PIONEER RYB/RB Series Slim Duct Concealed Air Handlers Installation Guide

Disassembly Guide for RYB/RB Slim-Duct Concealed Air Handler
Applies to Models with Nomenclature of “RBxxxGMFILxFHD”.

Disassembly

1. Electrical parts (Antistatic gloves must be worn.)
   Procedure| Illustration
   ---|---

1. Remove 5 screws of the cover of electronic control box and then remove the cover. (see Figure 1.)|
2. Remove the 2 screws of the electronic control box. Then release the 2 hooks of the main control board. (see Figure 2).|
3. Disconnect the connectors and then remove the front main control board (see Figure 3).|
4. Turn over the electronic control box.
   Disconnect the connectors and remove the 2 screws of rear main control board (see Figure 4).|
5. Remove 2 screws of reactor and remove the reactor (see Figure 5).|

2. Fan motor and fan
   Procedure| Illustration
   ---|---

1. Remove 10 screws of the top cover and then remove the top cover (see Figure 6).|
2. Release the 8 hooks of volute shell  (see Figure 7).|
3. Remove the fixing screws of fan (2 screws) (see Figure 8).|

Note: This section is for reference only. Actual unit appearance may vary.

3. Evaporator
   Procedure| Illustration
   ---|---

1. Remove 9 screws of the water collector and remove the water collector (see Figure 9).|
2. Remove the screws of the pipe clamp board and the left side board (3 for the pipe clamp and 9 for left side board) (see Figure 10).|
3. Remove the 2 fixing screws of the evaporator support and then pull up the temperature sensor (see Figure 11).|
4. Remove the fixing screw of the evaporator and then remove it (see Figure 12).|

Note: This section is for reference only. Actual unit appearance may vary.

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