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Rotex HPSU compact 308 Installation Instructions Manual

Solar tank with integrated interior heat pump unit
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Download this manual See also: Instruction Manual, Installation and Maintenance Manual
For the qualified installer
ROTEX HPSU compact 308
Solar tank with integrated interior heat
pump unit

Installation instructions

Types
HPSU compact 308
Serial Number
Customer
GB
Edition 02/2012

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Summary of Contents for Rotex HPSU compact 308

  • Page 1: Installation Instructions

    For the qualified installer ROTEX HPSU compact 308 Solar tank with integrated interior heat pump unit Installation instructions Types Edition 02/2012 HPSU compact 308 Serial Number Customer...
  • Page 2 The legal guarantee conditions fundamentally apply. Our warranty conditions beyond that can be found online on your sales presentative's webpage. Declaration of conformity for the Solar tank with integrated interior heat pump unit (ROTEX HPSU compact). We, ROTEX Heating Systems GmbH, declare under our sole responsibility that the products Product Order No.

  • Page 3: Table Of Contents

    Connection of ROTEX Solaris installation ........

  • Page 4: Safety

    Please read this manual carefully and thoroughly before proceeding with the installation or modification of the heating system. Relevant documents – ROTEX HPSU compact; the associated operating instructions and the operating manual for the operator. – External unit for ROTEX HPSU compact; the associated installation and operating instructions.

  • Page 5: Avoiding Danger

    Results of actions are identified with an arrow. Avoiding danger The ROTEX HPSU compact is state-of-the-art and is built to meet all recognised technical requirements. However, improper use may result in serious physical injuries or death, as well as property damage.

  • Page 6: Intended Use

    Intended use The ROTEX HPSU compact may only be used for the preparation of hot water, as a room heating system or as a room cooling system. The ROTEX HPSU compact must be installed, connected and operated only according to the indications in this manual.
  • Page 7 Instruct the operator • Before you hand over the ROTEX HPSU compact, explain to the user/owner how to operate and check the system. • Document the handover by filling out the installation and instruction forms together with the owner and sign them.

  • Page 8: Set-Up And Installation

    Dimensions and connections Solaris feed Connection refrigerant gas line Cold water Connection refrigerant fluid line Hot water Heating feed Front Heating return flow Back Fig. 2-1 Connections and dimensions HPSU compact (General) FA ROTEX HPSU compact 308 - 02/2012...
  • Page 9 Ball cock (heating circuit) Pay attention to the tightening torque (see chapter 6.3 "Tightening torque") Ball cock (1" internal thread) is included in the delivery Fig. 2-2 Connections and dimensions HPSU compact (top of unit) FA ROTEX HPSU compact 308 - 02/2012...
  • Page 10 Ball cock (1" internal thread) is included in the to storage tank charging Panel heat exchanger delivery Connection refrigerant fluid line CuT, Ø 6.4 mm (1/4") Fig. 2-3 Connections and dimensions HPSU compact (Side view and interior) FA ROTEX HPSU compact 308 - 02/2012...

  • Page 11: Installation

    • Flush the feed pipes before filling the heat exchanger. • Rinse out the heat distribution network (in the existing heating system). • Install dirt filter in the heating return line (e. g. SFR 28 15 60 11). FA ROTEX HPSU compact 308 - 02/2012...

  • Page 12: Electrical Connection

    For this reason, these lines must have a temperature for continuous use of 90 °C. • For the following connections, use only calbes with a long-term use temperature 90 °C: – Exterior heat pump unit – Backup-heater (optional) FA ROTEX HPSU compact 308 - 02/2012...

  • Page 13: Installation Of Cables

    6. Lay cables in the right assembly position. and make the electrical housing cover. connections (see section 2.4.2). Fig. 2-12 7. Install the right housing cover. Fig. 2-13 8. Fasten cabling on the storage container. FA ROTEX HPSU compact 308 - 02/2012...

  • Page 14: Connection Diagrams

    Set-up and installation 2.4.2 Connection diagrams Overall connection diagram Fig. 2-14 Overall connection plan - for disconnection of the outdoor and indoor unit by EVU FA ROTEX HPSU compact 308 - 02/2012...
  • Page 15 Set-up and installation Fig. 2-15 Overall connection plan - for disconnection of the outdoor unit by the EVU (the HPSU compact interior unit is not disconnected) FA ROTEX HPSU compact 308 - 02/2012...
  • Page 16 Overview, circuit boards of control unit Connection assignment, circuit board A1P The A1P circuit board comes pre-connected to the unit. No assembly or connection work is necessary on the A1P circuit board! Fig. 2-17 Circuit board A1P FA ROTEX HPSU compact 308 - 02/2012...
  • Page 17 Set-up and installation Connection assignment, XR1P circuit board Fig. 2-18 XR1P circuit board 230 V, 50 Hz mains voltage = Connection diagram in this manual = Connection diagram in the manual for the part FA ROTEX HPSU compact 308 - 02/2012...

  • Page 18: Connection Of Exterior Heat Pump Unit Rrlq

    Connection to exterior heat pump unit - for disconnection of the outdoor and indoor unit by EVU Fig. 2-20 Connection to exterior heat pump unit - for disconnection of the outdoor unit by the EVU (the HPSU compact interior unit is not disconnected) FA ROTEX HPSU compact 308 - 02/2012...

  • Page 19: Connection To Backup Heater

    On-site cabling Minimum clearance contact (>3 mm) BUH connection variants 3-phase Switching contactor BUH connection variants 1-phase (observe country-specific connection conditions - request from responsible power company (EVU))! Fig. 2-21 Connecting optional backup heater FA ROTEX HPSU compact 308 - 02/2012...

  • Page 20: Connection Of Room Thermostat

    The connection of the room thermostat to a ROTEX HP convector is described in section 2.4.6. Installation without room thermostat: The cable bridge- mounted on-site - is recommended by ROTEX as otherwise problems may arise due to the cyclical circulation pump during heating operation. The DIP switch 3 (see tab. 3-1, chapter 3 "Start-up") must be set to "ON".

  • Page 21: Connecting The Rotex Hp Convector

    Set-up and installation 2.4.6 Connecting the ROTEX HP convector ROTEX HP convector (Heating/Cooling) + ROTEX HPSU compact (Floor heating) without room thermostat – Original ROTEX connector cable (HPc-VK 14 20 14) – Control of 2-way valve*. – DIP switch setting SS2-3 on circuit board A1P = OFF (see also tab.

  • Page 22: Low-Cost Connector (Ht/Nt)

    For connection type 2 or type 3: • Remove jumper X7 on the HPSU compact and • Connect mains connection of the HPSU compact to N and 1L. Fig. 2-30 Connection types 2 and 3 FA ROTEX HPSU compact 308 - 02/2012...

  • Page 23: Connection Of Switching Contact (Aux Output)

    X1 (XR1P) RPS3 The required burner block contact cable is included with the SOL-PAC ( 14 05 27). Fig. 2-33 Connection BSK contact for optional Solaris installation FA ROTEX HPSU compact 308 - 02/2012...

  • Page 24: Symbols, Key Designations, Cable Colours And Complementing Instructions To The Connection And Electrical Circuit Diagrams

    Plug connection backup-heater (BUH) Additional heating for exterior heat pump unit Terminal rail FLS100 FlowSensor X2M6 Terminal for HP convector connector cable HPR1 Main control unit X2M7 Terminal for HP convector connector cable FA ROTEX HPSU compact 308 - 02/2012...
  • Page 25 Plug connection PWM (not in use) Flow temperature sensor backup-heater 1 Plug connection SolPac C (A4P) V, BH1 Pre-temperature sensor 1 (for backup-heater) V, BUH1 Tab. 2 -2 Key names for connection and circuit diagrams FA ROTEX HPSU compact 308 - 02/2012...

  • Page 26: Laying Refrigerant Lines

    • Open stop valve on exterior unit completely until the stop. Tighten loosely. • Reassemble valve caps. • Check whether the storage temperature probes are inserted to a depth of t and t 80 cm. DHW1 DHW2 FA ROTEX HPSU compact 308 - 02/2012...

  • Page 27: Start-Up

    If necessary, readjust by refilling Initial start-up After the ROTEX HPSU compact was installed and connected completely, it will need to be undergo a one-time adaptation to the installation environment to be carried out by technical personnel (configuration). After this configuration is complete, the installation is ready for operation and the operator can make additional custom config- urations on it.

  • Page 28: Test Run And Setting Of Minimum Flow

    – Close ventilation screw on the circulation pump again. • Ventilate heating system. • Check minimum flow when heating circuit closed and bypass valve configured: – Minimum flow 6-8 kW HPSU compact:>12 l/min FA ROTEX HPSU compact 308 - 02/2012...

  • Page 29: Set Parameters Of Main Control Unit Hpr1

    • Enter the technician password Fig. 3-3 Login heating specialist • Set commissioning parameter according to the system requirements (see tab. 4 -5, menu item "start-up" in section 4.3.1) Fig. 3-4 Enter set-up parameters FA ROTEX HPSU compact 308 - 02/2012...
  • Page 30 4. Long press on the OK button. Main menu appears. 5. In the main menu, log in as a heating specialist (see section "Enter the technician password", page 29). Fig. 3-8 Call up the main menu FA ROTEX HPSU compact 308 - 02/2012...
  • Page 31 Setting for FH parameters (see also instruction manual > section Parameter settings > Additional control unit (HPRA1)) Target flow temperature Days VLSoll Fig. 3-10 Progress of screed function over time for function heating (maximum temperature = 40 °C) FA ROTEX HPSU compact 308 - 02/2012...
  • Page 32 • Set the desired flow temperature or activate weather-dependent set value regulation. c) When connecting with room thermostat: • Activate room thermostat. • Set the desired flow temperature or activate weather-dependent set value regulation. Fig. 3-13 Connection options for heating/cooling contact for floor function FA ROTEX HPSU compact 308 - 02/2012...

  • Page 33: Re-Commissioning

    6. Carry out a visual inspection for leaks on all joints internally. Seal any leaks that occur in a professional manner. 7. If a ROTEX Solaris installation is connected, put this into operation in accordance with the supplied manual. After switching on the ROTEX Solaris installation, check the fill level in the buffer tank again.

  • Page 34: Parameter Settings

    (parameter settings). The user can change parameters which are not blocked by the specialist code at any time. ROTEX recommends recording any changes to parameters in the operating manual. Main control unit (HPR1) All parameters of the main control unit (HPR1) are described in detail in this section. An overview of all parameters, their factory settings and setting range are listed in a table at the end of section 4.2.

  • Page 35: Parameter Description

    – [1-03] Target value at highest ambient temperature: Target temperature at water outlet of the interior heat pump unit (HPSU compact) if the outside temperature is equal to or increases above the highest ambient temperature (Hi_A). FA ROTEX HPSU compact 308 - 02/2012...
  • Page 36 – [2-04] Holding time: Length of time the disinfection temperature must be maintained. Time Hot water temperature Disinfection temperature [2-03] Target temperature for hot water (as set on main control unit (HPR1)) Fig. 4-3 View of the control system with active "Anti-legionella system" FA ROTEX HPSU compact 308 - 02/2012...
  • Page 37 The effect is that maximum benefit is derived from the heat pump during hot water supply. 3 = Connection is as in setting 1, but with the following deviation: If the water heater is active on the heat pump, the additional heater is switched to "OFF". FA ROTEX HPSU compact 308 - 02/2012...
  • Page 38 Target temperature for hot water (as set on main control unit (HPR1)) Water temperature (Grey area = backup heater active) Fig. 4-4 View of the control system with active "Bivalence temperature and priority temperature of room heating" FA ROTEX HPSU compact 308 - 02/2012...
  • Page 39 – [7-00] Step length for hot water: Temperature difference from the set temperature of the hot water, before the backup heater (BUH) is turned off due to a no longer present booster request. FA ROTEX HPSU compact 308 - 02/2012...
  • Page 40 (see following example of the ROTEX HP convector). Application example for control with 2 set values, ROTEX HPSU compact with ROTEX HP convector Request by Room thermostat or HPSU compact controller (35 °C / 18 °C)
  • Page 41 – [8-04] Additional runtime for [4-02]/[F-01]: Determines the additional runtime to be added to the maximum runtime when the external temperature has the value [4-02] or [F-01] (see fig. 4-9 and fig. 4-10). The benefit [8-04] only fully comes into effect when the setting [4-03] is not equal to 1. FA ROTEX HPSU compact 308 - 02/2012...
  • Page 42 [F-01] 35°C Fig. 4-9 Additional runtime for heating operation Fig. 4-10 Additional runtime for cooling operation Only valid for ROTEX HPSU compact with heating and cooling function Time Restart time Ambient temperature (outside air) Maximum runtime [9] - Target value temperature ranges for room heating and room cooling With these parameter settings, you can set target value ranges for the room heating temperature and the room cooling temper- ature.
  • Page 43 4-11. The following setting options are available: – [C-00] Solar priority: 0 =ROTEX Solaris installation, 1 = Heat pump – [C-01] Alarm output logic: Do not change this setting. Leave the default setting as it is.
  • Page 44 [1-02] — — +2 °C -2°C to 2°C [1-03] +4 °C +2 °C [1-00] 0°C [1-01] -4°C to 4°C +4 °C Fig. 4-12 Increase weather-dependent target temperature regulation by 0 °C FA ROTEX HPSU compact 308 - 02/2012...
  • Page 45 OFF temperature. [F-02] Underfloor heating switched on OFF Underfloor heating switched off Fig. 4-13 Control of the underfloor heating Ambient temperature (outside air) – [F-04] Functionality of the connection X14A (cannot be set). FA ROTEX HPSU compact 308 - 02/2012...

  • Page 46: Overview Of Factory-Set Parameter Settings

    03 Control on the basis of 2 target values: 2. Target value for heating 1 55 °C 04 Control on the basis of 2 target values: 2. Target value for cooling 5 22 °C FA ROTEX HPSU compact 308 - 02/2012...
  • Page 47 02 Underfloor heating ON temperature 3 10 °C 03 Underfloor heating hysteresis °C 04 Functionality of connection X14A — — — — Value depends on specific model. Tab. 4 -4 Overview parameter settings FA ROTEX HPSU compact 308 - 02/2012...

  • Page 48: Additional Control Unit (Hpra1)

    T Limit. Temperature limit up to which the hot water tank may be dsi- HZU T Limit charged by HZU. Storage tank temperature sensor (T 20 80 °C 50 °C DHW2 must be installed. FA ROTEX HPSU compact 308 - 02/2012...
  • Page 49 The parameter depends on the configured value in the param- 8 25 l/min 12 l/min 0.5 l/min eter [INDOOR UNIT]. Minimum necessary volume flow in the system V var S 0 100 l/min (calculated value, not configurable) FA ROTEX HPSU compact 308 - 02/2012...
  • Page 50 Set value specification G-plus for BUH request at level 2 75 °C Access privileges: Tab. 4 -5 Parameter Overview N: Not visible, not configurable S: Visible but not configurable E: Visible and configurable FA ROTEX HPSU compact 308 - 02/2012...

  • Page 51: Displaying And Setting Parameters (Head Technician)

    In order to view or edit parameters which are only visible or adjustable for the specialist heating technician, the relevant password must be entered in the additional control unit (HPRA1) before selecting the relevant menu item. Fig. 4-14 For example: Setting a parameter of the additional control unit with the specialist's code FA ROTEX HPSU compact 308 - 02/2012...

  • Page 52: Hydraulic System Connection

    95 °C, another gravity brake must be installed in the building. A selection of diagrams of the most common systems is shown below. The arrangements shown are only exam- ples, and are no substitute for careful system planning. For more diagrams see the ROTEX homepage. Fig. 5-1...
  • Page 53 (flow and flow temperature measurement) HEM1 Heating circuit expansion module Accessories 15 60 64 HPSU compact ROTEX Solar tank with integrated interior heat pump unit Diaphragm expansion vessel Provided by customer 3-way-mixer with drive motor Supplied with AMK1. High-efficiency pump Supplied with HPSU compact.

  • Page 54: Technical Data

    (stainless Heat exchanger surface area steel 1.4404) Average specific thermal output 1300 Water content heat exchanger Litres Solar heating backup Heat exchanger surface area (stainless steel 1.4404) Average specific thermal output FA ROTEX HPSU compact 308 - 02/2012...
  • Page 55 Optaionl auxiliary heating Backup heater (BUH) 3G (1-phase) / 5G (3-phase) Order number 14 15 06 Tab. 6-1 Basic data HPSU compact With a reference spacing of 1 m. Upstream of safety protection. FA ROTEX HPSU compact 308 - 02/2012...

  • Page 56: Characteristic Lines

    Sensor resistance (NTC) Return temperature sensor Temperature Flow temperature sensor DHW1 DHW2 V, BH1 V, BH2 Tank temperature sensor Flow temperature sensors, backup heater Fig. 6-1 Resistance characteristics of the NTC temperature sensor HPSU compact FA ROTEX HPSU compact 308 - 02/2012...

  • Page 57: Characteristic Curves For Pumps

    25 to 30 Nm Gas line connections (cooling agent) 5/8" 63 to 75 Nm Liquid line connections (cooling agent) 1/4" 15 to 17 Nm Backup heater 1.5" max. 10 Nm (hand-tight) Tab. 6 -3 Tightening torque FA ROTEX HPSU compact 308 - 02/2012...

  • Page 58: Notes

    Notes Notes FA ROTEX HPSU compact 308 - 02/2012...

  • Page 59: List Of Keywords

    Minimum flow ........28 FA ROTEX HPSU compact 308 - 02/2012...
  • Page 60 FA ROTEX HPSU compact 308 - 02/2012...

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