User manual TOSHIBA MCY-MAP0601HT QUICK REFERENCE

[. . . ] FILE NO : A06-007 Quick reference R410A 01 Refrigerant Piping Allowable length/height difference of refrigerant piping Outdoor unit Main pipe L1 Branching pipe L2 1st branching section Height difference between indoor and outdoor units H1 Branch header a b c d Branching pipe L3 Indoor unit Equivalent length corresponded to farthest piping L Equivalent length corresponded to farthest piping after 1st branching Li Height difference between indoor units H2 L4 e Y-shape branch joint f g A *1 Allowable value Total extension of pipe (Liquid pipe, real length) Furthest piping length L (*1) Piping Length Real length Equivalent length 180 m 100 m 125 m 65 m 35 m 15 m 30 m 20 m 15 m Piping section L1 + L2 + L3 + L4 + a + b + c + d + e + f + g L1 + L3 + L4 + g Max. equivalent length of main pipe Equivalent length of furthest piping from 1st branching Li (*1) Max. real length of indoor unit connecting pipe Height between indoor and outdoor units H1 Upper outdoor unit Lower outdoor unit L1 L3 + L4 + g a, b, c, d, e, f. g ------ ------ ------ Height Difference Height between indoor units H2 *1 : Furthest indoor unit from 1 branch to be named "A". st 02 Allowable length/height difference of refrigerant piping for quiet places (with PMV Kit) Outdoor unit Main pipe L1 Branching pipe L2 1st branching section Branch header a b c d PMV Kit Height difference between indoor and outdoor units H1 h Branching pipe L3 i j k Indoor unit Height difference between indoor unit and PMV Kit H2 * * Between highest unit and lower units. [. . . ] (15 to 18V usually) Countermeasures Remote controller status No response No display on remote controller (No line is output. ) None The power is not turned on. (Unit which is not displayed on remote controller) Remote controller is not connected with cable. (Unit which is not displayed on remote controller) Miscabling of remote controller (Unit which is not displayed on remote controller) Remote controller communication circuit error (Unit which is not displayed on remote controller) If 230V is incorrectly applied to the remote controller terminal, the remote controller communication circuit fails. 4 In check for No. of connected Indoor units after address setup, diminished No. (There are outdoor/indoor units which do not operate in a test operation. ) Status Cause Miswiring of communication line unconnected cable. (Address setup operation has finished without recognition of miswired follower unit. ) Miswiring of communication line between indoor units or unconnected cable. (Address setup operation has finished without recognition of miswired indoor unit. ) Remote controller is not connected with wire. Miscabling of remote controller Remote controller communication circuit error If 230V is incorrectly applied to the remote controller terminal, the remote controller communication circuit fails. Countermeasures After modification of wiring, set up address again and check No. After modification of wiring, set up address again and check No. of the connected indoor units. Number of connected is short. Number of connected indoor units is short. Number of outdoor units connected to group is short in group operation from remote controller. Using the main remote controller connected to a group, start a test operation, specify the unit which does not operate (Unit unconnected to group), and then check wiring. Using the main remote controller connected to a group, start a test operation, specify the unit which does not operate (Unit unconnected to group). Remove Fasten receptacle connected to remote controller terminals (A/B), and check the voltage. If voltage is not applied, replace P board. (15 to18V in normal time) 17 Monitor Function of Remote Controller Switch When using a remote controller with the model name RBC-ATM21E, the following monitor functions can be used. Calling of display screen [Contents] The temperature or the operation status of the remote controller, indoor unit, or each sensor of the outdoor unit can be known by calling up the service monitor mode from the remote controller. [Procedure] 1 2 3 4 Push CL + TEST buttons simultaneously for 4 seconds or more to call up the service monitor mode. The service monitor goes on, and temperature of the item code 00 is firstly displayed. Push the temperature setup / buttons to select the item number (Item code) to be monitored. For displayed codes, refer to the table below. Push UNIT button to change the item to one to be monitored. [. . . ] Check connector CN30 Check connector CN31 [Close fully] Short-circuit CN31 on the interface P board of the . C. outdoor unit. [Clear] After 2 minutes, the opening returns to the normal operation. Be sure to remove the short circuit after confirmation. 10 Solenoid Valve Forced Open/Close Function in Outdoor Unit This function is provided to forcibly open/close each solenoid valve mounted in the outdoor unit by use of the switches provided on the outdoor unit interface P board. This function confirms the operation of each solenoid . C. [. . . ]