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Summary of Contents for Carel MC
- Page 1 Installation Operation & Maintenance Room Atomizing Manual Humidification System (Modulating Operation) Read and Save these Instructions ROdfskd...
- Page 2 MC room modulating...
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Page 3: Table Of Contents
Parts of Control Cabinet Control Sections ................30 Wiring Diagrams .......................... 32 About Support Systems: The MC system requires clean compressed air and water to operate efficiently and with minimal maintenance. Compressed Air Requirements: 0.15 CFM per pound of water per hour is required. DO NOT UNDERSIZE AIR COMPRESSORS. - Page 4 Carel USA technician. Any product or part that is found to be defective will, at the option of Carel USA, LLC be replaced or repaired. Carel USA, LLC reserves the right to inspect any part or installation before replacing or repairing defective parts.
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Page 5: Installation Instructions
Installation Instructions Step 1 Installation Rules The following general rules need to be applied to any MC installation. Carel will not take responsibility for any system installed that does not follow these rules and warranty may be voided. 1. All atomizing heads on a system must be at the same elevation. Due to the low water pressure involved, a deviation in elevation of heads of more than 3 inches may be enough to cause the lower heads to spray heavy while the higher heads don’t spray at all. -
Page 6: Step 2 Assemble Atomizing Head Assemblies
MC room modulating Step 2 Assemble atomizing head assemblies Assemblies are shipped preassembled except for connection of the plastic water lines. The supporting air and water lines, and tees are supplied by the installer. All threaded fittings on the head assemblies for air and water are 1/4” MPT. -
Page 7: Step 3 Plan System Layout (Assistance Is Available From Carel Usa)
Step 3 Plan system layout (assistance is available from Carel USA) First, determine where the atomizing heads can be best located to maintain necessary clearances per the following diagrams. The atomizing heads may be located along a wall with all heads... - Page 8 MC room modulating or double head assemblies discharging in the same direction (or with every other head opposite). The entire system layout then should resemble the following: 1/2" AIR LINES (200 lbs/hr OR LESS) 3/4" AIR LINES (OVER 200 lbs/hr)
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Page 9: Step 4
Installation, Operation, Maintenance Manual Step 4 Mount the cabinet The control cabinet should be mounted to a solid surface at a convenient height. However, the cabinet should not be located above the atomizing heads. Optimum installation is with the control cabinet at least 3 feet or more below the atomizing heads. -
Page 10: Step 5 Connect Air And Water
MC room modulating Step 5 Connect air and water The air and water ball valves shown at right are supplied loose with the cabinet. Solder a piece of 1/2” copper tube (no longer then 2’) to the 1/2” ball valve (supplied). -
Page 11: Step 7 Mount And Wire Sensors & Safeties
Compressor/water treatment enable is a SPST relay. Water treatment and compressor failure alarms need to come from a dry contact. 24 VAC provided by the MC cabinet (#16). WATER TREATMENT FAILURE Carel NTC sensors do not have polarity. 24 Vac... -
Page 12: Step 8 Installation Checklist
MC room modulating Step 8 Installation Checklist The following checklist should be reviewed BEFORE contacting your CAREL representative for system start-up: _____ 1. Proper electric power is connected to the control cabinet. Controls light when power is turned on by the on/off switch. -
Page 13: Step 9 Startup Procedures
Turn off Manual Control and return to automatic control. Air regulator Modulating air valve Drain solenoid Water regulator Water feed solenoid Set in final setpoints. See “Operating the MC controls following. STARTUP IS COMPLETE - REFER TO OPERATING INSTRUCTIONS. -
Page 14: Operating The Mc Controls
MC room modulating Operating the MC controls The MC system uses the very latest Carel controls technology known as the pCO2 programmable controller. There is a backlit, 4 line by 20 character display and 6 user interface buttons. Keyboard COMMANDS... -
Page 15: System Status
Installation, Operation, Maintenance Manual NOTE: The standard MC display will have fields that can display values or accept values. Values that are read only are preceded by a colon (:), ex: “Room: 040.4 %RH” indicates that the 040.4 is a display only value and cannot be changed. Values that can be changed (such as set points) are preceded by an arrow (>), ex: “Room>... -
Page 16: User Settings
MC room modulating User Settings (Initial password is 0001) 1 USER SETTINGS ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ │ROOM HUMIDITY SETUP │ │SUPPLY HUMID. SETUP │ │ STAGING SETUP │ │ Setpoint> 050.0 % │ │ │ │ OFF │ │ Band> 10.0 % │... -
Page 17: Current Alarms
Installation, Operation, Maintenance Manual Current Alarms 1 CURRENT ALARMS ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ │ *** ALARM *** │ │ *** ALARM *** │ │ *** ALARM *** │ │ │ │ │ │ │ │ ROOM HUMIDITY │ │ SUPPLY AIR HUMIDITY│ │... - Page 18 MC room modulating ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ │ *** ALARM *** │ │ *** ALARM *** │ │ *** ALARM *** │ │ │ │ │ │ │ │ HIGH CUSTOMER │ │ LOW CUSTOMER │ │ MAINTENANCE │ │ SENSOR READING │...
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Page 19: Run Hours
Installation, Operation, Maintenance Manual Run Hours 1 RUN HOURS ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ │ SYSTEM RUN HOURS │ │ SYSTEM RUN HOURS │ │ SYSTEM RUN HOURS │ │ Stage 1> 00000 hr│ │ Stage 2> 00000 hr│ │ Stage 3> 00000 hr│ │... -
Page 20: Service Settings
MC room modulating Service Settings (Initial password is 0001) 1 SERVICE SETTINGS ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ │ SENSOR FAIL ALARMS │ │ SENSOR FAIL ALARMS │ │ SENSOR FAIL ALARMS │ │ ENABLE DELAY│ │ ENABLE DELAY│ │ ENABLE DELAY│ │... - Page 21 Installation, Operation, Maintenance Manual ┌────────────────────┐ ┌────────────────────┐ │ STAGING DELAYS │ │ CLEAN-OUT CYCLE │ │ │ │ Enabled> YES │ │Comp/Water On>00 min│ │ Time ON> 30 min│ │Comp Off Del>010 sec│ │ Time OFF> 30 sec│ └────────────────────┘ └────────────────────┘ Allows the user to configure the time This sets the clean-out cycle for the before Stage 1 (Comp/Water On) and atomizing heads.
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Page 22: Factory Settings
MC room modulating Factory Settings (Initial password is 9999) 1 FACTORY SETTINGS ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ │ SENSOR SELECTION │ │ SENSOR SELECTION │ │SYSTEM CONFIGURATION│ │ │ │ DDC Input> NO │ │ │ │ Room Humidity> YES│ │ Outside Temp> NO │... -
Page 23: Factory Defaults (Caution)
“splash screen”: │ SYSTEM TYPE │ ┌────────────────────┐ │ │ │> Duct Master │ │ CAREL │ │ MC Atomizing │ │Number stages> ONE │ │ Humidifier │ └────────────────────┘ │Ver: 1.02 01/13/04│ Choices are: └────────────────────┘ Room Master which can be reached either by powering off the control Room Master + Mod. -
Page 24: Date/Time Setting
MC room modulating Date/Time Setting 1 DATE/TIME ┌────────────────────┐ │DATE / TIME SETTINGS│ │ │ │> 10/08/2003 > 11:51│ │> FRIDAY DST>YES│ └────────────────────┘ User can change date and time in this screen by changing field values. DST enables or disables daylight saving time. -
Page 25: Communications
TOTAL you would like to speak. Incoming-call variables. The NUMBERS is the amount of phone The options are Carel LOCAL, Carel password, number of rings, and type numbers present in the ADDRESS REMOTE, MODBUS-slave, and of phone line are selectable here. -
Page 26: Maintenance Instructions
MC room modulating Maintenance Instructions Although the MC system requires very little maintenance itself, some components such as the air compressor may require more. You should always follow the component manufacturer’s recommended maintenance schedules. The following maintenance is recommended: ... -
Page 27: Trouble Shooting Instructions
Installation, Operation, Maintenance Manual Trouble Shooting Instructions Hopefully, you will never have a problem with your MC system, but if you should, please refer to this section BEFORE calling your local CAREL representative. Air bleeds from regulator. • Dirt has become lodged on the seat in the regulator. Unscrew the cap on the bottom of the regulator and remove the seat. - Page 28 MC room modulating All heads spray too heavy or too light. • Check the condition of the air stream. If you are doing startup of the unit, and forcing the system to operate at 100% with little to no actual demand, then the observation of too much mist may be inaccurate.
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Page 29: Parts Of Atomizing Heads
MCN05 O-ring (A)(B) Air Side Part Number Description MCHH***000 Complete MC dispersion head assembly (***= 006; 009; 012; 015) O ring and seal rebuild kit for 1 ea. dispersion head (Kit parts noted as (A) MCKSEA1000 1 per head MCNP1... -
Page 30: Parts Of Control Cabinet Control Sections
MC room modulating Parts of Control Cabinet Control Sections Modulating Air Control Section Water Control Section... - Page 31 Complete 1/2" water control section - for all types of water MCRSWITCH SP/ST On/Off Rocker Switch MCKPCO5P00 Kit MC Control PCO5+ programmed PCO2CON0S0 PCO controller plug in wiring connectors NOTE: Where identified - for parts with Ser.# <2300 - contact Carel USA...
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Page 32: Wiring Diagrams
MC room modulating Wiring Diagrams Modulating Room (for reference only - refer to wiring diagram in control cabinet) RX- / TX- RX+ / TX+ +VDC IDC1 ALARM ALARM COMPRESSOR / WATER TREATMENT ENABLE VGO - SOLENOID - TO TERMINAL 5 STAGE 4 (SLAVE CABINET) - Page 33 Installation, Operation, Maintenance Manual...
- Page 34 MC room modulating 385 S. Oak Street Manheim, PA 17545 Phone: (800) 344-4649 Fax: (717) 664-0449 Email: sales_usa@carel.com Website:www.carelusa.com...
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