Hussmann KRACK MK Series - Default Chapter; Table of Contents

MK/MV – Medium Profile Series Unit Coolers (E206993_M)
1
TABLE&OF&CONTENTS!
1 RECEIPT OF EQUIPMENT ____________________________________________________________ 6
1.1 INSPECTION __________________________________________________________________ 6
1.2 LOSS
OF GAS HOLDING CHARGE ___________________________________________________ 6
2 UNIT INFORMATION AND DIMENSIONS _______________________________________________ 6
2.1 MODELS COVERED _____________________________________________________________ 6
2.2 UNIT
DIMENSIONS _____________________________________________________________ 7
3 UNIT LOCATION AND MOUNTING ____________________________________________________ 7
3.1 UNIT
LOCATION _______________________________________________________________ 7
3.2 MOUNTING ___________________________________________________________________ 7
4 PIPING INSTALLATION _____________________________________________________________ 8
4.1 DRAIN
LINE ___________________________________________________________________ 8
4.2 REFRIGERATION
PIPING _________________________________________________________ 8
4.3 EVACUATION
AND LEAK TEST ____________________________________________________ 10
4.4 MK
HOT GAS DEFROST PIPING ___________________________________________________ 10
4.5 REFRIGERANT
DISTRIBUTOR NOZZLES _____________________________________________ 12
4.6 EXPANSION
VALVE ____________________________________________________________ 17
5 ELECTRICAL _____________________________________________________________________ 21
5.1 FIELD WIRING ________________________________________________________________ 21
5.2 ELECTRICAL
DATA _____________________________________________________________ 21
6 AIR DEFROST SEQUENCE OF OPERATION _____________________________________________ 23
6.1 SEQUENCE OF OPERATION ______________________________________________________ 23
7 ELECTRIC DEFROST SEQUENCE OF OPERATION _________________________________________ 23
7.1 SEQUENCE OF OPERATION ______________________________________________________ 23
7.1.1 STEP A: NORMAL REFRIGERATION CYCLE _______________________________________ 23
7.1.2 STEP B: DEFROST CYCLE ____________________________________________________ 24
8 GAS DEFROST SEQUENCE OF OPERATION _____________________________________________ 29
8.1 HGE/HGG
3 PIPE HOT GAS DEFROST ______________________________________________ 29
8.2 SEQUENCE
OF OPERATION ______________________________________________________ 29
8.3 KGE/KGG
REVERSE CYCLE 2 PIPE KOOL GAS DEFROST _________________________________ 30
8.4 SEQUENCE
OF OPERATION ______________________________________________________ 30
9 UNITS WITH KE2 EVAP OEM CONTROLLER ____________________________________________ 32
9.1 SEQUENCE OF OPERATION ______________________________________________________ 32
9.2 DEFROST
OPERATION __________________________________________________________ 33
9.2.1 PUMP DOWN SETTINGS ____________________________________________________ 33
9.2.2 DEFROST SETTINGS ________________________________________________________ 34
9.2.3 DRAIN SETTINGS __________________________________________________________ 34
9.2.4 FAN DELAY SETTINGS ______________________________________________________ 34