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SPR • SPR • Swimming pool dehumidifier

For swimming pools
HiDew

Datasheet

SPR units with heat recovery are designed to be used in small, medium and large sized swimming pools where the adjustment of the humidity level and/or prevention of condensation phenomena are required, even in 24h running and where a constant air exchange is necessary. SPR dehumidifiers combine cutting-edge technical solutions and pleasant aesthetics.
The fans are electronic type with permanent magnet brushless motor and state of the art built-in inverter and ensure high performance by optimising the power consumption.
The top-quality refrigeration, hydraulic, aerolic and electrical components place the SPR units with heat recovery of the dehumidifiers at a state of the art level in terms of efficiency, reliability and sound power emitted

Components

The unit has a unique design that gives the assembly a pleasant aesthetic as well as ensure complete accessibility, with closed unit, to all components: this aspect, together with the use of high quality equipment, reduces the level of emitted sound power, to exceptionally low levels
Most panels can be removed for complete access to the unit. Access to filters, fans, compressor compartment and recuperator is required for routine maintenance. Access is facilitated by removable panels that enable working completely free of obstacles. All screws and fastening systems are made with non-oxidising materials, stainless steel or carbon steel with surface passivation treatments
The components distribution guarantees easy access and the lay-out an optimum distribution of the weights on the unit plan
The fans are radial with reverse blades, directly coupled to the permanent magnet brushless motor, thereby ensuring reduced consumption and sound power emission. This solution allows installing the ACF (automatic control flow) option, which permits the self-calibration of the unit to the set air flow rate without the need for manual adjustment through dampers, always maintaining the design flow rate

Technical data

	SPR
Model size: ˃		100	130	160	190	210	260	300	350	450	580	750	950	1100	1400	1500	1700	1900	2200	3000	4500
Dehumidification capacity 1	l/24h	100	128	157	190	210	268	302	358	452	581	760	955	1120	1350	1480	1710	1870	2180	2960	4650
Circuits/Compressors		1/1	1/1	1/1	1/1	1/1	1/1	1/1	1/1	1/1	1/1	1/1	1/1	2/2	2/2	2/2	2/2	2/2	2/2	2/2	2/2
Type of compressor		Rotary			Scroll	Scroll			Scroll			Scroll		Scroll		Scroll				Scroll	Scroll
Nominal air flow	m3/h	900	1200	1600	1600	2000	2800	2800	3800	4000	4800	7000	8200	11000	12500	13000	15000	15000	17000	25000	35000
Renewal air flow	m3/h	0-900	0-1200	0-1200	0-1200	0-2000	0-2000	0-2000	0-2000	0-2000	0-2000	0-6000	0-6000	0-11000	0-12500	0-13000	0-13000	0-13000	0-13000	0-20000	0-28000
Cooling capacity2	kW	4.9	6.5	8	10	11	15	16	19	23	30	38	50	56	66	75	86	96	110	148	226
Heat recovery effect	%	70	70	70	70	70	70	70	70	70	70	70	70	70	70	70	70	70	70	70	70
Recovered termal power in winter 3	kW	6.6	8.7	8.7	8.7	14.5	14.5	14.5	1.5	14.5	14.5	43.4	43.4	80	90.8	94.5	94.5	94.5	94.5	141.2	202.5
N explusion fan		1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	3	3	3	4	5
Available static pressure supply fan	Pa	400	400	350	350	400	200	200	460	440	400	650	600	750	600	500	480	480	400	300	280
Explusion fans		1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2	2	2	3	4
Available static pressure explusion fans fan	Pa	400	400	400	400	430	400	400	500	480	420	480	450	1050	950	700	650	650	600	480	450
Hot water coil nominal heating capacity	kW	5.5	9.8	9.8	9.8	16.5	17	17	26.5	26.5	27	48	55	76	83	98	107	107	118	168	235
Nominal water flow	m3/h											4.13	4.73	6.54	7.14	8.43	9.2	9.2	10.15	14.45	20
Water pressure drop including valve	kPa	12	38	38	38	30	31	31	40	40	40	36	38	55	58	60	63	63	68	60	80
Oversized hot water coil nominal heating power 5	kW	4.1	5.2	7	7	8.6	12.1	12.1	16.1	17.6	20.2	36.3	41.2	50.3	55.5	61.5	68.8	68.8	75.8	113	158.2
Nominal water flow	m3/h	0.72	0.9	1.21	1.21	1.51	2.11	2.11	2.81	3.07	3.52	6.33	7.19	8.78	9.68	10.73	12	12	13.23	19.72	2.61
Water pressure drop including valve	kPa	28	41	92	92	20	48	48	8	12	16	71	88	15	18	9	11	11	13	36	100
Desuperheater heating power	kW	1.7	2	2.5	2.8	2.9	4.6	4.8	4.3	5.8	8.1	11.5	14.5	14	18	19	22	25	29	38	55
Nominal water flow	m3/h	0.3	0.35	0.43	0.48	0.5	0.8	0.8	0.7	1	1.4	2	2.5	2.4	3.1	3.2	3.8	4.3	5	6.4	9.5
Water pressure drop	kPa	15	20	21.2	21.9	23.7	26.3	26.8	26.8	29.2	34.8	43	50.3	32.1	37	38.2	41.8	45.5	50.3	60	87
Maximum absorbed electrical power 5	kW	3.2	3.3	4.4	6.1	6.5	7.8	8	0.6	11.2	14.4	18.9	22.6	28.5	31.8	34.2	40.4	43.8	47.8	68	96
Power supply	V/ph/Hz	230/ 1+N / 50				4000/ 3+N / 50			4000/ 3+N / 50			4000/ 3+N / 50		4000/ 3+N / 50		4000/ 3+N / 50				4000/ 3+N / 50
Sound pressure 6	dB(A)	57	57	61	62	63	63	64	65	65	66	67	67	69	70	71	72	72	73	74	75
Weight	kg	155	155	160	165	200	210	220	250	270	300	515	540	870	1060	1280	1280	1290	1290	1680	2825

Notes

1 - Dehumidification capacity is declared with ambient air at 30°C / 80% RH

2 - Only STR models. Cooling capacity is declared with ambient air at 30°C / 80% RH and outdoor air at 30°C / 50% RH

3 - Heat recovery efficiency and recovered thermal power are declared in winter conditions: outdoor air -5°C 80% RH, indoor air 26°C 60% RH, maximum renewal

4 - Hot water coil capacity is declared with ambient air at 30°C, water inlet 80°C and outlet 70°C

5 - Hot water oversized coil capacity is declared with ambient air at 25°C, water inlet 45°C and outlet 40°C

6 - Absorbed electrical power is declared with ambient air at 30°C / 80% RH and nominal air flow

7 - Pressure sound level measured in free field at 1 m from the unit

8 - STR 4500: two single-circuit remote condensers; data referring to one piece

Dimensions

SPR-STR	Dimentions			Clearances
SPR-STR	A (mm)	B1 (mm)	C (mm)	D (mm)	E (mm)	F (mm)
100	550	1452	1320	500	500	500
130	550	1452	1320	500	500	500
160	550	1452	1320	500	500	500
190	550	1452	1320	500	500	500
210	850	1452	1320	800	500	500
260	850	1452	1320	800	500	500
300	850	1452	1320	800	500	500
350	850	1682	1769	800	500	500
450	850	1682	1769	800	500	500
580	850	1682	1769	800	500	500
750	1400	2331	1950	1300	500	500
950	1400	2331	1950	1300	500	500
1100	1950	2510	2385	1500	1000	1000
1400	1950	2510	2385	1500	1000	1000
1500	2500	2510	2385	1500	1000	1000
1700	2500	2510	2385	1500	1000	1000
1900	2500	2510	2385	1500	1000	1000
2200	2500	2510	2385	1500	1000	1000
3000	3390	2510	2385	1500	1000	1000
4500	4430	2510	2385	1500	1000	1000

Type of accesses

Options

SPR units with heat recovery are designed to be used in small, medium and large sized swimming
pools where the adjustment of the humidity level and/or prevention of condensation phenomena
are required, even in 24h running and where a constant air exchange is necessary.
SPR dehumidifiers combine cutting-edge technical solutions and pleasant aesthetics.
The fans are electronic type with permanent magnet brushless motor and state of the art built-in
inverter and ensure high performance by optimising the power consumption.
The top-quality refrigeration, hydraulic, aerolic and electrical components place the SPR units with
heat recovery of the dehumidifiers at a state of the art level in terms of efficiency, reliability and
sound power emitted

Composition

The unit has a unique design that gives the assembly a pleasant aesthetic as well as ensure complete accessibility, with closed unit, to all components: this aspect, together with the use of high quality equipment, reduces the level of emitted sound power, to exceptionally low levels
Most panels can be removed for complete access to the unit. Access to filters, fans, compressor compartment and recuperator is required for routine maintenance. Access is facilitated by removable panels that enable working completely free of obstacles. All screws and fastening systems are made with non-oxidising materials, stainless steel or carbon steel with surface passivation treatments
The components distribution guarantees easy access and the lay-out an optimum distribution of the weights on the unit plan
The fans are radial with reverse blades, directly coupled to the permanent magnet brushless motor, thereby ensuring reduced consumption and sound power emission. This solution allows installing the ACF (automatic control flow) option, which permits the self-calibration of the unit to the set air flow rate without the need for manual adjustment through dampers, always maintaining the design flow rate

Options

ACF: Automatic control flow
This option allows setting a constant air flow rate in the unit; in the event of pressure drops along the ducts other than those foreseen by the system designer, the unit will adapt to maintain the set air flow rate, regardless of the shape, length and pressure drop of the duct
Hot water re-heat coil
It consists of a hot water re-heat coil and its purpose is to heat the supply air through hot water coming from a boiler or a heat pump
Hot water re-heat coil with modulating or ON/OFF valve
It consists of a hot water reheat coil and a valve and their purpose is to heat the environment through hot water coming from a boiler or a heat pump, tracking a set temperature set on the user command
De-super heater
It consists of a device able to dissipate the compressor heat load; it is suitable for installations in public or private swimming pools where the pool water requires heating
Dirty filter sensor
It consists of a differential pressure switch, which detects when the filters are clogged and compromise proper unit operation. This means the filters must be cleaned when signalled and not constantly
Soft start
It consists in a soft start device for every compressor in order to reduce inrush current upon start-up, following a pre-set ramp
Serial board RS 485
Connection to RS485 bus is made available for unit supervision by remote or by home automation system (further information available from the technical department)
Air filters with EU4 efficiency
This type of filter, replacing the polyurethane model in the dehumidifier, increases air purification and holds dust particles more effectively
Condensate drain pump
It consists in a pump that collects and drains the condensate of the dehumidifier. This option is particularly useful when the dehumidifier cannot drain the condensate by gravity (for example when located in a basement). The pump is equipped with a double contact float, which activates it and, if a certain threshold is exceeded, turns the compressors off and sets off the alarm
Clock - time slots board
It consists of an additional clock board and a control software that allow the dehumidifier to operate in daily time slots, setting the humidity, temperature, air renewal and on-off values
Stainless steel structure
All units can be equipped with stainless steel structure
Electric coils
It consists of multi-stage electric coils and allows heating the supply air when hot water is not available. Safety is ensured by a thermostat, which, in the event of overheating, immediately switches the coils off and sets off an alarm
Wall remote terminal
It consists of an outdoor device to be fitted on the wall that controls all dehumidifier functions. The electronic control on the machine and the remote terminal are identical from a dimensional, aesthetic and electronic (hardware) point of view
Outdoor version
Thanks to specific modifications to the carpentry and electronics, the unit can be installed outdoors without inserting it in a specific technical room
Pressure gauges
All units can be equipped with high and low pressure gauges for every refrigerant circuit. They immediately show the pressure levels in the refrigerant circuit
Summer/winter function
The summer/winter function allows heating with hot water in the winter and cool with cold water in the summer (This option must be combined with the function Hot water re-heat coil with modulating or ON/OFF valve)

Performance curves

Operating mode

Principle scheme

1. Air intake from outdoors

2. Air intake from the environment

3. Exhaust air expelled outside

4. Exchanged air flow in the environment

5. High efficiency cross-flow heat recovery

6. Exhaust air intake fan

7. Air flow fan

8. External air intake damper

9. Environment air recirculation damper

10. Gravity expulsion air damper

11. Compressor

12. Evaporator coil

13. Condenser coil

14. Water reheat coil (optional)

15. External fresh air filter

16. Indoor recirculation air filter

The SPR units can renew ambient air up to a maximum of 75% of the machine nominal flow rate. The fresh air value must be specified when ordering. The manufacturer will calibrate the damper and intake fan to respect the wanted fresh air value.

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