
PRELIMINARY CHECKS
CHILLER-IOM-2004-E
26
PRELIMINARY CHECKS
IMPORTANT
•
Start up and commissioning must be conducted by LENNOX authorized engineer.
•
Never shut off power to the crankcase heaters except for long service operations or seasonal shutdown
Check that all drain and purge plugs are in place and well tightened prior to fill the installation with water
1.
LIMITS
Prior to any operation, please checks the operation limits of the unit given in the «APPENDIX» at the end of the IOM, These tables will
give you all necessary information concerning the operating envelop of the unit.
Please consult the «Risk analysis and hazardous situations according to PED directive» given in the «APPENDIX» at the end of the IOM,
or supplied with the unit.
2.
REFRIGERATION CIRCUIT CHECKS AND RECOMMENDATIONS
In case of split units, check the installation has been made according to the recommendation described § Installation. The unit refrigeration
circuit sketch is given in the «APPENDICES» at the end of the IOM or supplied with the unit.
3.
HYDRAULIC SYSTEM INSTALLATION CHECKS (NEOSYS)
The unit hydraulic sketch is given in the «APPENDIX» at the end of the IOM.
4.
INSTALLATION OF EXTERNAL HYDRAULIC COMPONENTS (FOR HYDROLEAN AND MWC)
Some hydraulic components may be supplied loose by LENNOX:
01
Kit for groove lock Coupling for MWC
05
Paddle Flow Switch
02
Evaporator Water inlet Filter
A
Inlet Outlet water temperature probe
03
Condenser Water inlet Filter
B
Heat exchangers
04
Pressure regulated Water valve (Hydrolean only) Hot water control option
Refer to the “OPTIONS” section for information on connection and installation
MWC units are delivered with Victaulic connection. Hydrolean units are delivered with Threaded male connection
The components are located inside the units or in a separate box and must be installed by a qualified engineer. Note: In case
of plate heat exchangers it is mandatory that a filter is installed at exchanger unit entrance.
These filters must remove all particles with a diameter greater than 1 mm.
The flow switch on condenser line is not present on MWC units.
!
!
STANDARD FEATURES
E
V
AP
OR
A
T
OR
COND
E
NS
E
R
SUPPLIED LOOSE
OPTIONS
Electrical connection to main electrical cabinet
Electrical connection to main electrical cabinet