background image

REPLACEMENT PARTS

When writing to McQUAY  for service or replacement of installation of the unit and date of failure, along
parts, refer to the model number and serial number of with an explanation of the malfunctions and a descrip-
the unit as stamped on the serial plate, attached to the tion of the replacement parts required. Refer to Re-
unit. If replacement parts are required, mention the date placement Parts List No. IM 115RP.

NOTES

Page 30

Содержание Seasonpak PAB Series

Страница 1: ...15 AUGUST 1967 FORM 206034Y INSTALLATION AND MAINTENANCE DATA MODEL PAB AIR COOLED WATER CHILLER 7 1 2 THRU 60 TONS INC 13600 INDUSTRIAL PARK BLVD P O BOX 1551 MINNEAPOLIS MINNESOTA 55440 PHONE 377 97...

Страница 2: ......

Страница 3: ...Lability not strictly in accordan further warranty is h this policy except to the extent that such in writing and signed by an official of Mc Quay for additional consideration n in accordance with an...

Страница 4: ...charge for the job requirements see Table 6 Pages 8 and 9 Charge for specific units can be obtained f rom the nameplatc The McQUAY line of air cooled water chillers is de signed for outdoor applicatio...

Страница 5: ......

Страница 6: ......

Страница 7: ......

Страница 8: ......

Страница 9: ......

Страница 10: ......

Страница 11: ...s covering specific rcquircments CRANKCASE HEATERS The compressors are equipped with crankcase heaters Some models have heaters installed externally below the crankcase and others have heaters inserte...

Страница 12: ......

Страница 13: ......

Страница 14: ......

Страница 15: ......

Страница 16: ......

Страница 17: ...Check to see that the water temperature thermo stat is installed in the entering water line The L thermostat well is to be full of heat conducting compound and the bulb must be secured with the retain...

Страница 18: ...graph E B Turn pumpdown switches S3 and S4 to auto posi tion Check liquid sight glass ahead of expansion valve for proper refrigerant charge C Observe operation for several minutes noting un usual sou...

Страница 19: ...or at the unit an impedance relay is incorporated in the control circuit Basically this type of control is centered around a relay with a high impedance holding coil connected in series with the basic...

Страница 20: ...low side of the system and its purpose is to shut down the D E compressor at the end of the pumpdown cycle It will open at 35 psig and automatically reset at approximately 60 psig The control can be c...

Страница 21: ...een switches Do NOT make any adjustments other than the dial as this is a preset precision control TO CHANGE THE SET POINT 1 2 3 Loosen the setscrews on the collar below the hex nut see Fig 7 Turn the...

Страница 22: ...checked as follows A Make up a depth gauge for inserting through the adjusting nut opening and long enough to hit the CONTROLS B C D E bottom of the bellows section as indicated in the diagrams A piec...

Страница 23: ......

Страница 24: ...t the nuisance of water dripping from the lines If insulation is not of the self contained vapor barrier type it should be covered with a moisture seal Do not insulate piping until it has been tested...

Страница 25: ...on chamber on the motor end of the compressor Shut off valves E F G VIEW FROM END OF COOLER STRAIGHT PIPE EE D x D x 1 are never installed in these control lines The compressor is pre charged with suf...

Страница 26: ...or of the moisture indicator button is an indication of the dryness of the system and is ex tremely important when the system has been ser v i c e d Immediately after the system h a s been opened for...

Страница 27: ...nto heavy duty steel tube sheets and s c a l e d by a cast steel refrigerant head B The water connection nozzles which enter and leave the shell are on the same side of the unit No special attention i...

Страница 28: ...e s s d D i s c h a r g e s h u t o f f v a l v e p a r t i a l l y d O p e n v a l v e c l o s e d L o w D i s c h a r g e P r e s s u r e a F a u l t y c o n d e n s e r t e m p e r a t u r e r e g...

Страница 29: ...A d j u s t t h e r m a l e x p a n s i o n v a l v e C o m p r e s s o r l o s e s o i l a L o c k o f r e f r i g e r a n t b E x c e s s i v e c o m p r e s s i o n r i n g b l o w b y a C h e c k...

Страница 30: ...ng parts refer to the model number and serial number of with an explanation of the malfunctions and a descrip the unit as stamped on the serial plate attached to the tion of the replacement parts requ...

Отзывы: