Related Manuals for Fast RHE Series
Summary of Contents for Fast RHE Series
- Page 1 HEAT RECOVERY UNITS WITH COOLING CIRCUIT Series ISO 9001:2000 - Cert.n° 0882/4 SELECTION, USE, INSTALLATION AND MAINTENANCE MANUAL FAST S.p.A.
- Page 3 Index General norms Unit description Components decription Accessories Technical data Operating limits Sound data Cooling performance variation Fresh air temperature variations on the change of the external air temperature Heating efficiencies, pressure drops on air side, accessories MBCH, MSS Cooling scheme summer operation Cooling scheme winter operation Dimensions Accessories dimensions...
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Page 4: General Norms
After Sales Service. Carefully observe all indications to the side of the pictogram that • FAST S.p.A. decline any responsibility limit some actions in order to ensure grea- for any damage due to the improper ter safety for the operator. -
Page 5: Description Of The Unit
The RHE series is not a conditioning a rated airflow from 1000 to 3300 which makes installation on suspended unit, and it cannot be set apart from a... -
Page 6: Description Of The Components
High effi ciency heat recovery unit with cooling circuit - RHE - Description of the components Panels and frame: The frame is made up of 25 mm thick galvanised self-supporting sandwich panels RHE 10-15 with injected polyurethane insulation ( density of 42 kg/m ) and nylon reinforced corners with glass fi... - Page 7 High effi ciency heat recovery unit with cooling circuit - RHE - Accessories MBCH Hot water coil module filtrating cell is 48 mm thick. cooling kit ” includes 2 dampers with This is an external module that can be related ON/OFF 230V servomotors. MSS Module with silencers installed downstream from the motor For further information refer to the Use...
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Page 8: Technical Data
High effi ciency heat recovery unit with cooling circuit - RHE - Technical data RHE MODEL External maximal air flow 1000 1500 2500 3300 Recovery maximal air flow 1000 1500 3300 2500 Minimum air flow 1000 2000 2500 [Pa] Supply static available pressure [Pa] Exhaust static available pressure [kW]... - Page 9 High effi ciency heat recovery unit with cooling circuit - RHE - ACCESSORIES MBCH - Water heating coil Rows Front surfaces 0,238 0,238 0,238 0,314 Air side pressure drop at nominal flow rate [Pa] Heating capacity [kW] 7,68 10,35 15,56 19,7 Heating capacity [kW]...
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Page 10: Operating Limits
(°C) environment. Refer to fig. 03 for the t est (°C) operating limits. N.B: Please contact FAST technical sales office in the event it is necessary to operate the machine outside the limits indicated in the diagram. t int (°C) t int (°C) - Page 11 High effi ciency heat recovery unit with cooling circuit - RHE - Cooling Performance variations Heating performance Cooling performance The RHE series heat recovery unit with refrigerating circuit allow the renewal of the internal air giving the necessary hourly change in order to obtain the ideal comfort conditions.
- Page 12 High effi ciency heat recovery unit with cooling circuit - RHE - Fresh air temperature variations on the change of the external air temperature The following charts allow to determine Summer operation the variation of the temperature within the room on the variation of the external conditions.
- Page 13 High effi ciency heat recovery unit with cooling circuit - RHE - Heating efficiencies and accessories pressure drops BCH, MSS The diagram in fig. 06 allows to determine fig.06 for each model, according to the water temperature and otside air temperature variation the corrective factor to multiply for the nominal capacity value are present in the technical data table.
- Page 14 High effi ciency heat recovery unit with cooling circuit - RHE - Refrigerating circuit summer operation EXHAUST FAN FRESH AIR FAN Compressor Condensing coil Evaporating coil Filter Liquid receiver High pressure probe Inversion valve High pressure switch Low pressure switch Selection, installation, use and maintenance manual...
- Page 15 High effi ciency heat recovery unit with cooling circuit - RHE - Refrigerating circuit winter operation FRESH AIR FAN EXHAUST FAN Compressor Condensing coil Evaporating coil Filter Liquid receiver High pressure probe Inversion valve High pressure switch Low pressure switch Selection, installation, use and maintenance manual...
- Page 16 High effi ciency heat recovery unit with cooling circuit - RHE - Dimensions RHE 10-15 ILTER ACCESSIBILITY 1” J ONDENSATE DISCHARGE 1” J ILTER ACCESSIBILITY ONDENSATE DISCHARGE OOM AIR UPPLY FAN UTSIDE AIR UTSIDE AIR XHAUST FAN SUCTION SUCTION SUCTION PASS FOR FREE COOLING OOLING CIRCUIT...
- Page 17 High effi ciency heat recovery unit with cooling circuit - RHE - RHE 25 1” J ONDENSATE DISCHARGE ILTER ACCESSIBILITY ILTER ACCESSIBILITY 1” J ONDENSATE DISCHARGE OOM AIR SUCTION UTSIDE AIR PASS FOR FREE COOLING SUCTION XHAUST FAN OOLING CIRCUIT UPPLY FAN ACCESSIBILITY LECTRICAL...
- Page 18 High effi ciency heat recovery unit with cooling circuit - RHE - RHE 33 1” J ONDENSATE DISCHARGE ILTER ACCESSIBILITY ILTER ACCESSIBILITY 1” J ONDENSATE DISCHARGE OOM AIR UTSIDE AIR PASS FOR FREE COOLING SUCTION SUCTION electrical panel Inspect Refrigerant circuit inspec Weights and c.g.
- Page 19 High effi ciency heat recovery unit with cooling circuit - RHE - Accessories Dimensions MSS - Silencers Modules Mod. [mm] RHE 10-15-25 RHE 33 MSS 1 MSS 2 846,5 880,5 12,5 12,5 432,5 BIT - Base for floor installation Mod. [mm] RHE 10-15 RHE 25 RHE 33...
- Page 20 High effi ciency heat recovery unit with cooling circuit - RHE - MBCH - Module with water coil MBCX - Module with electric coil Mod. [mm] RHE 10-15-25 RHE 33 Mod. [mm] RHE 10-15-25 RHE 33 MBCH 1 MBCH 2 MBCX 1-2-3 MBCX 2 772,5...
- Page 21 High effi ciency heat recovery unit with cooling circuit - RHE - MSS, MBCH, MBCX assembly -for MBCH only: electrical cables for connection between Accessories MBCH, MBCX and MSS are equipped with: three way valve servocontrol (230V, ON/OFF running) and - “L”...
- Page 22 High effi ciency heat recovery unit with cooling circuit - RHE - Dampers and actuators (accessory FCH) A + 40 2 dampers with actuators ON/OFF 230V are included in the accessory free-cooling kit FCH. Mod. [mm] RHE 10 RHE 15-25 RHE 33 Circular flanges (FGE accessory) 380 mm...
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Page 23: General Safety Requirements
Th e n e c e s s a r y c o n t r o l s a r e t h e WARNING! following: The RHE series units are destined for •integrity of the finned coil manifolds CAUTION! civil and tertiary use: for all other and condensate trays;... -
Page 24: Minimum Clearances
High effi ciency heat recovery unit with cooling circuit - RHE - fig.08 for the components (three-way valves, Minimum clearances condensate drainage traps, etc.) without which the correct functioning of the unit can not be guaranteed; In particular: • a space of at least 200 mm must be available for the trap in correspondence with the condensate drain (fig. - Page 25 • prevent the infiltration of odours or insects. In the lower part of the syphon must have H1 = 2P a bleed cap or must anyway permit fast pos. neg. H2= H1 / 2 dismantling for its cleaning.
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Page 26: Operation
High effi ciency heat recovery unit with cooling circuit - RHE - FCH free-cooling accessory Accessory assembly Operation For the assembly of the free-cooling The free-cooling function foresees that The assembly of the "free-cooling accessory please refer to fig. 12: the air expelled from the room does not kit"... -
Page 27: Electrical Connections
Access to the inverter and changing ted by FAST, while 4, 5 and 6 can be the settings should always be carried changed in relation to the desired flow out in the absence of supply voltage by rates. - Page 28 High effi ciency heat recovery unit with cooling circuit - RHE - MODEL RHE 10 DIP-SWITCHES Flow 800 Flow 900 Flow 1000 (factory setting) MODEL RHE 15 DIP-SWITCHES Flow 1100 Flow 1200 Flow 1300 Flow 1400 Flow 1500 (factory setting) Selection, installation, use and maintenance manual...
- Page 29 High effi ciency heat recovery unit with cooling circuit - RHE - MODEL RHE 25 DIP-SWITCHES Flow 2050 Flow 2300 Flow 2550 (factory setting) MODEL RHE 33 DIP-SWITCHES Flow 2550 Flow 2800 Flow 3050 Flow 3300 (factory setting) Selection, installation, use and maintenance manual...
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Page 30: Unit Start-Up
• replace all parts in reverse order. • remove the filters; The RHE series recovery units have • clean the filters; If the unit is placed on the ground: • replace all parts in reverse order. • remove all above panels;... -
Page 31: Heat Recovery Unit
High effi ciency heat recovery unit with cooling circuit - RHE - Fans-motor assembly • disassemble the cross bar; • check the motor fan assemblies and • disconnect the pan from the replace them if necessary; The fans motor assembly needs to be condensate drain pipes;... - Page 32 High effi ciency heat recovery unit with cooling circuit - RHE - Diagnosis and fault solving 1. Insufficient air flow rate • Fans rotation speed • Clean the components too low increase the fan speed • Pressure drop of the distribution system underestimated •...
- Page 33 High effi ciency heat recovery unit with cooling circuit - RHE - 10. The compressor does not start due • Pressure switch out of order • Check and replace to the intervention of the • Machine completely empty • See point 11) low pressure switch •...
- Page 34 NOTE...
- Page 36 Technical data shown in this booklet are not binding. FAST S.p.A. shall have the right to introduce at any time whatever modifications deemed necessary to the improvement of the product. FAST S.p.A. TRATTAMENTO DELL'ARIA 35044 Montagnana (PD) - Italy Via Luppia Alberi, 170 Tel.