Daikin EWWT100Q - 11 Discharge of the Refrigerant from the Safety Valves

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D-EIMHP01702-23_00EN- 68/72

11 DISCHARGE OF THE REFRIGERANT FROM THE SAFETY VALVES

Avoid discharging refrigerant from the safety valves at the installation site. If necessary, it is possible to connect them to discharge

pipes, the transversal section and length of which must comply with the national laws and the European directives.

Main Page

Table of Contents2
Fig. 1 - Typical Refrigerant Circuit for Cooling Only Version (EWWT-Q)5
Fig. 2 Typical Circuit for Moto-Evaporating Version (EWLT-Q)6
Fig. 3 Typical Refrigerant Circuit for Heat Pump Version7
Fig. 4 Typical Hydronic Manifold and Pump Module Circuit8
Fig. 5 Connection of more Unit-Manifold Systems Together and with Pump Module11
Introduction13
Precautions against Residual Risks13
General Description14
Information about the Refrigerant Used14
Installation Requirements14
1.1. Information about Installation of Systems with R3215
Receiving the Unit17
Operating Limits18
Storage18
Fig. 6 - EW(W/H)T-Q Operating Limits18
Fig. 7 - EWLT-Q Operating Limits18
Table 1 -Minimum Percentage of Glycol for the Low Water Temperature19
Mechanical Installation20
Safety20
Handling and Lifting20
Fig. 8 - Handling of the Single Circuit Unit21
Fig. 9 - Alternative Handling Method with Forklift21
Positioning and Assembly22
Noise and Sound Protection22
Water Circuit for the Connection of the Unit22
Water Piping22
Fig. 10 - Alternative Handling Method with Pallet Truck22
Water Piping Installation Procedure23
Fig. 11 - Reference Drawing for Evaporator and Condenser Identification24
Fig. 12 - Evaporator and Condenser Flow Switch Positions26
Fig. 13 - Cables Routing of Evaporator Flow Switch26
Fig. 14 - Cables Routing of Evaporator Flow Switch27
Fig. 15 - Electrical Panel Entry Point for Evaporator and Condenser Flow Switch Cables27
Fig. 16 - Water Temperature Probe27
Piping Insulation28
Water Treatment28
Table 2 - DAE Water Quality Requirements28
Operating Stability and Minimum Water Content in the System29
Anti-Freeze Protection for Evaporator and Recovery Exchangers29
Table 3 - Minimum Water Flow29
Guidelines for Remote Condenser Application (Ewlt-Q Version)30
Selection of Piping Material30
Installation Information for Condenserless Units30
Connecting the Refrigerant Circuit30
Fig. 17 - Connecting the Refrigerant Circuit (1)31
Fig. 18 - Connecting the Refrigerant Circuit (4)31
To Braze the Pipe End32
Leak Test and Vacuum Drying32
Charging the Unit32
Fig. 19 - Pipe Brazing32
Fine-Tuning of Refrigerant Charge While Unit Is Operating33
Oil Charge33
Electrical Installation34
To Install the Main Switch Handle and Shaft34
Fig. 20 - Handle Assembly Instructions34
Fig. 21 - Details of the Pistol Handle34
General Specifications35
About Electrical Compliance (Only for EWWT100)36
Electrical Supply36
Electric Connections36
Cable Requirements37
Phase Unbalance37
Connection of the Power Supply of the Unit37
Table 4 - Table 1 of EN60204-1 Point 5.237
Electrical Panel Label Description38
Fig. 22 - Identification of the Labels Applied to the Electric Panel (Standard*)38
Additional Guidelines for Modular Applications39
Water Manifold Module Installation39
Connection between Manifold Module and Chiller Unit39
Table 5 - Modular Combinations39
Partial Heat Recovery with Manifold Module40
Fig. 23 - Connection Instructions between Chiller and Manifold Modules40
Fig. 24 - PHR Pipes with Manifold Module (at Left for 3Inch - at Right for 5Inch Manifold Pipes)40
Reference Drawing in Case of Custom Water Piping41
Connection of Modular System41
Mechanical Connection41
Fig. 25 - Water Piping Configuration41
Fig. 26 - Modular Systems Connection41
Water Manifold Connection42
Motor for Plate Heat Exchanger Shut-Off Valve42
Fig. 27 - Water Manifold Sizes42
Fig. 28 - Water Connection to Modules42
Motor Mechanical Installation43
Fig. 29 - Mounting Instructions for Valve Actuator43
Fig. 30 - Mounting Instructions for Actuator Limit Switches43
Valve Actuator and Limit Switch Electrical Installation44
Fig. 31 - Mounting Indications for Valve Actuator44
Fig. 32 - Wiring Diagram for Motor (Left Figure) and Limit Switches (Right Figure)44
Fig. 33 - Cable Adapters for Evaporator Shut off Valve Actuator and Limit Switches45
Fig. 34 - Cable Adapters for Condenser Shut off Valve Actuator and Limit Switches45
Fig. 35 - Shut off Valve Actuator Wiring Diagram45
Fig. 36 - Evaporator Shut off Valve Actuator Cable Routing46
Fig. 37 - Condenser Shut off Valve Actuator Cable Routing46
Setting of Limit Switches Trigger47
Fig. 38 - Electrical Panel Entry for Evaporator and Condenser Shut off Valve Actuator Cables47
Connection of Stacked Units48
Connection of more Unit-Manifold Systems Together48
Fig. 39 - Setting of Limit Switches Trigger48
Fig. 40 - Mounting Instructions for Stacked Units48
Pump Module Installation49
Fig. 41 - Mounting Instructions for more Unit-Manifold Systems Together49
Fig. 42 - Pump Module Installation49
Fig. 43 - Pump Module Installation - Piping Details49
Handling of the Modules50
Fig. 44 - Handling of Manifold Module50
Fig. 45 - Handling of Unit and Manifold Modules50
Fig. 46 - Indications for Stacked Units Installation51
Fig. 47 - Handling of Pump Module Using Forklift51
Electrical Installation of Modules52
Fig. 48 - Handling of Pump Module Using for Pallet Truck52
Fig. 49 - Power Bar System52
Fig. 50 - Cables Routing between Bar System and Unit52
Power Bar System Mechanical Installation53
Fig. 51 - Details of Cables Routing53
Fig. 52 - Fixing of the Power Bar System to the Unit53
Power Bar System Electrical Connection54
Fig. 53 - Connection of the Power Bar Modules Together54
Fig. 54 - Details of Connection of the Power Bar Modules Together54
Fig. 55 - Detail of the Fuses and of the Box for Cables Routing of the Power Bar Module55
Fig. 56 - Detail of Electrical Connection for the Initial Unit Module55
Fig. 57 - Detail of Electrical Connection for any Other Unit Module56
Fuses Replacement for Power Bar System57
Fig. 58 - NH Fuse Switch Disconnector57
M/S (MUSE) Probes Installation58
Fig. 59 - Positions of the Temperature Probes for 3" and 5" Manifold59
Unit Modules M/S (MUSE) Connection60
Before Starting60
Fig. 60 - Details of Probes Positioning on the Pipes60
Fig. 61 - Connection of 4 Plcs on the same Modbus Network60
Fig. 62 - Evaporator Pressure Drops61
Fig. 63 -Condenser Pressure Drops61
Operator's Reponsibilities62
Maintenance63
Pressure / Temperature Table64
Routine Maintenance64
Electrical Maintenance64
Service and Limited Warranty64
Table 6 - Pressure / Temperature of the R3264
Table 7 - Standard Routine Maintenance Plan65
10 Before Start-Up66
Fig. 64 - Wiring for Connecting the Unit at the Place of Installation67
11 Discharge of the Refrigerant from the Safety Valves68
Periodic Obligatory Checks and Starting up Ofthe Groups (Units)69
13 Important Information on the Refrigerant Used70
Factory and Field Charged Units Instructions70
14 Periodic Checks and Commissioning of Pressure Equipment71
15 Dismission and Disposal71
16 Duration71

Daikin EWWT100Q - 11 Discharge of the Refrigerant from the Safety Valves

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