Mitsubishi Electric CITY MULTI Series Installation Manual
Air-conditioners for building application, indoor unit, main/sub bc controller
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Also See for CITY MULTI Series:
- Installation manual (400 pages) ,
- Technical & service manual (45 pages) ,
- Technical & service manual (26 pages)
Table of Contents
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Air-Conditioners For Building Application
INDOOR UNIT
CMB-P-NU-G1
CMB-P-NU-GA1 (MAIN BC CONTROLLER)
CMB-P-NU-GB1 (SUB BC CONTROLLER)
CMB-P-NU-HA1 (MAIN BC CONTROLLER)
CMB-P-NU-HB1 (SUB BC CONTROLLER)
INSTALLATION MANUAL
For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit.
MANUEL D'INSTALLATION
Veuillez lire le manuel d'installation en entier avant d'installer ce climatiseur pour éviter tout accident et vous assurer d'une utilisation correcte.
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Table of Contents
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Summary of Contents for Mitsubishi Electric CITY MULTI Series
- Page 1 Air-Conditioners For Building Application INDOOR UNIT CMB-P-NU-G1 CMB-P-NU-GA1 (MAIN BC CONTROLLER) CMB-P-NU-GB1 (SUB BC CONTROLLER) CMB-P-NU-HA1 (MAIN BC CONTROLLER) CMB-P-NU-HB1 (SUB BC CONTROLLER) INSTALLATION MANUAL For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit. MANUEL D’INSTALLATION Veuillez lire le manuel d’installation en entier avant d’installer ce climatiseur pour éviter tout accident et vous assurer d’une utilisation correcte.
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Page 2: Table Of Contents
• Always use accessories specified by Mitsubishi Electric. deteriorate. - Ask an authorized technician to install the accessories. Improper installa- - R410A is a high-pressure refrigerant and can cause the existing piping to tion by the user may result in water leakage, electric shock, or fire. -
Page 3: Before Installation
1.4. Before installation (relocation) - elec- • Store the piping to be used during installation indoors and keep both ends of the piping sealed until just before brazing. (Store elbows and trical work other joints in a plastic bag.) - If dust, dirt, or water enters the refrigerant cycle, deterioration of the oil and compressor failure may result. -
Page 4: Selecting An Installation Site
3. Selecting an installation site 3.1. About the product 3.3. Securing installation and service space • This unit uses R410A-type refrigerant. • Piping for systems using R410A may be different from that for systems us- ing conventional refrigerant because the design pressure in systems using 1. -
Page 5: Checking The Installation Site
3.4. Checking the installation site Distance between BC controller and farthest indoor unit Check that the difference of elevation between indoor and outdoor units and the 70 [229] length of refrigerant piping are within the following limitations. 60 [196] 1. CMB-P104, 105, 106, 108, 1010, 1013, 1016G (In the case the outdoor unit is 12.5-hp (P120 model) or less, and 16 or fewer ports are used.) 50 [164] [Fig. - Page 6 Notes: Distance between MAIN BC controller and farthest indoor unit A system that has more than 16 branching points requires 2 to 3 BC con- trollers (main and sub) and 3 pipes to connect the main and the sub BC 70 [229] controllers.
- Page 7 [Fig. 3.4.3] Restrictions on piping length PURY-P72/96THMU-A, PURY-P72/96YHMU-A PURY-P216/240TSHMU-A, PURY-P216/240YSHMU-A PURY-P72/96TJMU-A, PURY-P72/96YJMU-A PURY-P216/240TSJMU-A, PURY-P216/240YSJMU-A 1000 [3280] 1000 [3280] 900 [2952] 900 [2952] 800 [2624] 800 [2624] 700 [2296] 700 [2296] 600 [1968] 600 [1968] 500 [1640] 500 [1640] 400 [1312] 400 [1312] 300 [984] 300 [984]...
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Page 8: Installing Bc Controller
4. Installing BC controller 4.1. Installing BC controllers Be sure to install the BC controllers level. Installing obliquely may cause a risk of drain leakage. Use a level to check the unit’s level. If it is oblique, loosen the fixing nut and make an adjustment. Installing hanging bolts Install locally procured hanging bolts (threaded rod) following the procedure Caution:... -
Page 9: Connecting Refrigerant Pipes
5.2. Connecting refrigerant pipes Warning: When installing and moving the unit, do not charge it with refrigerant other 1. Connect the liquid and gas pipes of each indoor unit to the same (correct) than the refrigerant (R410A) specified on the unit. end connection numbers as indicated on the indoor unit flare connection sec- - Mixing of a different refrigerant, air, etc. -
Page 10: Refrigerant Piping Work
1. Size of BC controller’s end connection piping [Fig. 5.2.2] BC CONTROLLER/MAIN BC CONTROLLER SUB BC CONTROLLER High pressure Low pressure Total capacity of High pressure Low pressure (gas) Liquid side Unit model Model name Model name side (mm [in]) side (mm [in]) indoor units (gas) side (mm [in]) -
Page 11: Insulating Refrigerant Pipes
Caution: [Fig. 5.5.1] (Unit: mm [in]) Cut the tip of the indoor unit piping, remove the gas, and then remove the brazed cap. [Fig. 5.3.1] VP-25 A Cut here B Remove brazed cap A: 250 [9-27/32] B: 1500-2000 [59-1/16-78-3/4] 5.4. Insulating refrigerant pipes A Downward pitch of more than 1/100 B Insulating material Be sure to wind heat-resisting polyethylene form of more than 20 mm [13/16... -
Page 12: Setting Addresses And Operating Units
7. Setting addresses and operating units The address switch of each BC controller is set to “000” when shipped from the factory. • Set the address switch to 1 + the address of the outdoor unit. The BC controller address should generally be set to 1 + the address of the outdoor unit. However, if this would result in it having the same address as another outdoor unit, set the address between 51 and 100, making sure that it is different from the address of other controllers. - Page 13 This product is designed and intended for use in the residential, commercial and light-industrial environment. Please be sure to put the contact address/telephone number on this manual before handing it to the customer. HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN WT07612X01...