R148HPY005 GIACOMINI | Alldatasheet
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Technical content
Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com Freezing protection valve for monobloc heat pumps R148HP Datasheet 1108EN 03/2024 PRODUCT CODE CONNECTIONS CONNECTION CODES R148HPY005 G 1”M P15Y015: pair of tail pieces 1”F x 1/2”M, with nut and gasket P15Y016: pair of tail pieces 1”F x 3/4”M, with nut and gasket P15Y017: pair of tail pieces 1”F x 1”M, with nut and gasket P15FY004: pair of tail pieces 1”F x 3/4”F, with nut and gasket P15FY005: pair of tail pieces 1”F x 1”F, with nut and gasket RM179Y073: straight multitong press fitting, with nut and gasket, 1”F x (26x3) RM179Y074: straight multitong press fitting, with nut and gasket, 1”F x (32x3) R148HPY006 G 1-1/4”M RM179Y082: straight multitong press fitting, with nut and gasket, 1-1/4”F x (40x3,5) R148HPY007 G 1-1/2”M RM179Y093: straight multitong press fitting, with nut and gasket, 1-1/2”F x (50x4) Versions and product codes Freezing protection valve is key to prevent damages to the system caused by the formation of ice. Specifically designed for monobloc heat pump systems, this valve allows to drain circuit fluids when the temperature drops to 1 °C. NOTE. Freezing protection valve is designed to work with glycol-free heat pump systems. VIDEO Frame the QR code with your smartphone or tablet to view the video tutorial.
Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com
1 Vacuum breaker valve
2 Valve body
3 Drain valve with thermostatic sensor
Components Performance
- Fluid: water
- Temperature range: 0÷65 °C
- Outdoor air temperature range: -30÷60 °C
- Fluid temperature for drain opening: 1 °C
- Fluid temperature for drain closing: 4 °C ±1
- Max working pressure: 8 bar
- Kv (with straight pipes): 1”: 60 m3/h 1-1/ 4”: 70 m3/h 1-1/2”: 90 m3/h Technical data Materials
- Main body: CW617N - UNI EN12165 brass
- Drain valve with thermostatic sensor: CW603N brass
- Cap: CW617N - UNI EN12164 brass
- Vacuum breaker valve: POM
- Seal elements: EPDM
Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com 0-1 1 DRAIN OPENING HYSTERESIS RANGE DRAIN CLOSING 2 3 4 5 6 Tfluid [°C] HYSTERESIS RANGE. If the drain of the freezing protection valve is closed, it will remain closed until the water temperature drops below 1 °C. If the drain of the freezing protection valve is open, draining the water, it remains open and keeps draining until the water temperature returns above 4 °C. Operation When the water temperature drops down to 1 °C, the valve opens and drain the pipe to prevent freezing. NOTE. During normal operation of the heat pump, the chances for the fluid temperature to drop below 1 °C are extremely remote. Freezing protection valves generally brake into action when the heat pump is cut off from power for extended periods of time (such as blackouts and failures). R148HP R148HP T ≥ 4°C T ≥ 4°C R148HP R148HP T ≤ 1°C T ≤ 1°C/ban_circle The freezing protection valve activates when the temperature of the glycol-free water reaches the freezing temperature. When the temperature of the water rises above 4 °C, the freezing protection valve closes and the system returns to normal operations. R148HP R148HP T ≥ 4°C T ≥ 4°C R148HP R148HP T ≤ 1°C T ≤ 1°C/ban_circle WARNING. Following a power cut off to the heat pump, check the system pressure.
Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com Dimensions PRODUCT CODE CONNECTIONS A B [mm] C [mm] D [mm] R148HPY005 G 1”M 57 54 32,5 R148HPY006 G 1-1/4”M 57 58,5 37 R148HPY007 G 1-1/2”M 57 61,5 40 A A B C D Installation For correct use:
- the freezing protection valve should NOT be insulated or covered by other materials.
- avoid siphoning as it may prevent drainage of the fluid left in the circuit.
- provide for an automatic filling unit, always active and open.
- before installation, clean the system pipes and install appropriate filtering devices. >15 cm >10 cm Freezing protection valves must be installed:
- only vertically, with the drain facing downwards.
- with the drain facing downward to channel the drain fluid to an appropriate collection point and avoid the formation of ice in trampling areas. Leave a gap of at least 15 cm between the drain valve and the collection point to prevent ice stacks of drained fluid.
- on both delivery and return pipes, keeping a distance between the two valves of at least 10 cm, possibly with the pipes slightly slanted towards the freezing protection valves.
- outside the building, on the point where the pipes may reach the lowest temperatures should the heat pump fail to work.
- far from other heat sources and protected by rain, snow and direct sunlight. >15 cm >10 cm
Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com Product specifications R148HP Freezing protection valve for monobloc heat pump systems. It drains the circuit fluid when its temperature drops to 1 °C and prevents the formation of ice inside the system pipes. Available with threaded connections from G 1”M to G 1-1/2”M. Main body, cap and drain valve with thermostatic sensor: brass. Vacuum breaker valve: POM. Seal elements: EPDM. Fluid: water. Temperature range: 0÷65 °C. Room temperature range: -30÷60 °C. Fluid temperature for drain opening: 1 °C. Fluid temperature for drain closing: 4 °C ±1. Max working pressure: 8 bar. Package Disposal. Carton boxes: paper recycling. Plastic bags and bubble wrap: plastic recycling. Product Disposal. Do not dispose of product as municipal waste at the end of its life cycle. Dispose of product at a special recycling platform managed by local authorities or at retailers providing this type of service. Safety Warning. Installation, commissioning and periodical maintenance of the product must be carried out by qualified operators in compliance with national regulations and/or local standards. A qualified installer must take all required measures, including use of Individual Protection Devices, for his and others’ safety. An improper installation may damage people, animals or objects towards which Giacomini S.p.A. may not be held liable. Additional information. For more information, go to giacomini.com or contact our technical at any time, without notice and for technical or commercial reasons, the items included herewith. The information included in this technical sheet do not exempt the user from strictly complying with the rules and good practice standards in force.