Heatcraft Refrigeration Products Unit Coolers H-IM-UC manual

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Table of contents for the manual

  • Page 1

    H-IM-UC August 2008 P ar t No . 25008201 Unit C oolers Installation and Opera tions Manual T able of C ontents General Safety Information .................................................................. 2 Inspection ................................................................................................ 2 W arranty Statemen t ............[...]

  • Page 2

    2 Installation and Operations Manual General Safety Information 1. Installation and maintenance to be performed only by qualied personnel who are familiar with this type of equipment 2. Some units are pressurized with dry air or iner t gas. All units must be evacuated bef ore charging the sy stem with refrigerant. W ARNING: Refrigerant can be ha[...]

  • Page 3

    3 Unit Coolers One evaporator Figur e 2. Low P role Unit Coolers Recommended Unit C o oler Placemen t Some general rules for evaporat or placement which must be follow ed are: 1. The air pattern must cov er the entire r oom. 2. NEVER locate evaporators o ver doors. 3. Location of aisles , racks, etc . must be known. 4. L oc ati on r el ati ve to[...]

  • Page 4

    4 Installation and Operations Manual the area above the unit cooler must be sealed or exposed in such a way to facilitate hand cleaning without the use of tools. When lagging or bolting the unit ush to the ceiling, seal the joint bet ween the top and the cei ling with an NSF listed sealant and ends of open hange r channel s must be sealed to pre[...]

  • Page 5

    5 Unit Coolers Condensa te Drain Lines Eith er co pper or steel drai n lines shoul d be used and prop erly prot ecte d from freezing. In running drain lines, provide a minimum 1/4 inch per foot pitch for pr oper drainage. Drain lines should be at least as large as the evaporator drain connection. All plumbing connections should be made in accordanc[...]

  • Page 6

    6 Installation and Operations Manual Operational Check Out After the system has been charged and has operated for at least two hours at normal operating conditions without an y indication of malfunction, it should be allowed to operate overnight on automatic contr ols. Then a thorough recheck of the evaporator operation should be made as follows: ([...]

  • Page 7

    7 Unit Coolers T able 1. Expansion V alve Selection For 100# Head P ressure V alve BTUH at about 10° T .D. R-507/R404A R-507/R404A R-22 R-22 -20 ˚ F/-29 ˚ C Evap . +25 ˚ F/-4 ˚ C Evap . -20 ˚ F/-29 ˚ C Evap . +25 ˚ F/-4 ˚ C Evap . Sporlan AL C O Sporlan AL CO Sporlan AL CO Sporlan AL CO 3,000-5,000 EGSE 1/2 ZP HFESC-1/2-RZ EGSE 1/2 C HFESC[...]

  • Page 8

    Since product impro vement is a continuing eort, we reserve the right to make changes in specications without notic e. C L I M A T E C O N T R O L Commercial Refrigeration Parts The name behind the brands you trust. ™ Commercial Refrigeration P ar ts InterLink is your link to a complete line of dependable and cer tied commercial refriger[...]