AIR-TO-WATER HEAT PUMP WITH INTEGRATED HYDRONIC MODULE 30RQM/30RQP 160-520
State-of-the-art concept - Two independent refrigerant circuits; the second one automatically takes over, if the ﬁrst one develops a fault, maintaining partial cooling under all circumstances - All compressor components are easily accessible on site minimising down-time - V-coil design to protect the coils against hail impact - Optional anti-corrosion coil coating for use in moderately corrosive environments. - Electronic ﬂow switch. Auto-setting according to cooler size and ﬂuid type Auto-adaptive control - Control algorithm prevents excessive compressor cycling and permits reduction of the water quantity in the water loop (Carrier patent)
Automatic compressor unloading in case of abnormally high condensing pressure Automatic fan speed adjustment in case of coil fouling (30RQP models) Smooth fan start to increase unit lifetime (30RQP models). ENERGY MANAGEMENT MODULE (p4 du PSD) HYDRONIC MODULE (p6 du PSD) VARIABLE WATER FLOW SYSTEM (p7 du PSD)
Exceptional endurance tests - Partnerships with specialised laboratories and use of limit simulation tools (ﬁnite element calculation) for the design of critical components - Transport simulation test on an endurance circuit based on a military standard.
The Touch Pilot features a control with advanced communication technology over Ethernet (IP), user-friendly and intuitive user interface with 5” colour touch screen. Energy management - Internal time schedule clock: Controls heat pump on/ off times and operation at a second set-point - Set-point offset based on the outside air temperature - Master/slave control of two heat pumps operating in parallel with operating time equalisation and automatic change-over in case of a unit fault. Integrated advanced communication features - Night mode: Capacity and fan speed limitation for reduced noise level - With hydronic module: Water pressure display and water ﬂow rate calculation - Easy and high-speed communication technology over Ethernet (IP) to a building management system - Access to multiple unit parameters. 5" Touch Pilot user interface Intuitive and user-friendly 5 inch touch screen interface Concise and clear information is available in local languages Complete menu, customised for different users (end user, service personnel or Carrier engineers).
Remote management (standard)
Units with Touch Pilot control can be easily accessed from the internet, using a PC with an Ethernet connection. This makes remote control quick and easy and offers signiﬁcant advantages for service operations. The AquaSnap is equipped with an RS485 serial port that offers multiple remote control, monitoring and diagnostic possibilities. Carrier offers a vast choice of control products, specially designed to control, manage and supervise the operation of an air conditioning system. Please consult your Carrier representative for more information. The AquaSnap also communicates with other building management systems via optional communication gateways. A connection terminal allows remote control of the AquaSnap by wired cable: - Start/stop: Opening of this contact will shut down the unit - Dual set-point: Closing of this contact activates a second set-point (example: unoccupied mode). - Demand limit: Closing of this contact limits the maximum heat pump capacity to a predeﬁned value. - Operation indication: This volt-free contact indicates that the heat pump is operating (cooling load). - Alarm indication: This volt-free contact indicates the presence of a major fault that has led to the shut-down of one or several refrigerant circuits.
Touch Pilot control