller is designed for precise

monitoring and control of air temperature and relative

humidity (RH) within a conditioned environment. This

CM3500 control system is easy to install and operate. It

features either an internal display terminal (IDT), as part of

the controller, or a wall-mountable remote display terminal

(RDT), in cases where the controller mounted display or IDT

would prove hard to view or use. Both allow you to view and

adjust setpoints and modes of operation. They also indicate

the operating status of major components inside of the

dehumidiﬁer. Most sensors and inputs have been factory-

installed and wired inside of the dehumidiﬁer. In most cases,

you need only mount and wire the supply air temperature

sensor and, if provided, the RDT. The RDT, which is simply

an interface tool, contains no sensors. You do not need to

install it in the room you wish to dehumidify. If purchased

with your system, CO2 and remote room sensors may

require mounting as well.

Your controller is provided with a duct-mountable

temperature sensor for the supply air. If the unit was

purchased with the zone reset option, it also has one or

multiple remote room sensors. Additionally, if the unit

was purchased with the CO2 option, it has an indoor and

outdoor CO2 sensor.

• A duct-mount sensor is normally used in applications

where continuous blower operation is desired. A

duct-mount sensor helps ensure consistent conditions

throughout the space. Install the duct-mount sensor in

the supply air duct.

• ClimateMaster DOAS ordered with the zone reset

option are supplied with a remote room sensor. Up to

Installation

CAUTION! A potential drawback of this sensor is that it

relies on a continuous stream of air moving past it. Using a

duct-mount sensor with a non-continuous blower may lead to

short-cycling of the refrigeration compressor..

CAUTION! Undersized wiring will cause inaccurate sensor

readings. Do not run sensor wiring adjacent to, OR in the

same conduit as, wires carrying more than 24 VAC.

CAUTION! Do not mount the sensor in a section of duct where

false readings may occur due to dead air regions, solar heat

gain or thermal losses in winter. Do not mount the sensor where

water is likely to drip on it. Install two (2), 18 gauge (0-500 feet)

OR two (2), 24 gauge (0-100 feet) wires from the sensor to the

labeled terminal strip in the control panel of the dehumidiﬁer.

(See your wiring schematic for connection details.)

 CAUTION! 

CAUTION! Undersized wiring will cause inaccurate sensor

readings. Do not run sensor wiring adjacent to, OR in the

same conduit as, wires carrying more than 24 VAC.

 CAUTION! 

Figure 1: CM3500 Room Sensor

Figure 2: CO2 Sensors

four of these sensors may be wired to the system.

This wall-mountable display is an IP30 rated device

Operating conditions must be between 32.0°F and

120.0°F and less than 85% RH. The controller’s RS485

serial interface communicates via three-way plug-in

terminals. Install a twisted pair plus shielded cable,

20-22 AWG. Total length of the network must not

exceed 1,500 feet. The capacitance between the wires

must not exceed 90 pF/M. (See your wiring schematic

for connection details.) These remote devices require

a separate 24Vac 50/60HZ 1.5VA power connection.

Provide a dedicated 250 mAT fuse for each sensor.

Use a class 2 safety transformer with a minimum

rating of 4VA. If the sensor is wired to F1 and F2 of

the dehumidiﬁer control panel terminal, G0 must be

connected to F2.

• ClimateMaster DOAS ordered with the CO2

control package require sensors for the indoor

THE SMART SOLUTION FOR ENERGY EFFICIENCY

DOAS CM3500 Controller

Rev.:31 July, 2013

climatemaster.com

CAUTION! Do not run sensor wiring adjacent to, OR in the

same conduit as, wires carrying more than 24 VAC.

CAUTION! Moisture can damage the circuitry of the

display. The display can either be mounted directly to the

dehumidiﬁer or located up to 20 feet away using the cable

that came with the display.

CAUTION! Do not run the RDT wiring in the same conduit

as, OR adjacent to wires carrying over 30 VAC.

 CAUTION! 

This prevents wide ﬂuctuations in room air temperature. It

also prevents the heater from trying to heat the room while

the dehumidiﬁer is running in the cooling mode.

• The standard ClimateMaster CM3500 Controller

provides a dry contact closure to operate the auxiliary

space heater. The contact closes to energize a heater

(may be supplied by others) which has its own power

source. Install two wires from the thermostat terminal

blocks on the heater to the terminal strip on the control

panel of the dehumidifier. (See your wiring schematic

for connection details.)

• As an option, ClimateMaster will provide a

proportional 0-10 VDC direct-acting signal to

modulate a heating coil control valve or other auxiliary

modulating heater. Most proportional valves have

either three (3) or four (4) terminals for ﬁeld-installed

wiring.

a. Four-terminal valves have two terminals for 24 VAC

power and two terminals for the signal input.

b. Three-terminal valves have one terminal for the

“hot” 24 VAC input, a second terminal for the

“positive” signal input and a third, common

terminal for the “neutral” 24 VAC input and the

Figure 3: Optional RDT

“negative” signal input. You must follow the

instructions included with the valve cut sheet.

Observe the proper polarity or you may damage

both the valve and the controller. (See your wiring

schematic for connection details.)

The optional RDT must be mounted in a dry, non-

corrosive environment. Operating conditions must be

between 0.0°F and 140.0°F and less than 90% RH.

The optional RDT is an IP40 device and is powered

through the cable provided. If a longer length is required,

there are two options. For locations of the RDT up to 150

feet, use a standard 24 AWG, 6 conductor phone cable.

For locations of the sensor up to 1,500 feet, use 22 AWG,

3 twisted pair cable. (See your wiring schematic for con-

nection details.) Pull the connector through the hole in

the back of the mounting bracket. Attach the bracket to

the wall. After plugging the cord into the back of the RDT,

feed any extra wiring back into the hole of the mounting

bracket and gently snap the RDT into the bracket.

and outdoor CO2 levels. These measurements are

used to determine the CO2 differential level in the

conditioned space. This differential is the variable

compared to the CO2 setpoint and used in the

control loop to provide more or less outdoor air into

the conditioned space. The outdoor CO2 sensor is

installed in a protective enclosure and is designed to

operate in outdoor conditions ranging from -40°F to

158°F. 24VAC power is required for this device and

the output is 4-20mA. (See your wiring schematic for

connection details.) The indoor CO2 sensor is installed

in a high impact ABS enclosure and has an operating

temperature range of 32°F to 122°F. 24VAC power is

required for this device and the output is 4-20mA.

(See your wiring schematic for connection details.)

Note: You must use the ClimateMaster CM3500 control

system to control or interlock with the room heating system.

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

DOAS CM3500 Controller

Rev.:31 July, 2013

ClimateMaster Water-Source Heat Pumps

The CM3500 microprocessor controller is a powerful,

ﬂexible controller with many useful features including:

• Display of room air temperature, relative humidity and

refrigerant pressures.

• Display of equipment operating status such as

dehumidification and cooling.

• Display of alarms for abnormal conditions such as

sensor failures or tripped safety controls.

• An optional seven-day occupancy timer which can

control outdoor air dampers (if used) to bring in fresh

air when the dehumidifier is an occupied state.

• A convenient, easy-to-understand display interface

which allows the operator to view and change

setpoints and time schedules.

The remote terminal allows the operator to monitor the

operation of the dehumidiﬁer and view the alarm screens

and history to insure proper dehumidiﬁer operation. It is

important that the remote terminal remains functional for

safe and efﬁcient unit operation. If you think the remote

terminal is not functioning correctly, refer to the table in

Section 1.7.1 that follows.

• The RDT allows the operator to monitor the operation

of the dehumidifier and view the alarm screens and

history to ensure proper dehumidifier operation. It

is important that the RDT remains functional for safe

and efficient unit operation. If you think the RDT is not

functioning correctly, refer to table 1 that follows.

Table 1: RDT Troubleshooting

Problem Solution

No LEDs lit on the remote

terminal.

No power is getting to the remote

terminal. Check ﬁeld wiring between

remote terminal and controller.

Remote terminal shows:

“NO LINK”.

The display address has been altered.

Press the UP, ENTER and DOWN keys

together for 4 seconds and set the display

address to 32.

Red alarm LED is lit.

The system has experienced an alarm

and is waiting for it to be acknowledged.

Press ENTER from the Alarm Screen.

If the red LED stays lit, clear the alarm

condition and then press ENTER from the

Alarm Screen.

If the remote terminal is not functioning after review of the above, consult

ClimateMaster’s Service Department at (405) 745-6000.

THE SMART SOLUTION FOR ENERGY EFFICIENCY

DOAS CM3500 Controller

Rev.:31 July, 2013

climatemaster.com

IAQ Controller Details

Figure 4: Remote Display Terminal

Figure 5: Internal Display Terminal

Menu Overview and General Instructions

The CM3500 Controller is pre-programmed and

conﬁgured at the factory for use in the application you

have speciﬁed. The remote display terminal (RDT -

Figure 4) or the internal display terminal (IDT - Figure 5)

allows the operator to monitor and adjust the setpoints

of your ClimateMaster DOAS. The RDT has an LCD

screen and 6 keys. The keys on the left hand side of the

remote terminal, top to bottom, are the ALARM key

shown as an alarm bell, PROGRAM key abbreviated

“Prg” and the ESCAPE key abbreviated “Esc.” The

keys on the right hand side of the remote terminal, top

to bottom, are the UP key shown as an up arrow, the

ENTER key shown as a left arrow and the DOWN key

shown as a down arrow. The IDT also has an LCD screen

and 6 keys. The keys on the top row to the right of the

LCD screen are the ALARM key shown as an alarm bell,

PROGRAM key abbreviated “Prg” and the ESCAPE key

abbreviated “Esc.” The keys on the bottom row to the

right of the LCD screen are the UP key shown as an up

arrow, the DOWN key shown as a down arrow and the

ENTER key shown as a left arrow.

The Home Screen, displaying the ClimateMaster

logo, shows 2 items below it; the current supply air

temperature and the current unit status. The IAQ

displayed in the upper right of the screen indicates

that the product series of the program installed in the

controller is for Indoor Air Quality. Below this line, “Esc

Menu” indicates that if the Esc key is pressed, the Main

Menu will be displayed. Pressing Esc on any other screen

will take you back one screen. Menu screens allow the

user to select from a series of actions. The action that

is capitalized on the screen is selected by pressing the

ENTER key. To cycle through the selections on a menu

screen, use the UP and DOWN keys. If setpoints or

selections can be altered on a screen, the ENTER key

will cycle through those items. Once the cursor is over

an item, the UP and DOWN arrow keys will modify the

setting. Numeric values require that the ENTER key be

pressed to accept the value. An “on” or “off” selection is

altered as soon as the UP or DOWN keys are pressed. To

view the alarms from any menu, simply press the ALARM

key. The UP and DOWN keys will display any active

alarm. When an alarm is triggered, the red LED behind

the ALARM key will light and remains on until the alarm

is acknowledged. Alarm acknowledgement and history

instructions are shown on the main Alarm Screen. To

escape from the alarm screens, press the Esc key and the

Home Screen will be displayed. Screens which display a

small up arrow in the upper right and a small down arrow

in the lower right are part of a series of screens which can

be accessed by pressing either the UP or DOWN arrow

keys. If the operator has not pressed a key for an hour,

the remote terminal will return to the Home Screen.

Main Menu

Pressing the Esc key from the Home Screen displays the

MAIN MENU (Figure 6). This menu allows the operator

to select the STATUS MENU, Setpoint Menu, set a

Temporary Occupancy, change the Occupancy Schedule

and view the Unit Revision.

Figure 6: Main Menu

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

DOAS CM3500 Controller

Rev.:31 July, 2013

ClimateMaster Water-Source Heat Pumps

To return to the Home Screen, press the Esc key.

• Status Menu - Selecting the STATUS MENU from the

MAIN MENU allows access to the Modes & Time, I/O

Status and Starts & Run Times.

Figure 7: Status Menu

To return to the MAIN MENU, press the Esc key.

• Modes & Time - Selecting Modes & Time from

the SERVICE MENU displays a text explanation

of the unit. The Occupied state (either Occupied

or Unoccupied) is shown as well as the unit status.

The Unit Status will show one of the following

states:

• Zone Satisfied/Off

• Heating Required

• Cooling Required

• Dehumidifying

• Dehumid/Heat

• Dehumid/Cool

• Low Suction Pressure

The Compressor Command On/Off, Auxiliary Heat

On/Off and current date and time will also be

shown. If any compressor is waiting for its non-

short cycling timer to time out, this will be shown

here as well.

Figure 8: Modes & Time

Figure 9: I/O Status

To return to the STATUS MENU, press the Esc key.

• I/O Status - Selecting the I/O Status from the

STATUS MENU displays Digital Inputs, Analog

Inputs, Digital Outputs and Analog Outputs.

Room Sensor Data and Expansion I/O will also be

shown on this screen if these options were pur-

chased with the IAQ system.

To return to the STATUS MENU, press the Esc key.

• Digital Inputs (Binary) - The Digital Inputs

Screen shows the state of the contacts wired

into port J5 of the controller. This screen is

provided for troubleshooting the control

system. Input Point ID1: Digital Occupied

Contact status - “On” if this contact is made,

and “Off” if this contact is open.

- Input Point ID2: Air Flow Switch status -

“On” if air flow is present, and “Off” if there

is no air flow.

- Input Point ID3: Motor Overload Contacts

status “On” if no overloads are present, and

“Off” if an overload exists.

- Input Point ID4: Damper End Switch status

“On” when the Damper is open, and “Off”

when the damper is closed.

- Input Point ID5: Low Voltage Monitor status

“On” if voltage is acceptable, and “Off” if a

low voltage exists.

- Input Point ID6: Condensate Level Switch

status “On” if the level is acceptable, and

“Off” if the level is high.

- Input Point ID7: Water Flow Switch status

“On” if the water flow is acceptable, and

“Off” when the water flow is low.

THE SMART SOLUTION FOR ENERGY EFFICIENCY

DOAS CM3500 Controller

Rev.:31 July, 2013

climatemaster.com

Figure 10: Digital Inputs

Figure 11: Analog Inputs

• Analog Inputs - These two screens are

provided for troubleshooting the control

system. The Analog Inputs Screen (Figure

11) shows the current readings of the Suction

Pressure, Discharge Pressure, Intake Air

Humidity, Intake Air Temperature and the

Supply Air Temperature.

• Digital Outputs (Binary) - This screen is

provided for troubleshooting the control

system. The Digital Output Screen will show

the state of the devices wired into ports J12

through J18 and ports J21 and J22 of the

controller.

To return to the I/O STATUS screen, press

the Esc key.

Figure 12: Analog Inputs (Continued)

- Input Point ID8: Smoke Alarm Contact status

“On”when no alarm exists, and “Off” if an

alarm occurs.

- Input Point ID9: Water Coil Thermostat

status -“On” if the water temperature is too

low, and “Off” when the water temperature

is acceptable.

- Input Point ID10: Filter Differential Switch

status “On” when filter pressure is too high,

and “Off” when the pressure is acceptable.

To return to the I/O STATUS screen, press

the Esc key.

Pressing the UP or DOWN keys will display

the second Analog Inputs Screen (Figure

12). If your unit comes standard with dual

refrigerant circuits, the Suction Pressure and

Discharge Pressure of circuit B are displayed

here. If your unit has a Heat Wheel with

Freeze Protection, the Exhaust Air Humidity

will be shown here. If your unit is set for CO2

control, the Heat Wheel Supply Differential

Pressure will be shown here. To return to the

I/O STATUS screen, press the Esc key.

Figure 13: Digital Outputs

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

DOAS CM3500 Controller

Rev.:31 July, 2013

ClimateMaster Water-Source Heat Pumps

• Analog Outputs - This screen is provided

for troubleshooting the control system. The

Analog Outputs Screen shows the following:

- Y1 – Hot Gas Command

- Y2 – Auxiliary Heating Command

- Y3 – VFD Command (shown if your IAQ

system comes standard with a heat wheel

VFD for freeze protection)

- Y4 – Exhaust Fan VFD Command (shown if

your IAQ system is set for CO2 control)

- Y5 – Recirculation Damper Actuator Command

- Y6 – Outside Air Damper Actuator Command

The Analog Outputs Screen will also

show the Supply Air Temperature or the

Zone Temperature and the Unit Status as

this data will relate to the Hot Gas and

Auxiliary Heat Commands. The Intake Air

Dewpoint is also shown on this screen as

this is a calculated output function.

To return to the I/O STATUS screen, press

the Esc key.

Figure 15: Room Sensor Data

Figure 16: Expansion I/O Data

• Room Sensor Data - This screen is provided

for troubleshooting the control system but

is only shown if the Zone Reset is selected

in the Factory Configuration of the unit. The

Remote Room Sensor Temperature and

Humidity Readings wired into the system are

shown on this screen by the device address.

The average of these sensors is shown as

well.

To return to the I/O STATUS screen press the

Esc key.

• Expansion I/O - This screen is provided for

troubleshooting the control system but is

only shown if the expansion I/O board has

been connected to the main controller and

is functioning. This screen shows the four

(4) Digital Inputs and the four (4) Digital

Outputs on the board. It also shows the

following:

- AI1 – CO2 concentration of Outdoor

Sensor

- AI2 – CO2 concentration of Indoor Sensor

- AI3 – Heat Wheel Exhaust Pressure

- AI4 – Reheat Condenser Differential Air

Pressure.

- AO1 – Supply Fan VFD Command.

To return to the I/O STATUS screen press the

Esc key.

Figure 14: Analog Outputs

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