OSTBERG HERU 14 S AC Installation And Directions For Use Download Page 35

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F L O W D I R E C T I O N

L E F T

R I G H T

Supply air

Extract air

Supply air

Fresh air

Exhaust air

Fresh air

T E C H N I C A L D A T A

Data stated at 100 Pa external pressure drop. See below for explanation of Sound pressure level.

HERU 14 S

HERU 19 S

HERU 35 S

HERU 52 S

Voltage

g, V/Hz 120/60

120/60

Current fans

, A (2 fans)

1,39

2,34

3,67

4,14

Current total

, A 11,5

12,4

17,9

18,4

Power fans

, W (2 fans)

162

277

436

494

Power total

, W 1389

1504

2163

2221

Current electric heater

, A

10,0

14,2

Power electric heater

, W

1200

1700

Speed

, rpm

2610

2680

2830

2470

Weight

, lbs

146

190

258

Duct connection

, inch

Ø 6

Ø 8

Ø 10

Summary of Contents for HERU 14 S AC

Page 1: ...UL VERSION Choose language and unit system in the Setting Menu on page 15 Installation and directions for use HERU S AC...

Page 2: ...through handling or normal wear are exposed to greater than average hazard e g lamps glass ceramic paper and plastic parts and filters and fuses are not covered by the warranty Settings information o...

Page 3: ...U 15 23 PRESSURE INPUTS FILTER MEASUREMENT AC FAN SETUP 16 DISPLAY CONTRAST BOOST OVERPRESSURE MAX TEMPERATURE 17 ALARM 18 CO2 RH HEATER 19 COOLER SUPPLY LIMITS REGULATION MODE MODBUS 20 SUMMER COOLIN...

Page 4: ...dity efficiency of up to 85 The HRV exchanger has a temperature efficiency of up to 85 has backward curved centrifugal fans with main tenance free external rotor motors which are con nected with quick...

Page 5: ...tside temperatures S E C U R I T Y Caution Do not apply electric power until after completion of the installation Ensure the installation and wiring is in accordance with CEC NEC and local electrical...

Page 6: ...e of the risk of injury we do not recommend installing the unit vertically C or with the lid downwards D Allowances must be made to access the unit for servicing or maintenance A B C D Inch A D B C H...

Page 7: ...s supplied for right handed application see picture below If the unit is installed left handed and no electrical heater is fitted changes can be made in the Service Menu and in the sub menu Flow Direc...

Page 8: ...8 C O N T R O L D I A G R A M H E R U S shows all sensors flow direction right Accessories...

Page 9: ...N C A PA C I T Y Airflow fan speed is regulated via the week timer that can be programmed for specific time points when the fan speed should change from one speed to antoher e g home or away setting A...

Page 10: ...equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction may cause harm ful interference to radio communications However there...

Page 11: ...m Relative air humidity in per cent Carbon dioxide level in PPM part per million SYMBOLS THAT CAN BE DISPLAYED IN VIEW MODE 3 Press key to choose Boost off on of the supply exhaust air flow for a spec...

Page 12: ...time has the factory setting of 30 min and fan speed Medium To adjust the fan speed and time see page 17 Boost is activated disable On Off with the key F A N S P E E D M E N U Only for HERU AC T E M...

Page 13: ...rd Medium Max Standby and temperature 15 30 C 59 86 F Overpressure is a special feature were you can pressure compensate when supplementary heating using an open fire or stove The exhaust air fan then...

Page 14: ...have the possibility of turning off the unit via the wireless control unit NB The unit must be currentless during service and maintenance Press in order to go forward from the Main Menu Press in order...

Page 15: ...em Press and then in order to choose Confirm with Choose from Metric and Imperial 15 W Week timer Power On Off U Unit system Imperial Unit system Imperial T H E S E R V I C E M E N U In this menu a pa...

Page 16: ...s ker B r endast ndras av installat r Minimum Min 20 EC motor setup EC motor setup Standard Standard Min Medium Medium Avbryt Ok Standard konst tr Till 90Pa 45 Fr n 110Pa 50 Till konst tr EC motor set...

Page 17: ...be activated at the View mode 1 and 2 and in the Main Menu Boost Press in order to go forward from the Main Menu Press again and then in order to choose the desired duration 10 240 min with the inter...

Page 18: ...crease the temperature can be change from 5 to 12 C 41 to 54 F but have to be higher than Alarm limit A If the unit operating at Min speed the extract air increases one step In menu Fire sensor type o...

Page 19: ...der to choose the Limit value 500 1400 PPM Press again and then in order to choose Interval 1 10 min At levels above the limit value the fan speed will increase one step according to the set Interval...

Page 20: ...on wireless control unit Version wireless control unit activates the Modbus port on the control board and the ability to communicate via RS485 For this you need complete Modbus index that you can down...

Page 21: ...Press again and then in order to choose InOutDiff 1 10 C 34 50 F Extract HI 19 26 C 66 79 F and Extract LO 18 24 C 64 75 F S E R V I C E M E N U S U M M E R C O O L I N G If Summer Cooling On is chose...

Page 22: ...M E N Y V E R S I O N I N F O Displays the software version of the unit Heru and the wireless control RC Press again to see the version S E R V I C E M E N U L O A D S A V E S E T T I N G S Load Save...

Page 23: ...has been used in an earlier assembly it will say Synchronize instead of Start Synchronization option Disconnect the power to the unit Press the reset button on the control board small square button ab...

Page 24: ...ips When changing filters once a year it is also appro priate to check if the fans are dirty Remove the the fans and rotor s protective plates when the fans have stopped and the heater has co oled The...

Page 25: ...en the ground cable 9 6 Pull out the rotor motor from the grippers and then dismount them 7 For HERU 35 52 S loosen electrical socket with bracket 12 with screwdriver TX20 and hang it over the egde to...

Page 26: ...00102 Outside wall hood 200 mm black 8200103 Outside wall hood 200 mm white 8200104 H E AT I N G C O I L 5 0 k W C O O L I N G C O I L 2 5 k W Air Flow 424 CFM 318 CFM Speed 2 2 m s 1 7 m s Temp in 77...

Page 27: ...gfilter F7 the same for supply and exhaust air HERU 52 S 1250153 Fan HERU 14 S AC 7710256 Fan HERU 19 S AC 7710255 Fan HERU 35 S AC 7710258 Fan HERU 52 S AC 7710253 Fan HERU S 7710249 Fan HERU S 77102...

Page 28: ...68...

Page 29: ...69...

Page 30: ...Filter If filters are dirty Change filter If the set time for filter measurement is reached Change filter Sensor open Which sensor is triggered see page 14 Connection to relay card If error remains ch...

Page 31: ...ulation mode Constant Supply reg Extract reg Room reg Default Const supply reg InOutDiff 1 10 C 34 50 F Default 5 C 41 F Extract HI 19 26 C 66 79 F Default 24 C 75 F Extract LO 18 24 C 64 75 F Default...

Page 32: ......

Page 33: ...33 DIMENSIONS 34 FLOW DIRECTION 35 TECHNICAL DATA 35 SOUND DATA 36 37 PRESSURE FLOW DIAGRAMS 38 39 WIRING DIAGRAMS 40 41 T E C H N I C A L I N F O R M AT I O N 34 41...

Page 34: ...16 4811 16 444 8 515 16 161 4 8 287 32 2613 16 5313 32 497 32 65 16 1913 32 13 13 32 7 23 32 10 217 8 205 8 423 8 381 4 5 145 8 10 1 16 5 9 16 6 18 5 8 22 5 8 27 H E R U 5 2 S A C H E R U 3 5 S A C H...

Page 35: ...n of Sound pressure level HERU 14 S HERU 19 S HERU 35 S HERU 52 S Voltageg V Hz 120 60 120 60 120 60 120 60 Current fans A 2 fans 1 39 2 34 3 67 4 14 Current total A 11 5 12 4 17 9 18 4 Power fans W 2...

Page 36: ...0 m2 vilket ger att LpA LwA 7 Q 4 4pr2 AEkv The sound data have been compiled by means of sound measurement methods as fol lows Pressure and flow SS ISO 5801 Determination of acoustic sound power leve...

Page 37: ...Surrounding 32 39 27 34 30 29 33 25 27 26 Supply 56 49 46 50 50 46 43 40 30 Extract 50 41 44 45 42 41 30 26 18 H E R U 5 2 S A C 120 V 328 CFM 1 20 H2O LpA LwATotal dB 63 Hz 125 Hz 250 Hz 500 Hz 1k H...

Page 38: ...ogether H E R U 1 4 S A C H E R U 1 9 S A C PRESSURE FLOW PRESSURE FLOW TOTAL FAN POWER FLOW 70 75 80 85 90 TEMPERATURE EFFICIENCY TOTAL FAN POWER FLOW TEMPERATURE EFFICIENCY 1 2 3 4 5 6 7 50 V 65 V 7...

Page 39: ...t air Indicated power applies to both fans together 1 2 3 4 5 6 7 50 V 65 V 75 V 85 V 95 V 105V 120 V PRESSURE FLOW TOTAL FAN POWER FLOW TEMPERATURE EFFICIENCY TRANSFORMER STEP TRANSFORMATORSTEG PRESS...

Page 40: ...W I R I N G D I A G R A M 4 0 4 0 1 5 5 HERU 14 S AC 19 S AC 40 Fan motor Fan motor Fan motor Yellow green Black Blue Brown White Orange Grey Green Violet Yellow...

Page 41: ...W I R I N G D I A G R A M 4 0 4 0 1 4 9 HERU 35 S AC 52 S AC 41 Fan motor Fan motor Fan motor Yellow green Black Blue Brown White Orange Grey Green Violet Yellow...

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Page 44: ...1270316 UL Utg 3 OSTBERG AMERICAS INC 55 Raglin Place Unit 3 Cambridge ON N1R 7J2 Ph 519 623 6363 Fax 519 623 8543 www ostberg com...

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