Yazaki AROACE CH-MG150, Installation Instructions Manual

Page 1: ...combustion blower and proportional firing control CONTENTS GENERAL Page GENERAL 2 MODEL DESIGNATION 2 STANDARD SPECIFICATIONS 3 EQUIPMENT DIMENSIONS 4 INTERNAL WIRING DIAGRAM 6 INSTALLATION RECEIVING 9 RIGGING 10 CENTER OF GRAVITY 11 INSTALLATION CLEARANCES 12 LOCATION 13 FOUNDATION 13 Page LEVELING 14 COMBUSTION AIR SUPPLY 14 VENTING 15 PIPING 17 TYPICAL SYSTEM DESIGN 18 CHILLED HOT WATER PIPING ...

Page 2: ...aki Authorized Service Provider ASP must check the installation and supervise or conduct the initial startup and operation of the unit CAUTION THE YAZAKI WARRANTY WILL BE VOIDED IF THE FOLLOWING RESTRICTIONS ARE NOT OBSERVED 1 DO NOT OPEN ANY VACUUM VALVES WITHOUT A PROPER EVACUATION ASSEMBLY ATTACHED TO THEM AS SUCH ACTION WILL RESULT IN LOSS OF VACUUM AND INTRODUCTION OF GASES TO THE INTERIOR OF...

Page 3: ...ircuit Amps Amps 24 4 29 0 Maximum Overcurrent Protection Amps 30 35 Capacity Control Cooling 30 100 Proportional Heating 30 100 Proportional Combustion Burner Type Low NOx Forced Draft Proportional Flame Detection Flame Rod Ignition Type Pilot w Intermittent Spark Sound dB A 74 Dimension Width Inches mm 77 0 1957 80 9 2057 Depth Inches mm 144 2 3665 147 0 3735 Height without vent cap Inches mm 88...

Page 4: ...4 EQUIPMENT DIMENSIONS Figure 1 MG150 Dimensions ...

Page 5: ...5 EQUIPMENT DIMENSIONS Figure 2 MG200 Dimensions ...

Page 6: ...6 INTERNAL WIRING DIAGRAM ...

Page 7: ...7 ...

Page 8: ...8 Table 2 Internal Wiring Diagram Legend KRCH relay has been replaced by the KCH relay ...

Page 9: ...iler is preferred for easiest delivery but is not always an option Remember to properly plan the route to the installation site Also keep in mind when choosing the site the unit will someday have to be replaced so be mindful of permanent and semi permanent barriers The unit typically must be pulled out of a container or trailer and often must be pulled into position on site The frame of the unit i...

Page 10: ...expose the lugs for rigging Attach shackle bolts to these lugs Bring the four individual rigging cables together at a point high enough that the angle between the rigging line and the top of the unit is no less than 60 as shown in the drawings below Once the unit is in final position locate the four top panel blanks which are included in the accessories box Install these blanks in order to keep th...

Page 11: ... kg Dry lbs kg Operating lbs kg Front Left 1 528 693 1 688 766 1 831 831 2 074 941 Front Right 1 448 657 1 600 726 1 735 797 1 965 892 Middle Left 3 353 1 521 3 704 1 681 3 777 1 714 4 279 1 941 Middle Right 2 698 1 224 2 981 1 353 3 103 1 408 3 515 1 595 Back Left 1 746 792 1 929 875 1 985 901 2 249 1 021 Back Right 1 627 738 1 797 816 1 869 848 2 118 961 Total 12 400 5 625 13 700 6 215 14 300 6 ...

Page 12: ...12 INSTALLATION CLEARANCES Figure 7 Installation and Service Clearances ...

Page 13: ... accordance with national and local codes The chiller heater must be mounted on a level non combustible foundation capable of supporting the considerable weight of the machinery This is particularly important for rooftop installations Always make certain the structure can support not only the chiller heater but also the pumps piping cooling towers etc as may be required The rooftop area should be ...

Page 14: ... the provision of sufficient free air for combustion and venting The rules for such are found in the National Fuel Gas Code NFPA Standard 54 The code supersedes anything found in print here or in any other Yazaki documentation What has been provided here are only guidelines to help toward proper installation of the unit When installed outdoors no special provisions are usually needed in regard to ...

Page 15: ...ied Figure 12 Factory Vent Cap In cases where an extended vent is necessary follow the normal venting rules Venting the flue products safely is a key concern when installing any gas fired appliance and Yazaki chiller heaters are no exception As with combustion air rules for the proper venting of gas fired appliances are also covered in the National Fuel Gas Code NFPA Section 54 All MG Series chill...

Page 16: ...ed separately if possible If the vent is taller than 7 2 2m a barometric damper also known as a draft regulator may be required The range of draft pressure allowed at the vent connection on the chiller heater is 0 0 wc to 0 05 wc If the draft pressure is outside of this range a barometric damper should be used to correct this in order to prevent sooting and possible damage to the HGE 9 Always meas...

Page 17: ... independently of the unit so as to avoid undue strain on the unit piping connections Maximum allowable pressure in any fluid circuit is 113 8 PSI 785 kPa Piping rules and conventions used with Yazaki chiller heaters are exactly the same as used with any other type of chiller therefore this installation manual will not delve deeply into piping design CAUTION 1 Do not exceed 113 8 PSI 785 kPa in ei...

Page 18: ...18 TYPICAL SYSTEM DESIGN Figure 18 Example of Single Module Installation MULTIPLE MODULES Figure 19 Example of Multiple Module Installation ...

Page 19: ...t any point in time Such cases will result in the generation of error code E043 This error code will automatically reset itself once the cooling water warms above 48 2 F 9 C To prevent a hot slug of water from potentially damaging the cooling tower a Cooling Water Control Valve CWV should be used and set so that it bypasses into the sump of the cooling tower for the first 2 minutes of the first co...

Page 20: ...Many anti freeze methods are available including heat tape but the most common method in the USA is the use of glycol in the fluid loop Glycol may be permitted for use in Yazaki chiller heaters with certain restrictions and observations 1 In the chilled hot water circuit it should only be used during heating operation It is not recommended for use in the chilled water circuit in cooling mode as th...

Page 21: ...tiple gas fired appliances exist on the supply lines This optional gas meter allows for gas volume determination without the need to isolate other appliances during burner setup Figure 22 Installation of an appliance regulator is also recommended especially when multiple gas fired appliances exist on the supply lines This optional appliance regulator should be sized to handle the 100 fire rate gas...

Page 22: ... middle times Actual Specific Gravity Multiplier right Table 4 Gas Piping ELECTRICAL Table 5 Figure 23 Junction Box Pressure Drop Multiplier 0 1 0 577 0 2 0 815 0 3 1 0 4 1 16 0 6 1 42 0 8 1 64 1 1 83 2 2 58 3 3 16 4 3 65 6 4 47 8 5 15 Specific Gravity Multiplier 0 5 1 1 0 6 1 0 7 0 926 0 8 0 867 0 9 0 817 1 0 775 ...

Page 23: ...A through I in the upper right section of the junction box are intended for use with the optional Yazaki Remote Control Panel However these terminals can also be used to interface with Building Management Systems When interfacing with a BMS it is recommended that two SPDT relays be used and controlled by the BMS Each relay should have the E terminal which supplies a DC voltage signal of the juncti...

Page 24: ...Terminal 4 should receive the return signal from the cooling water pump overload auxiliary contacts Terminal 5 should receive the return signal from the cooling tower fan overload auxiliary contacts If the return signal is not sensed the unit will immediately generate an error code E005 E006 and or E007 TYPICAL FIELD WIRING DIAGRAM ...

Page 25: ...25 Figure 25 Optional Remote Control Pad ...

Page 26: ...s CaCO3 ppm 50 150 50 Ionic silica SiO2 ppm 30 50 30 Reference Total iron Fe ppm 1 0 1 0 0 3 Copper Cu ppm 1 0 0 3 0 1 Sulfide ion S 2 ppm ND ND ND Ammonium ion NH4 ppm 1 0 1 0 0 1 Residual chlorine Cl ppm 0 3 0 3 0 3 Free carbon dioxide CO2 ppm 4 0 4 0 4 0 Ryzner stability index 6 0 7 0 NOTES 1 ND Not Detectable 2 Maximum total hardness of make up water shall not exceed 70 ppm when bleed off is t...

Page 27: ... PIPING 1 Natural Gas supply is available to unit between 7 wc and 10 5 wc 2 Gas piping installation completed 3 Gas cock and sediment trap installed 4 Appliance regulator installed at each chiller heater if required 5 Gas pipe leak tested and purged D VENTING 1 Factory provided vent cap installed outdoor installation 2 Barometric damper and Type B vent extension installed on each chiller heater o...

Page 28: ...MS INC 701 E PLANO PKWY SUITE 305 PLANO TEXAS 75074 6700 Phone 469 229 5443 Fax 469 229 5448 Email yazaki yazakienergy com Web www yazakienergy com LISTED This symbol on the product s nameplate means it is listed by UNDERWRITERS LABORATORIES INC Yazaki reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations MGUL II 1D1 0914...