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gaSteam 45/90/180 pHC control User manual LEGGI E CONSERVA QUESTE ISTRUZIONI READ AND SAVE THESE INSTRUCTIONS...
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Warning! L’installazione del prodotto deve obbligatoriamente comprendere la connessione di messa a terra, usando l’apposito morsetto giallo-verde in morsettiera. Non utilizzare il neutro come connessione a terra. The product must be installed with the earthconnected, using the special yellow-green terminal on the terminal block.
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Warranty on materials: 2 years (from the date of production, excluding the consumable parts, such as the cylinder). Certifi cation: the quality and safety of CAREL products are guaranteed by CAREL’s ISO 9001 certifi ed design and production system, as well as the TÜV, CE and ETL marks.
4. STARTING, CONTROL AND SHUTTING DOWN 4.1 Starting the appliance ...........................12 4.2 Manually draining the boiler ......................14 4.3 The pGD0 graphic display (CAREL code: PGD0PH0F00) ............14 4.4 The main “menu” ..........................15 5. “MAIN “MENU” - AUXILIARY FUNCTIONS “SERVICE” (“MAINTENANCE”) SUBMENU 5.1 “SERVICE”...
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10. OTHER FUNCTIONS 10.1 Measuring the conductivity of the supply water .................34 10.2 Flue gas discharge temperature measurement ................34 10.3 Automatic draining ..........................34 10.4 Antifoam procedure ..........................34 10.5 Dehumidifi cation request signal .....................34 10.6 Automatically emptying the cylinder due to extended inactivity ..........34 10.7 Automatic reset from no water ......................34 10.8 Repeating the humidity request .......................35 10.9 Automatic procedure to unblock the fl...
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1. GENERAL CHARACTERISTICS OF THE MAIN CONTROL BOARD - PHC Terminal block This is a microprocessor electronic controller based on the pGE technology developed by CAREL for the management of all models of humidifi er. It is made up of two electronic boards, positioned one on top of the other and connected together by pin strip.
2. CONTROL SIGNALS FROM THE FIELD 2.1 Humidity or temperature control The humidifi er with humidity control action can be connected to a remote supervisor using optional cards. It can be controlled in the following four different ways (for further details, see chap. 9): a) Type C control: ON/OFF The humidifi...
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The diagrams shown in Fig. 2.g indicate the connection to be made using CAREL probes, with: • just one relative humidity probe (a);...
2.2 Pin strip position on the board for probe confi guration Main board A in the room probe confi guration Expansion board B on limit probe confi guration pHC controller the pHC controller 0 to 10 Vdc all but 0 to 10Vdc tachymetric 2 safety thermostat 2 Fig.
• terminals 7U-8U are jumpered or connected to an enabling contact; • the earth of any non-CAREL probes is connected to the earth on the controller; • if the appliance is controlled by an external controller, the earth of the signal is connected to the earth of the controller.
4. STARTING, CONTROL AND SHUTTING DOWN 4.3 The pGD0 graphic display (CAREL code: PGD0PH0F00) The pGD0 graphic display is an electronic device, compatible with the previous PCOI/PCOT terminals, used for the complete management of the graphics, by displaying icons (defi ned at an application software development level) and international fonts, in two dimensions: 5x7 and 11x15 pixels.
4.4 The main “menu” The main “menu“ offers the user or the installer the possibility to modify all the desired parameters. It is accessed by pressing the “PRG” button, Fig. 4.e.p. Use the UP and DOWN arrows to scroll the rows in the menu. The description of the individual items are listed in the following table.
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4.4.3 Timed set point control With this type of control, the humidity H (or temperature T) set point can be varied during the day. Up to 4 switching points can be set, with both the time and new set point. This setting is valid for every day of the week.
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4.4.5 Shutting down When shutting down the appliance at the end of the season or alternatively for maintenance on the electrical parts and/or water circuit, the humidifi er should be placed out of service. NOTE: empty the cylinder before shutting down the humidifi er to prevent fouling. Fig.
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ENABLE OPERATION - START/STOP STEAM PRODUCTION Once the unit is on, the “enable” function effectively starts the humidifi er. Humidif.enabled: Burners Sequence: Subsequently, steam production is related solely to the humidity request or the presence of an alarm or Parallel a remote OFF signal.
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“UP” or “DOWN” arrows, Fig. 4.z.q and then pressing the “ENTER” button to save the change. CAREL S.p.A. NOTE: The default language is English. Code :FLSTDmGST0 Vers.:1.0b10 06/09/04...
5. READING AND SETTING THE PARAMETERS The confi guration and control parameters are grouped into two sets: 1. LEVEL 1 - set point and control parameters 2. LEVEL 2 - confi guration parameters Each parameter has the following attributes: name text identifying the parameter range limit values for the setting of the parameter...
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display unit of measure accessibility description steam: kg/h or lb/hr total steam fl ow-rate Amb. Hum: in H control mode humidity measured in the room Set P. ambient humidity set point Amb. T: °C (°F) in T control mode room temperature Set T.: °C (°F) room temperature set point...
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5.2.3 Setting the “operating sequence of the two burners” (UG180 only) The gaSteam 180 manages the operation of the two burners so that in stable operation these produce 180 kg/h of steam. Ideally, the gaSteam 180 can be considered as two separate humidifi ers, each with its own burner, and able to produce up to 90 kg/h.
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To offer a wider range of modulation in parallel mode, the concept of “ROTATION” has been introduced (see OPTIONS - Rotation of the request between the burners). If ROTATION is active, in PARALLEL mode too one burner is started fi rst, while the other remains off production burner 1;...
6. CONFIGURATION PARAMETERS 6.1 Reading and setting the confi guration parameters - “USER” submenu The confi guration parameters are used to set the operating modes of the controller, that is, assign the essential functions of the humidifi er. These parameters are normally managed by the installer or the service personnel, and therefore a password is required to access the screens that contain these parameters.
6.6 Confi guring the limit humidity probe This is used to set the minimum value, maximum value and the offset for the limit probe. screen name parameter name range default Confi g. Limit Probe (accessible only in H control mode with Type 0 to 1 V 0 to 1 V...
6.9 Water supply with REVERSE OSMOSIS system The gaSteam is a humidifi er suitable for operation on demineralised water, which reduces the phenome- na of saline deposits and fouling inside the boiler and on the walls of the exchangers. In this regard, the water pipe can be connected to a reverse osmosis system for demineralising the water. The rated water fl...
Once preheating is activated, the heating is modulated by the systems (burners + fans) depending on the water temperature measured by the NTC probe and the “preheating set point” (see Fig. 7.h). The preheating set point temperature is a parameter with a range 70T-90°C and a default equal to 80°C. Hyst= 2,5 °C Reference % for the burner hyst...
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6.14 Options Drain due to inactivity The drain due to inactivity is used to completely empty the water from the humidifi er if the cylinder does not produce steam for a period set by parameter, which by default is 3 days. By default, the drain due to inactivity is enabled.
The parameters in question are listed in the following table: parameter name range default ID number for BMS Network 0 to 200 Comm. speed 1200, 2400, 4800, 9600, 19200 19200 Protocol CAREL, Modbus, LON, RS232, GSM CAREL Table 6.m gaSteam pHC CONTROL +030220534 - rel. 1.2 - 15.05.2006...
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7. “MAIN “MENU” - AUXILIARY FUNCTIONS “SERVICE” (“MAINTENANCE”) SUBMENU By entering the “service” submenu, the installer or service personnel can access information and perform any required operations. 7.1 “SERVICE” - information on the fi rmware The fi rst screen in this submenu indicates the code and the version of the application installed. System info In addition, the language can be changed (see par.
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7.4 Procedure for testing the electrical parts Password access only. This procedure allows the installer or the service personnel to check the correct operation of all the electrical parts, i.e.: • the activation of the fans/burners; • the opening of the water fi ll valve; •...
In these conditions, pressing the Alarm button once displays the type of alarm (and the code, in line with the standard for CAREL humidifi ers). In the event of potentially dangerous alarms, the controller automatically stops the production of steam.
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meaning causes solution reset alarm codes displayed alarm action (2)= alarm relating to cylinder 2 relay Foam alarm excessive foam in the cylinder the formation of foam is generally due to the automatic Pre-alarm: EA Foam Present not active signal only during the boiling phase presence of surfactants in the water (lubricants, solvents, detergents, water treatment or softening...
9. OPERATING PRINCIPLE, CONTROL AND OTHER FUNCTIONS 9.1 Operating principle In a gas humidifi er, the production of steam is obtained inside a boiler containing water that is heated to and then held at boiling temperature. The heat required to boil the water is provided by one or two burners that burn a mixture of air/gas. The heat power of the fl...
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9.2.4 Autonomous control with relative humidity transducer and outlet humidity com- pensation transducer In this case too the controller modulates steam production as a function of the % rH measurement performed by the relative humidity transducer, however, in addition, the output is limited if the relative humidity % rH2 measured by a second compensation transducer placed in the air duct downstream from the humidifi...
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10. OTHER FUNCTIONS 10.1 Measuring the conductivity of the supply water The controller measures the conductivity of the supply water. The measurement is made using the conductivity meter by opening the fi ll solenoid valve. The fi eld of reading ranges from 0 to 1500 µS/cm. Two thresholds are available: xx: pre-alarm threshold (signal only, without activating the alarm relay, and automatic reset when the condition is no longer present);...
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10 days (default value), the controller will activate an alarm that shuts the unit down, signalling the constant malfunction of the level sensor. CAREL reserves the right to modify the features of its products without prior notice. gaSteam pHC CONTROL +030220534 - rel. 1.2 - 15.05.2006...
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