Table Of Contents; Safety Precautions - Mitsubishi Electric PAC-YT34STA Instruction Book

1. Safety Precautions ··················································································································· 2
2. Names and functions of each part ···························································································· 4
2-1. Appearance·················································································································································4
2-2. Display sections ··········································································································································5
2-3. Operation section········································································································································6
2-4. Screen configuration ···································································································································7
3. Outline of schedule setting and operation················································································· 8
3-1. Outline of setting ·········································································································································8
3-2. Schedule operation ·····································································································································9
4. Operation methods················································································································· 10
4-1. Normal screen (COLLECTIVE/GROUP STATUS DISPLAY SCREEN)···················································10
4-1-1. Group selection operation ···············································································································10
4-1-2. ON/OFF operations ························································································································· 11
4-1-3. Stopping the schedule operation collectively for all groups ···························································· 11
4-1-4. Display ············································································································································· 11
4-2. PROGRAM MONITOR screen ················································································································· 11
4-3. TIME/DAY SETTING screen ····················································································································12
4-4. PROGRAM SETTING screen···················································································································12
4-4-1. Setting the program ·························································································································13
4-4-2. Setting the operation details ············································································································13
4-4-3. Deleting an operation setting···········································································································14
4-4-4. Copying the details of a pattern setting ···························································································14
4-5. WEEKLY PROGRAM SETTING screen···································································································14
4-5-1. Setting the operation pattern ···········································································································15
5. Troubleshooting······················································································································ 16
5-1. When "COLLECTIVE ON/OFF LAMP" and "ERROR CODE" are flickering············································16
5-2. When only the "Error Code" is flickering···································································································16
6. External input and output functions························································································· 17
6-1. External input ············································································································································17
6-1-1. Emergency stop input mode············································································································17
6-1-2. ON/OFF level signal input mode ·····································································································17
6-1-3. ON/OFF, operation prohibit/permit pulse input mode······································································18
6-2. External output ··········································································································································18
7. Initial settings ························································································································· 19
7-1. When this controller is master system······································································································19
7-1-1. Setting the group ·····························································································································21
7-1-2. Setting the interlocked units ············································································································24
7-1-3. Collective deletion····························································································································28
8. Setting the functions··············································································································· 28
8-1. Using with master system controller·········································································································28
8-2. Using the external input/output function ···································································································29
8-3. Disabling the local remote control's operations from this controller ·························································29
8-4. When local remote controller and system controller are prohibited ·························································29
8-5. Changing set temperature display to "Fahrenheit display" ······································································29
9. System limits ·························································································································· 30
10. Specifications ························································································································· 31
10-1. Product functions······································································································································31
10-2. Main specifications ···································································································································32

1. Safety Precautions

Always read these "Safety Precautions" before starting, and perform the installation work
correctly.
The dangers and degree that could occur if handling is mistaken are ranked with the following
symbols.
WARNING When fatalities or serious injuries could result if handling is mistaken.
CAUTION When personal injury, or damage to house or assets could result if handling is mistaken.
After reading this manual store it in a safe place together with the installation manual for future
reference.
When changing users, always give this manual and the installation manual to the new user.
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