Raised Vent RV30, 36, 46 Service Manual RVC RVR
Issued By: Technical Service Date Issued: 4-2004 Page Distribution: Service/Parts Subject: Service Issue Product Type: Ventilation Model No: RV 1 of 1 Supercedes: Bulletin No: 04-07 RV Speed Control RV30, 36 & 48 produced after 1/30/04: units equipped with the 12A control board part # 72881, the mounting screw for the main terminal board could be in contact with the heat sink on the control board.
Theory of Operation When keypad up/down button is pushed, contacts on the main PCB close between #12 and #13. Closing these contacts activates the triac for the sleeve motor which is connected to terminals L3 and N3 on the main PCB. The motor then raises the intake assembly until contact is made with the up stroke limit switch opening the circuit and reversing the electronic switch on the main PCB. When pressed again, the cycle reverses itself and stops in the retracted position.
If the above test does not show a closed circuit, perform the following. ♦ Check for grease or any foreign material between the Touch Buttons and the contact board. Clean with an electronic contact cleaner as described above. ♦ Repeat test above. ♦ If the contacts are clear, replace the keypad assembly. ♦ If the circuit is closed, check for 120VAC between contacts N3 and L3 on the main PCB. If voltage is not present, replace the main PCB.
Possible Failures A. Unit dead on arrival 1. Check the keypad to be sure that the Lockout Mode has not been activated (look for the two LED’s) To disable press and hold the HIGH and LOW button for a minimum of 1.0 second. 2. Check voltage between N1 and L1 on the main PCB. The voltage should be 120VAC. If voltage is not present check the incoming power supply and all wiring connections. A miswired unit may cause the PCB to fail. 3.
2. If the problem can be traced or associated with the use of an electronic gas cooktop (of any design) then a filter assembly (part number 86325) should be installed. H. Filter light stays on: 1. If the filter light remains on after the filter button is depressed remove power to the unit to deposit to replace the P.C.B 2. If the light remains on after resetting the microprocessor, replace the main PCB I. Main PCB keeps shorting out: 1. Check for reversed polarity on the incoming power supply. 2.
If DELAY OFF function is on, this will also be cancelled by pressing the OFF button. DELAY OFF BUTTON This button has a toggle action. Pressing and releasing this button will enable the fiveminute DELAY OFF function. Pressing and releasing this button again will cancel the selected DELAY OFF function. When the DELAY OFF function is selected, the fan will continue to operate at the selected speed for five minutes and then turn off automatically.
THE BUTTONS WILL BE DISABLED UNTIL THIS FUNCTION IS ENABLED BY AGAIN PRESSING AND HOLDING THE TWO SPEED BUTTONS FOR 0.5 SECONDS. This function will permit the cleaning of the unit without accidentally activating the unit. INITIAL POWER UP On power up, the controller will not assume any status of the two limit switches. It is assumed that the sleeve motor will either be in its upright position or its lowest position.
R V - RAISED VENT # 7, #9 Use * After S/N RE0000000 *Order As Kit, 700991 700991, Control Board, Asy. Part# Decription - Qty. 72881 - Control Board, 12a - 1 83538 - PCB Support, Nylon - 4 Ref. 1 2* 3* * 4 5 6 Description Top Cap End Cap - Left End Cap - Right Colors A,B,R,C,S Bezel Keypad Keyboard, P.C.B.
RVC PARTS
RVC30, 36, 46 REF# 1 2 2 2 3 4 5 6 7 8 8 8 9 9 9 10 11 11 11 12 13 14 14 14 15 16 17 18 19 19 19 20 21 22 23 24 25 26 27 27 27 28 29 30 31 32 33 34 35 36 NOT SHOWN PART # 82708A, B, W 82705AS, B, WS 82706AS, BS, WS 82707AS, BS, WS 82709A, B, W 82710A, B, W 82711 86347 83038 82766 82767 82768 82702 82703 82704 26516 13227 13228 13229 83008 83532 86320 86321 86322 82723 82726 83017 86323 27375 27376 27377 13226 82725 26502 82713 14362 14363 14361 27381 27382 27383 26522 26500 86100 83009 12085 26501 26521 8
RVR PARTS
RVR30, 36, 46 REF# 1 2 2 2 3 4 5 6 7 8 8 8 9 9 9 10 11 11 11 12 13 14 14 14 15 16 17 18 19 19 19 20 21 22 23 24 25 26 27 27 27 28 29 30 31 32 33 34 35 NOT SHOWN PART # 82708A, B, W 82705AS, B, WS 82706AS, BS, WS 82707AS, BS, WS 82709A, B, W 82710A, B, W 82711 86347 83038 82766 82767 82768 82702 82703 82704 26516 13227 13228 13229 83008 83532 86320 86321 86322 82723 82726 83017 86323 27375 27376 27377 13226 82725 26502 82713 14362 14363 14361 27384 27385 27386 26524 26513 26523 26500 86100 83009 12085 2650
RV Technical Manual - Page 135
