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PHV2000NT CHILLED WATER HEAT PUMP,

SENSIBLE/DRY COOLING UNIT

INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS

For use with PUHZ-HW140VHA2 or YHA2 Outdoor Units

PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING INSTALLATION

Thermoscreens Ltd

St. Mary’s Road Nuneaton

Warwickshire England

CV11 5AU

Email:

[email protected]

Tel: +44 (0) 24 7638 4646
Fax: +44 (0) 24 7638 8578

www.thermoscreens.com

English

Содержание PHV2000NT

Страница 1: ...NCE INSTRUCTIONS For use with PUHZ HW140VHA2 or YHA2 Outdoor Units PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING INSTALLATION Thermoscreens Ltd St Mary s Road Nuneaton Warwickshire Englan...

Страница 2: ...allation items supplied and fitted by installer Thermoscreens PHV2000NT Dry Cooling Unit Mitsubishi Electric PUHZ HW140 Outdoor Unit Permanent 1 phase mains electrical supply Siemens RDG400 Manual Roo...

Страница 3: ...sed unvented water system must be used for the flow and return water pipework between the Thermoscreens dry cooling unit and the Mitsubishi Electric outdoor unit This should incorporate water pump s e...

Страница 4: ...his should be connected to the 15mm copper drain pipe that protrudes from the right hand rear of the cooling unit behind the plastic end cap Condensate pumps are not recommended but if a gravity drain...

Страница 5: ...is to provide warning of elevated room air temperatures which could indicate a fault in the air conditioning system or some other problem This thermostat can be set during commissioning to between 15...

Страница 6: ...chase is necessary so please keep a copy of your invoice IMPORTANT This Dry Cooling Unit is intended only for use with a Mitsubishi Electric PUHZ HW140VHA2 or YHA2 Air to Water Outdoor Unit These inst...

Страница 7: ...fixing system not supplied needs to be used to fix the brackets to the wall taking into account the type of wall and the weight of the unit 76kg Step 1 Refer to Figure 1 Page 8 for mounting details an...

Страница 8: ...c 150 min 6 x M10 threaded holes for M10 drop rods IMPORTANT Use all 6 drop rod holes 3 Holes x 20mm Water Connections Rp1 56 70 1in BSP Internal Emergency Condensate Connection at rear of plastic end...

Страница 9: ...ure plus two in the centre and pull the panel out forwards Chilled Water Pipework Left hand side of unit This should ideally be carried out before connection of any electrical and controls cables The...

Страница 10: ...nal pipework if used must be weather wrapped or installed in suitable trunking Condensate Disposal System Right hand side of unit As explained in Section Design Information Page 3 the dry cooling unit...

Страница 11: ...l accept a 10mm diameter condensate sensor Different size grommets can be fitted to suit other condensate sensors or if the grommet is removed a larger condensate sensor can be located in the 13mm dia...

Страница 12: ...Power Input kW rating of water pump installed 2 7A for cooling unit Rated Current Amps of water pump installed max 2A IMPORTANT Please note that the water pump is supplied and fitted by the installer...

Страница 13: ...TB62 5 6 A B Brown Blue PUHZ HW140VHA2 YHA2 Unit Error Signal Volt Free Output FAN MOTORS SIEMENS RDG400 MANUAL ROOM CONTROL CN20 RED Link Fitted L2 L1 N E CNS2 Mitsubishi sensor fitted in pocket of f...

Страница 14: ...onnection 8 Mitsubishi Electric heat pump system Error Signal volt free contacts rated 1A max Error Closed 9 Terminal on Dry Cooling Unit Optional Room Over Temperature Alarm Volt Free contacts rated...

Страница 15: ...picture NB For clarity the site wiring to terminals 6 to 12 for the optional items Remote ON OFF Mitsubishi Error Signal Room Over Temperature Alarm is not shown in this picture Please note All the pa...

Страница 16: ...nstallation debris is removed see BSRIA AG 1 2001 1 Check that the chilled water system has been filled and the correct concentration of inhibitor has been added If necessary check that the system has...

Страница 17: ...there is site wiring between terminals 4 5 in the dry cooling unit and terminals M B1 in the Siemens RDG400 manual room control the room air temperature will be measured using the black return air tem...

Страница 18: ...k there is no mechanical noise coming from the fans and that both fans work If there is a Remote On Off wired into terminals 6 7 on the dry cooling unit switch this On Check that the LCD display scree...

Страница 19: ...condensate pump is being used ensure this is operating correctly and if possible simulate a pump alarm fault condition to check that the alarm will function Some condensate pumps may require distilled...

Страница 20: ...ill then flash this target temperature 5 times and go back to showing the air temperature If the target temperature is lower than the air temperature the outdoor unit and the water pump s will start t...

Страница 21: ...Always disconnect and isolate the mains electricity supply both at the local electrical supply to the Thermoscreens Dry Cooling Unit and at the Mitsubishi Electric Outdoor Unit before servicing maint...

Страница 22: ...ituation It may be that there has been a failure in the air conditioning on site or environmental conditions in the server room have gone above 24 C 40 Rh due to some other circumstance e g doors left...

Страница 23: ...ns dry cooling unit using a damp cloth Do not use scouring cream products Visually inspect the pipe work system for water leaks and repair as necessary Check the condition of the pipework insulation a...

Страница 24: ...temperature down NB Dry cooling unit will only cool if room air temperature is above the target temperature Room temperature is low Air Inlet Sensor is measuring low air temperature so target tempera...

Страница 25: ...re they are correct although Thermoscreens Ltd disclaims all liability for damage resulting from any inaccuracies and or deficiencies in this documentation Thermoscreens Ltd retain the right to change...

Страница 26: ...Series Type PHV2000 NT used with Mitsubishi Electric PUHZ HW140VHA YHA VRF PHV2000 NT used with Mitsubishi Electric PWFY P200VM E AU Relevant EC Council the Machinery Directive 2006 42 EC the Low Vol...

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