HUMIDIFIER EQQA, EQQZ

Transcription

1 HUMIDIFIER EQQA, EQQZ INSTALLATION AND MAINTENANCE INSTRUCTION EQQA Once-through water 2- EQQA for circulated water EQQZ-1 Humidifier cassette Ordering code. 16 EQQA Once-trough water EQQA for circulated water EQQZ-1 Humidifier cassette FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice

2 2 Installation and maintenance instruction HUMIDIFIER, ONCE-THROUGH WATER CONNECTION CONNECTION The water supply is regulated by a pulse valve and constant flow valve, pos. 12. Connect the supply pipe, pos. 1, to the inlet pipe (tab. 1). The supply must have a shut-off valve, pos. 2, and water filter, pos Value 9 %, b = 1 6 %, b = 2 Connection number/diameter Inlet Outlet , , 68 No. 1 1/2 diam 2 72, 79 72, 79 No. 2 / diam 2x2, 6, 6 No. 2 / diam 2x2 9 9 No. 2 / diam 2x2 aaa 8-,6, 6, 68 aaa,6,72, 6, 72, 79,9 9 Table 1. Connection dimensions The drain pipe must be fitted with a cleanable water trap, pos., (EQAZ-8) and should be run, without reduction in diameter, to a floor gulley. 1. Water supply pipe 2. Shut-off valve (not included). Water trap EQAZ-8 (accessory). Drain pipe. Humidifier fill 6. Droplet eliminator 7. Spray pipe 8. End plug 9. side wall 1. Water filter, with a max mesh of μm (not included) 11. Flushing hose 12. Pulse valve and constant flow valve Water trap EQAZ-8 Shut-off valve, water trap and water filter are not supplied with EQQA. Important! Use a pipe wrench to stop pipe couplings rotating when connecting external piping. Size Connection data pulse valves Number of valves Date Connection data 1-2 V Current, A Frequency -6 Hz Protection class I I P6 Output 8 watts Function Normally Closed FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice

3 Installation and maintenance instruction HUMIDIFIER, ONCE-THROUGH WATER PRE-COMMISSIONING ADJUSTMENTS Check: A. that the droplet eliminator fills are correctly fitted for direction of the air flow, see arrow. B. that there are no water leaks at any of the couplings and connections. C. that water is being discharged from all holes in the spray pipe or pipes. If any holes are clogged, use a needle to unclog them. If the spray pipe(s) is/are extremely clogged, remove the end plugs (8), brush inside using a round brush and then flush them clean. D. that the pulsing function operates correctly: open for ca 1 seconds and closed for ca 1 seconds. EQQA 6 % - humidifier water l/min Table 2. Water consumption, l/min 9 % - humidifier water l/min 9 1, 2, , , 27 2, 2 6, 6 2, 1 6, 6 7 6, 6, 6, , SPECIAL CASES In the event of power loss, e.g. during a holiday or long weekend break, drain and clean the tray. If the humidifier is likely to be out of operation for an extended period, remove the humidifier fills from the humidifier, clean them and put them somewhere safe. MAINTENANCE Water supply pipe 2. Shut-off valve (not included). Water trap EQAZ-8 (accessory). Drain pipe. Humidifier fill 6. Droplet eliminator 7. Spray pipe 8. End plug 9. side wall 1. Water filter, with a max mesh of μm (not included) 11. Flushing hose 12. Pulse valve and constant flow valve 9 aaa 8-,,6, 6, 68 aaa,6,72, 6, 72, 79,9 9 Check: A. that the humidifier fills and droplet eliminator are correctly fitted for the direction of air flow, see arrows. B. that there are no water leaks at any of the couplings and connections. C. that water is being discharged from all holes in the spray pipe or pipes. If any holes are clogged, use a needle to unclog them. If the spray pipe(s) is/are extremely clogged, remove the end plugs (8), brush inside using a round brush and then flush them clean. Water flow when the pulse valve is open is: 6 mm wide fill 9 %, 8 l/minute. 6 mm wide fill 6 %, l/minute. Water consumption according to table 2. If the flow deviates from this the constant flow valve may be blocked, see instructions for cleaning constant flow valve, pos FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice

4 Installation and maintenance instruction HUMIDIFIER, ONCE-THROUGH WATER CLEANING THE HUMIDIFIER FILLS AND DROPLET ELIMINATOR A. Turn off the water supply. B. Open the inspection door. C. Slide the droplet eliminator and humidifier fills straight out of the humidifier. Important! The innermost fills can be reached by stepping carefully onto the edge of the tray. Avoid stepping on the guides or base of the tray. D. The humidifier fills are relatively fragile and should therefore be handled very carefully. Clean by spraying with clean water. E. Check that the holes in the spray pipe are not blocked. If necessary remove the end plugs from the pipe and clean it internally. F. Refit parts in the reverse order. G. Check the position of the side wall and close the door. If it is necessary to replace the humidifier block, separate instructions will be supplied with the new block. CLEANING THE CONSTANT FLOW VALVE A. Remove the valve. B. Check that there is no contamination on the rubber membrane. Clean carefully if needed. C. Refit the valve with the arrow pointing in the direction of the water flow, and check the water flow. Size Humidification rate 9 % Humidification rate 6 % Size Humidification rate 9 % Humidification rate 6 % , , , , Table. Water flow through the constant flow valve and the pulse valve. Min. water pressure in supply pipe 1 kpa. Constant flow valve, located inside End plug Spray pipe Constant flow valve Water connection, ext. thread 1/2 Outlet connection Ø 2, out Droplet eliminator Humidifier fills FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice

5 Installation and maintenance instruction HUMIDIFIER, ONCE-THROUGH WATER SERVICE INTERVALS Component Action Interval, months Casing (water tray, ends, top, guide rais) Drain the water tray. Clean the interior by flushing, wiping or if necessary brushing. Humidifier fills Droplet eliminator Cleaning. Water filter Clean or replace the filter cartridge, if necessary. (The mesh must not exceed μm). Constant flow valve Check that there is no contamination on the rubber membrane. Clean carefully if needed. Water flow Clean the spray pipes, if necessary. Water trap Clean and refill. 6 Water quality Water ph should not be lower than or higher than 8.. Drinking water is suitable. 12 FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice

6 6 Installation and maintenance instruction CONNECT ON TO WATER SYSTEM The water supply is regulated by a built-in solenoid valve. Connect the supply pipe to inlet branch. Fit a shut-off valve, pos. 2, in the water supply pipe Size Connection number/diameter Supply connection/ (male threads) Drain connection 9-68 No. 1, R 1/2 No. 2, R 1 1/ female threads 72-9 No. 2, R / Two Ø 2 Table 1. Connection sizes Controller box, external 2. Shut-off valve (not included). Water filter, with a max mesh of μm (not included). Water trap EQAZ-8 (accessory). Drain pipe 6. Humidifier fill 7. Droplet eliminator 8. Spray pipes 9. Pump 1. Flow controller 1 1. Valve with motor actuator 12. Overflow hose 1. Level sensor 1. Solenoid valve 1. Flushing hose 16. End plug 1 7. Spacer plate To avoid clogging, a water filter, pos. (with a max mesh of μm), should be fitted between the shut-off valve and the humidifier. Connect the drain pipe, pos., to the humidifier s drain connection. This must be fitted with a cleanable water trap, pos., and must run without any reduction in diameter to a floor gulley. In the case of model 72-9 two water traps coupled in parallel should be used. The shut-off valve, water trap and water filter are not supplied. Water trap EQAZ-8 CONNECT ON TO THE ELECTRICAL SYSTEM (Must be carried out by an authorized electrician.) When wiring is carried out on the installation site the supply cable must be run via an external high voltage switch to the control box through the cable gland fitted in the casing. The controller has an internal 2 A fuse. The pump(s) supplied is/are always wired for x V. The pump motors meet protection class S (IP) and insulation class B. Number of pumps EQQA Size/Humidification grade Output:,7 kw Voltage: x 2/ V Current: 1,72/1, A %-9 % %-9 % 1 Table 2. FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice

7 Installation and maintenance instruction 7 ITEMS TO CHECK WHEN MAKING ADJUSTMENTS Water: Determine the proportion of calcium and bicarbonate in the water, and its ph level. This information can be obtained from a water analysis or from the local water company. Enter the values obtained in chart 1 on page to determine which zone the water can be classified. If the water quality is in zone a water softener must be used. Testing operation of humidifier: Turn on the external switch. Give the start signal to the humidifier by closing input TF1 (if this signal is interrupted the humidifier will stop and the water will drain out). The tray should only start to fill with water when there is a need for humidification, i.e. when the RH1 input closes. Now check: that the humidifier starts to fill with water. that the pump starts and pumps water (input RH1 must be closed). If there is no water flow, change the direction of rotation, see figure. Preset the required supply water flow rate according to Table. This is done by setting the adjustment screw on the flow controller, see figure. that water sprays out of all the holes in the spray pipe(s). Use a needle to clear any clogged holes. If the pipe is clogged with dirt, remove the end plugs, pos. 16, fig. 1, clean the spray pipe with a round brush, then flush it clean. that the supply flow stops when the water reaches level A. that the water bleed-off rate is correct. Open the outlet valve, figure 2, by holding in the left arrow key on RC1. When the water level has fallen below level B the valve should open fully and the display should show Emptying. When the water drops below level C the water inlet should open, and after the preset time the drain valve should start to close. When the water reaches level C the pump should stop briefly. The tray will then refill with water. Closed Open Droplet eliminator The droplet eliminator must be installed in the correct direction of the air flow, see the arrow on the droplet separator. Fig. Fig. Level sensor Size 9 1, , 27, 6 2,, 6 2 1,, 68 7,, 6, 79 72, Table gives the amount of water that the circulation pump must be set to. It is not the water consumption. 2 1 Fig. 2 Adjustment screw Reading point Water flow, l/min Aluminium 9 % 6 % Fig. 2 FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice

8 8 Installation and maintenance instruction WATER BLEED-OFF Water consumption consists of the useful evaporation and essential water bleed-off flow. This bleed-off flow is necessary to reduce the concentration of salts in the circulating water. If the salt concentration becomes too high, salts are precipitated out in the humidifier fills, which will reduce the performance and working life of the humidifier. Chart 1 can be used to determine the appropriate bleed-off flow, by determining zone for the current water quality. Then set the appropriate bleed-off flow to ensure that the water in the tray is kept clean it is recommended that it is drained and flushed once every 2 hours (timing is preset at factory for ). If high demands are made on hygiene or if humidification requirements are high for an extended period, i.e. Δ x > 8 gram per kg of air (9 % humidifier) or Δ x > gram (6 % humidifier), it is recommended that an extra drainage and flushing cycle is added in each 2-hour period. It may be necessary to extend the dilution time, see table. The value (T) is set using the display. CIRCULATION FLOW Dry air Humid air Size Normal operation, preset value b = 1 9 % Time for dilution, seconds b = 2 8 % High humidification over a long period Δ x >8 gram 9 % Δ x >8 gram 8 % Table. Presetting the dilution period WATER CONSUMPTION FOR HUMIDIFIER WITH CIRCULATING WATER AHU Airflow m /s,8 1 1, 1,7 2 2, 7 9 Water content of entering air g/kg Water content of leaving air g/kg Tankvolume, level A l,8,, 6,, 7,2 6, 8,1 8,6 18, 169, 169, Tankvolume, level B l 1, 2,1 22,6 22,6 7, 9,9 7,8 82,8 9, 86,9 Tankvolume, level C l 1, 16,9 1,2 2,2 1,2 2,2 2,2 26,9 26,6 6 2, 2, Dilution time, T sek Operation time/day (average over the year) tim,6,6,6,6,6,6,6,6,6,6,6,6 Draining per day Water cost /m Calculated water consumption: Water consumption due to evaporation l/h 17, 21,6 2, 6,7,2, 6,8 86, 86, 18, 11,2 19, Water consumption due to draining to level C l/h,6 7, 1, 11,9 1, 17,6 21, 27,9 8, 6,6 8,6 81,2 Water consumption due to dilution calc on T l/h,, 7,1 12,1 9, 1, 1,7 21,, 1,2 6,6 7,8 Water consumption due to rinsing l/h 8,6 1, 12,6 16,8 12,6 2,9 16,8 22, 2,8 1,2 7, 7, Total water consumption l/h 1, 6,9 62,6 77, 79,2 16,8 11,2 18,1 192,9 21,, 9, Total water consumption m /år 1, 61,6 82,2 11,8 1,1 1, 18,7 27,7 2, 29,8 1,2 16,9 Water cost/year /år Factor total consump/evaporation 1,82 2,17 1,9 2,11 1,8 1,98 1,7 1,8 2,2 2,2 2,27 2,2 Table. The water consumption per years is dependant on climate, operation hours, water quality and the quantity of moisture required. this table gives an estimate for a typical case FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice

9 Installation and maintenance instruction 9 TO DETERMINE THE WATER QUALITY ZONE The following information is needed to determine the water quality zone: ph value Bicarbonate concentration (HCO ), mg/l Calcium concentration (Ca 2+ ), mg/l Information on the water can be obtained from the local water works or by water analysis. EXAMPLE Data from the local water works: ph = 7,6 Bicarbonate 7 mg/l Calcium mg/l Chart 1 indicates zone 1 (the safe zone) CHART 1 D B Calcium Ca 2+ mg/l ph value Max. ph aluminium Precipitation zone Transition zone Safe zone , 9 9, 1 6 C A Bicarbonate HCO mg/l Zone 1 is the safe zone, where the water is soft or demineralised. Zone 2 is the lower part of the transition zone, where the water is normally of drinking water quality. Zone is the upper part of the transition zone, where the water is relatively hard. Zone is the precipitation zone, where the water is very hard. The water must be partially demineralised so that the result will be a quality that corresponds to zone 2. The water should not however be demineralised so much that it falls into zone 1. Apart from the risk of lime precipitation, the concentrations of chloride (Cl) and copper (Cu) must be checked. The concentration in fresh water must not exceed mg/l for chloride and.2 mg/l for copper. HOW TO USE THE CHART Enter the chart on the right hand side with the bicarbonate (A) rate and the Ph (B) and find the intersection (C). run a line over the chart with the calcium rate (D) and find the intersection in the applicable zone. FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice

10 1 Installation and maintenance instruction TO SHUT DOWN THE HUMIDIFIER A. Turn off the supply voltage. B. Stop the fans, if they are operating. CLEANING OR REPLACING THE HUMIDIFIER FILLS AND DROPLET ELIMINATOR A. Shut down the humidifier. B. Open the inspection door. C. Remove the spacer plate as shown in fig. 6A. D. Slide the droplet eliminators and humidifier fills straight out of the humidifier. See fig. 6A-B. Important! The inner humidifier fills can be reached by stepping carefully onto the edge of the water tray. Avoid stepping on the guide rails or bottom of the tray, or electric cables. E. The humidifier fills are relatively fragile and should therefore be handled very carefully. Clean by spraying with clean water, if necessary using a cleaning agent such as ULCZ-1. If it is necessary to replace the humidifier block, see the separate instructions that are supplied with the new block. F. Refit parts in the reverse order. G. Check the position of the spacer plate and close the door. TO CLEAN THE WATER TRAY A. Shut down the humidifier. B. Remove the humidifier fills and droplet eliminators. C. Open the drain valve manually to drain the water tray. Important! Do not step on the bottom of the water tray, guide rails or electric cables. D. The water tray is now exposed and can easily be cleaned using the supplied flushing hose. E. Refit parts in the reverse order. F. Check the position of the spacer plate and close the door. INTERRUPTED OPERATION The control unit of the humidifier switches over to the emptying mode as soon as the fan is shut down. If the humidifier is not being used, e.g. during a holiday or long weekend, the water tray must be cleaned. If the humidifier is likely to be out of operation for an extended period, remove the humidifier fills from the humidifier, clean them and store them somewhere safe. Fig. 6 B Fig. 6 A Droplet eliminator Humidifier fills SERVICE INTERVALS Component Action Interval, months Casing (water tray, ends, top, guide rais). Drain the water tray. Clean the interior by flushing, wiping or if necessary brushing. Humidifier fills. Droplet eliminator. Cleaning. Water filter Clean or replace the filter cartridge, if necessary. (The mesh must not exceed μm). Level sensor Check the water sensor and adjust as necessary. Water flow Clean the spray pipes, if necessary. Water trap Clean and refill. 6 Water quality See measures when making adjustments. 12 FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice

11 Installation and maintenance instruction 11 CONTROL EQUIPMENT The control box is located on the exterior of the functional section. Internal components, such as the ultrasound sensor, solenoid valve, actuator and circulation pumps 1 and 2 are wired to the junction box. ULTRASOUND SENSOR The ultrasound sensor has an analogue output of 1 V, which means that the water level can be read from the display to an accuracy of a few millimetres. MONITOR AND KEYPADS MONITOR The four-line display has 12 characters per line. ESC + OK THE KEYPADS The right arrow is used for navigation between the 8 images on the screen that show running information and other settings. See below. If the left arrow is held depressed, this will force the drain pipe to open (used for performance testing.) INFORMATION IMAGES 1. In-operation information in Swedish. 2. In-operation information in English.. In-operation information in German.. For setting water quality zone and time delay, T, for dilution.. For setting cleaning time for humidifier fills and tray. (1 2 x 1 min./day) 6. For reading the factory preset values for each water level A, B1, B2, B and C, sensor scaling factor F and pump function CP. 7. For setting time. 8. For setting inactive time. IMAGE 1. IN-OPERATION INFORMATION IN SWEDISH D R I F T P Å F Y L L N I N G A L A R M C P 1 - Q 1 V A T T E N mm Line 1 shows: NOT RUNNING, RUNNING, HUMIDIFYING Line 2 shows: DRAINING, DILUTION, FILLING, CLEANING Line shows: ALARM CP1-Q1, ALARM CP2-Q2, ALARM LEVEL Line shows: WATER mm IMAGE 2. IN-OPERATION INFORMATION IN ENGLISH - - R U N N I N G F I L L I N G U P A L A R M C P 1 - Q 1 WA T E R mm IMAGE. IN-OPERATION INFORMATION IN GERMAN B E T R I E B - A N N A C H F Ü L L U N G A L A R M C P 1 - Q 1 WA S S E R mm + ESC All the arrow keys are used to move the flashing cursor between the different fields on the screen. The plus and minus keys are used to: - increase or decrease a flashing value - choose between On and Off. The Esc key is used to: - advancing one step upward in the menu tree - remove the flashing cursor - reset an alarm or alarm output. IMAGE. CHOOSING ZONE AND TIME DELAY Z O N / Z O N E : 2 ( 1 - ) V E R Z Ö G E R U N G D E L A Y T = 2 Do as follows to change zone. Press arrow down until the figure 2 flashes. Use the + or keys to set the desired value, 1, 2 or. Press OK. Selecting a lower value than 1 will still give zone 1. Selecting a higher value than will still give zone. OK The OK key is used to: - confirm a selection. FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice

12 12 Installation and maintenance instruction Z O N / Z O N E : 2 ( 1 - ) V E R Z Ö G E R U N G D E L A Y T = 2 Do as follows to change the time delay. Press arrow down twice until the value flashes. Change to the desired value using the + or keys. Press OK. IMAGE. SETTING THE CLEANING TIME 1 m i n C L E A N. R E I N I G U N G 1 2 : : 1 : - : The humidifier should be drained and flushed for 1 minutes once or twice a day. The preset time is 12: - 12:1 (this can naturally be changed if required). One additional time can be entered. This is set by default to : - :. If, for example, you want to set the time to 18: -18: this is fine, but remember to set the start time as ON and the end time as OFF on the display. If the start time and end time are both OFF this function is disabled. If the start time and end time are both OFF this function is disabled. Example: Setting end time to 18: Off. Press the arrow down key four times until the field : flashes. Press OK. The timer program for the end time will now be shown. Press arrow down twice to get to the last line, which reads : OFF. The first field will be flashing. Enter 18 (h). Select the next field. Enter (min). Select the next field. Set this to OFF. The last line should now read: 18: OFF. Caution! Do not change lines 1. Press OK to return to Image. 1 m i n C L E A N. R E I N I G U N G 1 2 : : : : Caution! The period selected must cover a period of 1 minutes. Use the arrow keys to move the flashing field and change the active value using the + and keys. Example: Setting start time to 18: On. Press the arrow key three times until the field : flashes. Press OK. The timer program for the start time will now be shown. Press arrow down twice to get to the last line, which reads : OFF. The first field will be flashing. Enter 18 (h). Select the next field. Enter (min). Select the next field. Set this to On. The last line should now read: 18: On. Caution! Do not change lines 1. Press OK to return to Image. FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice

13 Installation and maintenance instruction 1 IMAGE 6. PRESET LEVELS AND PARAMETERS CHOSEN TO SUIT HUMIDIFIER SIZE (CAN BE CHANGED WITH PASSWORD) Example S = 1 2 B = A = 7 B 2 = C = 2 B 1 = 2 8 F = C P = 2 S = Installation height of ultrasound sensor above the bottom of the water tray. A = Max. water level for filling. C = Min. water level (Pump stopped). F = Adjusting/scaling sensor output. B = Level for zone B2 = Level for zone 2 B 1 = Level for zone 1 CP = 1- Function assigned to pump(s) when inputs for hygrostats RH1 and RH2 are closed. 1 pump, 1 step CP = 1, RH1 starts CP1, RH2 is disconnected. Alarm from CP2 is interlocked. 2 pumps in parallel CP = 2, RH1 starts both CP1 and CP2, (default setting). Can be used even if just CP1 is fitted. 2 pumps, in sequence (special) CP =, RH1 starts CP1, RH2 starts both CP1 and CP2. 2 pumps, mode (special) CP =, RH1 starts CP1, RH2 starts CP2, RH1+RH2 starts both CP1 and CP2. Caution! The pumps are interlocked if the water level is low, if the humidifier is not running and if there is an alarm from the relevant overload protection. IMAGE 7. SETTING THE CLOCK The clock must always be reset if power to the humidifier has been cut off for around 1 hours or more. TID TIME ZEIT 8: The clock switches automatically between summer/winter time according to EU standard. To change the time, do as follows: Press arrow down so that the clock time flashes. Press OK. The date and time will now be displayed. Use the arrow keys to move the flashing field and change the relevant value using the + and keys. When the date and time are set, press the OK key. OK ClockSet YYYY/MM/DD 26 / / 7 Ex. TID TIME ZEIT 8 : (8) () 8: IMAGE 8. TO SET THE INACTIVITY TIME SETTING The water in the humidifier will be emptied if the humidifier has been inactive for a period longer than the preset inactivity time (no need for humidification). When the RH1 input closes, the pump starts up (if the water level is not too low). When the RH1 input opens, the pump stops and a time counter begins counting the time that the humidifier is inactive Not in operation and the tray is emptied of water. When the RH1 closes again, the time counter is reset to zero, the tray is filled with water and the pump starts up. OK INAKTIVITET INACTIVITY INAKTIVITÄT T> 2 min OK To change the inactivity time setting, proceed as follows. Press the arrow-down button to cause the value to flash in the display. Press the + or button to change the setting to the value of your choice. Then press OK. FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice

14 1 Installation and maintenance instruction TO ZERO CALIBRATE THE ULTRASOUND SENSOR The sensor is zeroed by FläktGroup with an empty water tray. If it is necessary to change the zero calibration to suit future needs this can be done by adjusting position of the sensor by means of the lock nuts. The sensor must reach working temperature before calibration, i.e. the humidifier must be allowed to run for at least 1 minutes after switching on. The display may give a reading that is out by a few millimetres during the warming-up period T1 K1 ESC OK RC1 K2 ALARMS There is a potential-free group alarm output inside the junction box. The alarms that appear on the monitor screen are: F1 Q1 Q2 Alarm level The water level is continuing to rise above the maximum level A. The most likely reason is that the solenoid valve MV1 is not closing. The alarm stops after five minutes. The water level does not reach the maximum level A during filling. The most likely reason is that the solenoid valve MV1 is not opening, the water tap is turned off or the drain valve SV1 is not closing. The alarm stops after minutes. The sensor has detected unreasonable values, outside its detection rage, is not correctly aimed at the water surface or has stopped working. This fault is also shown by the sensor LEDs both glowing red. The alarm stops after five minutes. Alarm CP1-Q1 or CP2-Q2 Has been initiated because the overload protection for circulation pump CP1 or CP2 has tripped. 1-9 PE N F1, Fuse 2 A T1, 2 VAC/2 DVDC Transformer RC1, Controller (PLC) K1-K2, Contactor Q1-Q2, Overload protection Fig. 7 Components inside of the control box Resetting alarm Press the Esc key to reset an alarm. FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice

15 - Installation and maintenance instruction 1 WIRING DIAGRAM Hz xvac+n+pe External high-voltage switch PE L1 L2 L N F1 2A PE Ledarna skall ändmärkas Valve actuator Brown Blue(grey) Brown 2 1 SV1 Circulation pump(s) N Brown 1.72/1.A 1.72/1.A PE CP1 CP2 1 2 Alarm Normally-closed -1V SV 1 SV 1 L1 Q 1 MV 1 Q 2 6 PE Alarm Normally-open CP 1 CP 2 M M -phase -phase RC1 PE Controller (PLC) L N MV1 TF 1 RH 1 RH 2 N Blue Brown Brown Blue (Grey) Brown Blue (Grey) + - A B Solenoid valve Overload protection Overload protection Q1 Q Start signal from TF1 Green Red Green Hygrostat RH1 Yellow Dark blue Grey (Hygrostat RH2) Violet Orange Orange Alarm output Max 2VAC 8A Orange 2VAC / 2VDC Contactor Contactor 2 6 A1 2 6 A1 Transformer GU1 T1 Grey K1 K2 Dark blue L PE N White 1 A2 1 A2 TERMINAL 1 Grey 1 Shielded 1 White 12 Blue 11 Brown Level sensor Light blue Light blue Light blue Light blue FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice

16 16 Installation and maintenance instruction HUMIDIFIER, FOR CIRCULATED AND ONCE-THROUGH WATER EQQZ-1 HUMIDIFIER CASSETTE ORDERING CODE Humidifier EQQA-aaa-bb-c-d-e-f Included in EQQZ-1 Humidifier block Screen strip Size (aaa) 8-9 Humidity level (bb) 1 = 9% 2 = 6% Version (c) 1= circulating water 2 = once-through water Control connection (d) = without, 1 = with Distributor block Inspection side (e) 1 = right, 2 = left Version number (f) 2= version 2 (new humidify fill) Tape The figure shows the cassette upside down. The humidifier block and distributor block in EQQZ- 1 are installed in the relevant humidifier cassette as shown in the figure above. When the cassettes are installed in the humidifier the bevelled corner must face downwards and against the direction of the air flow. NOTE! Make sure that the tape on the inside of the cassettes is intact. FläktGroup DC_862GB 21811_R Specifications are subject to alteration without notice