2
The drawings in this document are for illustrative purposes only and is not part of any offer for sale or contract.
CONTENTS
1 - INTRODUCTION .......................................................................................................................................................................4
1.1 - Installation safety considerations ...............................................................................................................................................4
1.2 - Equipment and components under pressure ..............................................................................................................................4
1.3 - Maintenance safety considerations ............................................................................................................................................5
1.4 - Repair safety considerations ......................................................................................................................................................5
2 - PRELIMINARY CHECKS ........................................................................................................................................................7
2.1 - Check equipment received .........................................................................................................................................................7
2.2 - Moving and siting the unit .........................................................................................................................................................7
3 - DIMENSIONS/CLEARANCES.................................................................................................................................................9
4 - PHYSICAL DATA ....................................................................................................................................................................10
5 - ELECTRICAL DATA ..............................................................................................................................................................10
6 - APPLICATION DATA.............................................................................................................................................................12
6.1 - Unit operating range ................................................................................................................................................................12
6.2 - Evaporator water flow rates .....................................................................................................................................................12
6.3 - Minimum water flow rate ........................................................................................................................................................12
6.4 - Maximum evaporator water flow rate......................................................................................................................................12
6.5 - Water loop volume...................................................................................................................................................................12
6.6 - 30RY unit operating range at full and part load ......................................................................................................................12
6.7 - Pressure drop in the plate heat exchangers ..............................................................................................................................13
7 - ELECTRICAL CONNECTION..............................................................................................................................................14
7.1 - Power supply ............................................................................................................................................................................15
7.2 - Voltage phase imbalance (%) ...................................................................................................................................................15
8 - RECOMMENDED WIRE SECTIONS...................................................................................................................................15
8.1 - Field control wiring..................................................................................................................................................................15
9 - WATER CONNECTIONS .......................................................................................................................................................16
9.1 - Operating precautions and recommendations ..........................................................................................................................16
9.2 - Hydronic connections ..............................................................................................................................................................17
9.3 - Frost protection ........................................................................................................................................................................17
9.4 - Installation of the accessory condensate recovery pan ............................................................................................................17
10 - NOMINAL SYSTEM WATER FLOW CONTROL ...........................................................................................................19
10.1 - Water flow control procedure ................................................................................................................................................19
10.2 - Pump curve and water flow control as a function of the system pressure drops ...................................................................20
10.3 - Pump pressure/flow rate curves .............................................................................................................................................20
10.4 - Available static system pressure ............................................................................................................................................21
10.5 - Duct connection .....................................................................................................................................................................21
11 - START-UP...............................................................................................................................................................................23
11.1 - Preliminary checks .................................................................................................................................................................23
11.2 - Actual start-up ........................................................................................................................................................................23
11.3 - Operation of two units in master/slave mode.........................................................................................................................23
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