Refrigerant R407C CW-AR. 2.4 to 3.1kW. Water Source Heat Pumps - Vertical Mounting Version Models 07 to to 2.7kW

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1 Refrigerant R407C CW-AR Water Source Heat Pumps - Vertical Mounting Version Models 07 to to 3.1kW 1.9 to 2.7kW

3 Some advantages... RAL 9010 painted cabinet 3-fan speeds G2 filter is supplied as standard. Front or bottom access to the filter. Temperature range : 13 to 45 C EC version is available as optional Front panel is very easy to remove in order to facilitate access to internal components. Direct external access Schrader valves (HP&LP) available for a pressure tap on the refrigerant circuit. STORM 2 electronic board and RCL remote control are delivered as standard 1 RCL x 10 units 2

4 Unit Description Generalities RAL 9010 painted cabinet with optimal compactness. High efficiency units with high COP values. Complete access to the compressor, fan and electrical box, through front removable panel. Condensate drain pan with anti-corrosion treatment by oven-baked epoxy paint.. Fan motor equipped with 3 ventilation speed, or optional EC version. Heat exchanger with brazed stainless steel plates on the water/ refrigerant side, for improved efficiency. Stand-alone control by a STORM 2 electronic board which can be configured using the RCL user remote control, which comprises a digtal display and essential control keys. Optional TAC branded XENTIA type LON control associated to TH STR 106. Introduction The new generation of CW-AR water source heat pumps is the fruit of our considerable product experience and our awareness of the market, all combined with a technology based on the energy efficiency of machines, in order to provide on the market units with the highest performance in terms of COP. Operating range To enable a much wider operating range and installation using a water source in an application with a dry cooler, the standard CW-AR units are designed to operate in a water source temperature range between 13 and 45 C. Cabinet The cabinet is made of galvanised sheet steel painted RAL To facilitate access to the main components, front removable panel provides access to the compressor, the fan and the electrical box. The condensate drain pan has anti-corrosion treatment consisting of ovenbaked epoxy paint. The inside of the cabinet, on the fan compartment side, is coated with 15 mm thick closed cell polyurethane foam thermal-acoustic insulation, classified M1. On the compressor compartment side, the thermal-acoustic insulation is of 20 mm thick Isofeutre type with heavy mass. Versions The CW-AR range is available in several versions : CW-AR CAR : standard version with cabinet, CW-AR CARB : low height version with cabinet, CW-AR NU : standard version without cabinet, CW-AR NUB : low height version without cabinet. Each version can be supplied, as standard, with feet or with front air intake RF (optional). Filtration All units are equipped as standard with a disposable G2 filter. Access to the filter can be realized by the front or the bottom (according to the version CW-AR RF or CW-AR with feet). Water connections The water source outlet and return connectors are located on the outside of the unit in several configurable positions. They are of female gas threaded type (1/2"). The condensate drain connection is of smooth tube type with an outside diameter of 16 mm. Water feeding sides : BACK / RIGHT / LEFT / MIDDLE. A flow switch of SIKA type will be factory supplied as standard in order to avoid any compressor damage. Electrical box Holes are provided in the casing for entry of electrical power supply and remote control cables. The electrical power supply for CW-AR units is 230V/1Ph/50Hz. Compressor is standard equipped with an internal thermal protection with an automatic reset function. Refrigerant circuit The refrigerant circuit comprises a rotary type hermetic compressor, a cycle reversal valve, a water/refrigerant heat exchanger, a liquid receiver, and a finned coil. The refrigerant circuit also comprises an HP pressure switch with automatic reset function (range bar) and an LP pressure switch with an automatic reset function (range bar). Two direct external access Schrader valves (HP & LP) are available for pressure tapping on the refrigerant circuit. The water/refrigerant heat exchanger is of the brazed stainless steel plate type, for increased efficiency. The anti-freeze safety of the heat exchanger is provided by a water pipe sensor located on the water outlet of the unit monitored by the electronic board. Maximum service pressure water side (27.5 bar) and refrigerant side (30 bar). The heat exchangers are particularly well adapted to the operation of reversible heat pumps with high thermal transfer rates for a low water flow rate. The air/refrigerant coil is made of aluminium fins which are mechanically crimped onto copper tubes. The geometry of the coil and of the fin profile have been carefully designed to provide maximum efficiency in the operation of the units. The cycle reversal valve is designed to be normally energised in heating mode. This logic enables the heat pump to continue to operate in cooling mode if this valve fails. The liquid receiver enables the charge of HFC 407C refrigerant to be optimised, in order to maintain a high COP value. Ventilation section The fan compartment contains the fan-motor assembly, the air/refrigerant coil and the condensate drain pan. The ventilation section is completely isolated from compressor compartment by a thermally and acoustically insulated partition wall. Wide removable panels provide access to the various internal components. The condensate drain pan has an anti-corrosion treatment. All the units are equipped with a 3 speed direct-drive fan motor with ipsothermal protection against overheating during operation. The motor ipsothermal protection fault is displayed in the form of a coded signal on the LED of the RCL remote control. The 3 fan speeds can be controlled either manually or automatically by the electronic management board of the unit. EC optional motor available on request. 3

5 Versions CW-AR CAR with feet CW-AR CAR with front air intake RF CW-AR CARB with feet CW-AR CARB with front air intake RF CW-AR NU with feet CW-AR NU with front air intake RF CW-AR NUB with feet CW-AR NUB with front air intake RF 4

Control Features STORM 2 electronic board All CW-AR water source heat pumps are, in their standard version, equipped with a STORM 2 electronic board which manages their operation and their safety

6 Control Features STORM 2 electronic board All CW-AR water source heat pumps are, in their standard version, equipped with a STORM 2 electronic board which manages their operation and their safety devices. RCL user remote control STORM 2 electronic board Master/slaves control : the standard version of the STORM 2 electronic board enables operation in master/slaves regulation mode for up to 10 water source heat pumps using a single RCL user remote control. RCL user remote control An RCL user remote control is supplied as standard in the electrical control box of the units. It enables individually controlled operation as stand-alone regulation. The RCL remote control is ergonomically designed and discreet. It comprises a digital display and essential functions such as : On/Off, Selection of operating mode, Room temperature display, Fan speed selection, Temperature set-point adjustment. A keypad locking function is also available. The RCL user remote control comprises a Display LED which shows the operating status of the water source heat pump (Lit : On - Unlit : Off), and it also enables an operational fault to be identified by flashing a specific code. This configuration enables the installer to save on the purchase and wiring of equipment such as auxiliary relays and multi-wire cables between the various water source heat pumps. Only a bus cable with 2 twisted pairs is necessary between the master and slave units. When a request for operation in cooling mode is received, the fan-motor assembly is started up immediately and the compressor does not start until after an effective time delay of 180 seconds. The RCL remote control enables operation in cooling-only mode or in automatic cooling/heating mode with, at a given temperature set-point used as a switch-over point, a neutral switch-over range of +/-3 C from cooling to heating mode. In cooling mode, the fan runs permanently and the 3 speed ventilation can be implemented in automatic or manual mode : HS, MS, or LS. When a request for operation in heating mode is received, the fan-motor startup is controlled by the electronic board and the temperature of the ICT sensor; the reversal valve is activated before the compressor and the latter does not start until after an effective time delay of 180 seconds. The RCL remote control enables operation in heating-only mode or in automatic heating/ cooling mode with, at a given temperature set-point used as a switch-over point, a neutral switch-over range of +/-3 C from heating to cooling mode. In heating mode, the fan can operate either cyclically (the fan stops when the set temperature is reached) or permanently and the 3 speed ventilation can be implemented in automatic or manual mode: HS, MS, or LS. Measurement of the room air temperature : the STORM 2 card electronic regulation enables the selection of a room temperature measurement mode which uses an ambient temperature sensor (RCT) in the RCL remote control, or a return temperature sensor (RAT) located directly on the water source heat pump. Anti-short cycle : after each compressor shut-down, a time delay of 180 seconds is introduced by the electronic board. This time delay constitutes an anti-short cycle device and therefore helps to protect the compressor. 5

Control Features (continued) Variable sequential start-up function : when the system is first energised, or after a power cut, or after opening the "CLK" contact, a random time delay of 0 to 30

7 Control Features (continued) Variable sequential start-up function : when the system is first energised, or after a power cut, or after opening the "CLK" contact, a random time delay of 0 to 30 seconds is introduced by the electronic board to prevent the water source heat pumps from all starting up simultaneously, thus avoiding a power surge. Emergency shut-down / stand-by / night setback : the electronic board has two "CLK" terminals which shut the unit down immediately. By incorporating a zone thermostat in series, the "CLK" contact can also be used as a night setback and the water source heat pump will start up again as soon as the ambient temperature drops below the set point of the setback thermostat. Anti-freeze safety function : this is provided by two temperature sensors. In cooling mode an "ICT" temperature sensor located in the finned coil protects the water source heat pump against accidental freezing. In heating mode, the safety function is provided by an "LWT" minimum water outlet temperature sensor. The anti-freeze fault read by the temperature sensor is displayed by a coded signal on the LED of the RCL remote control. High temperature safety function : the "ICT & LWT" temperature sensors check that the condensation temperature at the finned coil and the water temperature at the outlet of the water/refrigerant heat exchanger do not exceed the authorised limits. The manual reset HP pressure switch completes the high temperature safety function. The high temperature safety fault read by the ICT and LWT sensors and the HP pressure switch cut-off is displayed by a coded signal on the LED of the RCL remote control. Fault reports : the electronic regulation carried out by the STORM 2 board uses coded signals to remotely report four different possible machine faults on the display LED of the RCL remote control : µbms mini-supervision station This centralised control unit is proposed as an option, and can be connected to the STORM 2 electronic board as a supervision station to monitor and manage 32 water source heat pumps in 15 zones from a single point, in addition to the local RCL remote controls. The µbms mini-supervision station enables the zones to be programmed with global control for all zones, or with individual control of each zone with programming of the operating time ranges over a 7 day period, with management of the heating, cooling and night setback modes. It also provides the possibility of having different set-points in different zones. µbms mini-supervision station - HP pressure switch triggering, - Water temperature fault in low limit, - Water temperature fault in high limit, - Anti-freeze protection. The STORM 2 electronic board also enables the general machine fault to be sent to a remote fault relay via a dry contact. Motorized valve : The STORM 2 electronic board has a 230 volt output for an (optional) motorized valve controlled by the operation of the compressor, in order to enable the flow-rate of the hydraulic pump(s) to be regulated according to the manometric pressure in the water source. 6

8 Operating Limits Environment This equipment is designed for an internal installation only. In general, the sheltered locations, such as garages, attic, etc, do not provide sufficient protection against extreme temperatures and/or humidity, and the performance, the reliability and the life span of the equipment can be decreased. Temperature limits Cooling Heating Minimum 21 C dry bulb / 15 C wet bulb 15 C Return air temperature Nominal * 27 C dry bulb / 19 C wet bulb 20 C Maximum 32 C dry bulb / 23 C wet bulb 27 C Entering water temperature Minimum 23 C 12 C Nominal * 30 C 20 C Maximum 42 C 34 C ** Temperature and water flow limits are independant of fan speed. * Nominal conditions according to EN ** 32 C for model CW-AR 07 at LS (low speed). Flow limits CW-AR 07 Water flow (l/h) Entering water temperature ( C) Water flow (l/h) Low Speed Entering water temperature ( C) Medium Speed and High Speed 7

9 Operating Limits (continued) Flow limits Water flow (l/h) CW-AR Entering water temperature ( C) Water flow (l/h) Water flow (l/h) Entering water temperature ( C) CW-AR Entering water temperature ( C) Water flow (l/h) Entering water temperature ( C) 8

10 Physical Data Models CWAR 07 CWAR 09 CWAR 12 CAPACITIES Total cooling capacities (1) W Sensible cooling capacities (1) W Heating capacities (2) W VENTILATION Air flow (Low Speed) m 3 /h Air flow (Medium Speed) m 3 /h Air flow (High Speed) m 3 /h Motor power W Fan speeds Nbr Air filter - Number / Efficiency 1 / G2 Air filter (front) - Dimensions / Thickness mm 660 x 205 mm / 6 mm Air filter (bottom) - Dimensions / Thickness mm 595 x 187 mm / 6 mm HYDRAULIC CIRCUIT Water heat exchanger Nbr 1 Maximum water pressure bar 3 Nominal water flow (1) l/s Cutoff water flow versus nominal water flow % WPD at nominal water flow kpa 5 3,4 12 Hydraulic connections - Inlet / Outlet Inches ISO G 1/2'' INT Condensate outlet Ø mm 15 x 20 REFRIGERANT CIRCUIT Number of circuit 1 Compressor Type Rotary WEIGHT WITHOUT CABINET / WITH CABINET Operating weight kg 55 / / /75 SOUND DATA Sound power Lw (Low Speed) db(a) Sound power Lw (Medium Speed) db(a) Sound power Lw (High Speed) db(a) ELECTRICAL DATA Power input - Cooling mode (3) W Power input - Heating mode (3) W Electrical power supply 230V/1Ph/50Hz ±10% Fan max. current A Compressor nominal current (4) A Compressor starting current (5) A (1) Nominal cooling capacities based on : entering air temperature of 27 C dry bulb, 19 C wet bulb with entering water temperature of 30 C. (2) Nominal heating capacities based on : entering air temperature of 20 C dry bulb, 15 C wet bulb with entering water temperature of 20 C. (3) Absorbed power (compressor + fan) at nominal conditions. (4) Nominal currents are given at +/- 5%. (5) Starting currents are given at +/- 10%. Dimensions (in mm) - All Sizes Versions With cabinet CAR With cabinet CARB Without cabinet NU Without cabinet NUB Length Width Height with feet Height with front air intake

11 Cooling Performance Data - CW-AR 07 Nominal airflow 340 m 3 /h - Medium Speed Entering Water Temp. ( C) Water flow (l/s) Water Pressure Drop (kpa) Cooling mode TEA ( C) TSE ( C) Pt (W) Ps (W) Pabs (W) CR (W) EER 24/ / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / TEA TSE Pt : Entering air temperature (dry bulb/wet bulb). : Leaving water temperature. : Total cooling capacity. Ps : Sensible cooling capacity. Pabs : Compressor power input. CR : Total heat rejection. 10

12 Heating Performance Data - CW-AR 07 Nominal airflow 340 m 3 /h - Medium Speed Entering Water Temp. ( C) Water flow (l/s) Water Pressure Drop (kpa) Heating mode TEA ( C) Pc (W) Pabs (W) CA (W) COP TEA Pc : Entering air temperature. : Heating capacity. Pabs CA : Compressor power input. : Total heat absorption. 11

13 Cooling Performance Data - CW-AR 09 Nominal airflow 400 m 3 /h - Medium Speed Entering Water Temp. ( C) Water flow (l/s) Water Pressure Drop (kpa) Cooling mode TEA ( C) TSE ( C) Pt (W) Ps (W) Pabs (W) CR (W) EER 24/ / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / TEA TSE Pt : Entering air temperature (dry bulb/wet bulb). : Leaving water temperature. : Total cooling capacity. Ps : Sensible cooling capacity. Pabs : Compressor power input. CR : Total heat rejection. 12

14 Heating Performance Data - CW-AR 09 Nominal airflow 400 m 3 /h - Medium Speed Entering Water Temp. ( C) Water flow (l/s) Water Pressure Drop (kpa) Heating mode TEA ( C) Pc (W) Pabs (W) CA (W) COP TEA Pc : Entering air temperature. : Heating capacity. Pabs CA : Compressor power input. : Total heat absorption. 13

15 Cooling Performance Data - CW-AR 12 Nominal airflow 460 m 3 /h - Medium Speed Entering Water Temp. ( C) Water flow (l/s) Water Pressure Drop (kpa) Cooling mode TEA ( C) TSE ( C) Pt (W) Ps (W) Pabs (W) CR (W) EER 24/ / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / TEA TSE Pt : Entering air temperature (dry bulb/wet bulb). : Leaving water temperature. : Total cooling capacity. Ps : Sensible cooling capacity. Pabs : Compressor power input. CR : Total heat rejection. 14

16 Heating Performance Data - CW-AR 12 Nominal airflow 460 m 3 /h - Medium Speed Entering Water Temp. ( C) Water flow (l/s) Water Pressure Drop (kpa) Heating mode TEA ( C) Pc (W) Pabs (W) CA (W) COP TEA Pc : Entering air temperature. : Heating capacity. Pabs CA : Compressor power input. : Total heat absorption. 15

17 Dimensions - CW-AR CAR with Feet

18 Dimensions - CW-AR CAR with Front Air Intake mini 750 maxi 17

19 Dimensions - CW-AR CARB Low Height with Feet

20 Dimensions - CW-AR CARB Low Height with Front Air Intake mini 610 maxi 19

21 Dimensions - CW-AR NU with Feet

22 Dimensions - CW-AR NU with Front Air Intake mini 555 maxi

23 Dimensions - CW-AR NUB Low Height with Feet

24 Dimensions - CW-AR NUB Low Height with Front Air Intake mini 555 maxi

26 Systemair Airwell SAS route de Verneuil, Tillières-sur- Avre Tél Fax Systemair EDM CWAR-S-1GB/09.14 As part of our ongoing product improvement programme, our products are subject to change without prior notice. Non contractual photos. september 2014

SYSEFTYS - SYSHRW THE. Water Source Heat Pumps Range N E W. Water cooled. Refrigerant R407C. from 2.1 to 30.0 kw. from 2.7 to 38.1 kw. models.

SYSEFTYS - SYSHRW THE. Water Source Heat Pumps Range N E W. Water cooled. Refrigerant R407C. from 2.1 to 30.0 kw. from 2.7 to 38.1 kw. models. Air Conditionné Chillers & Heat Centrales Pumps de Water traitement terminals d air Ventilateurs Rooftops Close Sécurité control incendie Water Grilles source et heat Diffusion pumps Composants Direct