Micro Matic MMPP4302-PKG - INSTALLATION STEPS (General Models); MAINTENANCE

MICROMATIC.COM | 866-327-4159 POWER PACK SERVICE MANUAL | 9
INSTALLATION STEPS
(MMPP4301, MMPP4301-WC, MMPP4301-PKG, MMPP4301-PKG-WC, MMPP4302, MMPP4302-WC, MMPP4302-PKG,
MMPP4302-PKG-WC, MMPP4303-PKG, MMPP4303-PKG-WC, MMPP4303-PKG-3, MMPP4305-PKG, MMPP4305-PKG-WC,
MMPP4305-PKG-3, MMPP4305-PKG-WC3, MMPP4307-PKG, MMPP4307-PKG-WC, MMPP4307-PKG-3,
MMPP4307-PKG-3-WC, MMPP4307-PKG-4, MMPP4307-PKG-4-WC)
(Assure tower connections are complete.)
1. Remove the refrigeration deck from the unit.
2. Inspect the glycol tank for any debris.
3. Connect one of the glycol lines from the trunk line to the pump outlet. Insulate any exposed tubing.
NOTE: In units with more than one pump, connect a glycol line to each pump outlet.
4. Connect the second glycol line from each circuit to the glycol bath inlet.
5. Fill the glycol bath with Micro Matic Polar Flo
®
glycol solution:
• MMPP4301, MMPP4301-WC, MMPP4301-PKG, MMPP4301-PKG-WC, MMPP4302, MMPP4302-WC,
MMPP4302-PKG, MMPP4302-PKG-WC, MMPP4303-PKG, MMPP4303-PKG-WC, MMPP4303-PKG-3.
Mix: 2 ½ parts water to 1 part glycol.
• MMPP4305-PKG, MMPP4305-PKG-WC, MMPP4305-PKG-3, MMPP4305-PKG-WC3, MMPP4307-PKG,
MMPP4307-PKG-3, MMPP4307-PKG-4)
Mix: 7 parts distilled water to 5 parts glycol.
Fillbathtothelevelofthelllineontheglycollevelindicator.
6. Replace the refrigeration deck.
 7. Connectelectricaloutletscapableofhandlingtherequiredvoltageloads.Thisshouldbecarriedoutby 
suitably trained personnel and must comply with all state and national codes.
 8. Glycollevelwillfallasglycolispumpedthroughtheglycollines.Continuetollthebathtothefulllevelonthe
glycol level indicator. Series MMPP4305 and MMPP4307 pumps must be circulating before compressor is started.
9. Inspect for any leaks.
10. Temperature of the glycol will fall slowly to 29° F.
NOTE: To adjust the glycol temperature, please see Adjusting Electronic Thermostat.
MAINTENANCE
1. Inspect the unit monthly to ensure that the glycol level is maintained to the full level.
2. If the level is low replace with a Micro Matic Polar Flo
®
glycol solution:
• MMPP4301-EP, MMPP4301, MMPP4301-WC, MMPP4301-PKG, MMPP4301-PKG-WC, MMPP4302, MMPP4302-WC,
MMPP4302-PKG, MMPP4302-PKG-WC, MMPP4303-PKG, MMPP4303-PKG-WC, MMPP4303-PKG-3.
Mix: 2 ½ parts water to 1 part glycol.
• MMPP4305-PKG, MMPP4305-PKG-WC, MMPP4305-PKG-3, MMPP4305-PKG-WC3, MMPP4307-PKG,
MMPP4307-PKG-WC, MMPP4307-PKG-3, MMPP4307-PKG-3-WC, MMPP4307-PKG-4, MMPP4307-PKG-4-WC.
Mix: 7 parts distilled water to 5 parts glycol.