ComCo Systems 621 Series Setup guide
1 ComCo Systems Inc. | 800.533.3794 | www.comcosystems.com 500648 Rev. A
621
Series
April 12th, 2021
ComCo Systems, INC. A division of Communications Conveyor Company
P/N: 500648 Rev. A
This publication contains materials protected by copyright. No part of this publication may be reproduced in any form or used
as the basis for the sale or manufacture of apparatus without prior written consent by ComCo Systems.
©2020 ComCo Systems INC All rights reserved
Some of the materials and applications described in this publication may be protected under one or more of the following US
patents: DES272076, 4180354, 4971481, 4984939, 5584613, 6039510, or other Patents Pending.
ComCo Systems Inc. | 800.533.3794 | www.comcosystems.com 500648 Rev A2
621
Series
System Features pg. 3
621 Manual Operator Unit
621 Customer Unit
Dual Blowers
Operation
621 Manual Operator Unit pg. 4
Operations
Specification
621 Customer Unit pg. 8
Operations
Specification
Dual Blowers pg. 11
Operations
Specification
Carriers pg. 13
Operations
Specification
Theory of Operation pg. 14
Installation pg. 16
System Setup and Installation
Field Wiring Diagram
Maintenance and Cleaning pg. 23
Troubleshooting pg. 24
Replacement Parts pg. 25
Contents
3 ComCo Systems Inc. | 800.533.3794 | www.comcosystems.com 500648 Rev. A
621
Series
System Features
The Model 621 is an overhead pressure/vacuum system that utilizes 6” tubes and
carriers. The carrier travels from the teller unit to the customer unit under pressure and
returns under vacuum. The blower unit is located near the teller unit.
•The Model 621 is configured with three major subsystems:
1. 621 Operator Unit P/N: 201314
2. Dual Blower Unit P/N: 200281-3
3. 621 Customer Unit P/N: 201315
Features
Operator Unit
TU-621-201314
Manual operated door unit,
which is suspended from the
ceiling, typically over
countertop.
Customer Unit
CU-621-201315
Open carrier access design
with optional 2-way video
unit.
Dual Pack UL
Blowers
200217-2(x2)
Features:
2 Power Cords
2 115Vac/15A
2 Blowers for pressure
2 Blowers for vacuum
5 ComCo Systems Inc. | 800.533.3794 | www.comcosystems.com 500648 Rev. A
621
Series
Manual Operator Unit (P/N: 201314)
The manual operator unit utilizes a manually operated door. The operator unit’s door MUST remain
closed during a send or recall cycle for the system to function properly. The operator unit door should
only be opened when a carrier is being inserted to send to the customer unit, or immediately after a carrier
has arrived from the customer unit. To resume operation close door and press RECALL or SEND.
Please note the reference guide in Fig. 1.0.
Operation
Fig. 1.0
ComCo Systems Inc. | 800.533.3794 | www.comcosystems.com 500648 Rev A6
621
Series
Operator Unit (P/N: 201314)
Switch Operating instructions
ON/OFF The power switch cycles the complete system (Inside Unit,
Outside Unit & Blowers). Power ON: all lights will be present.
Power OFF: complete system power down.
SEND Sends a carrier to the customer unit. The operator unit door must be
closed in order to send a carrier to the customer unit.
RECALL Recalls a carrier from the customer unit. The operator unit door must be
closed in order to recall a carrier from the customer unit.
Operation
7 ComCo Systems Inc. | 800.533.3794 | www.comcosystems.com 500648 Rev. A
621
Series
Operator Unit (P/N: 201314)
Dimensional & Electrical Specifications
Item
Measurements
Value
Operator Unit
(TU-621-200430-1)
Nominal Voltage
Current (max)
24 VAC From Blower
1 Amp
System Controller
(P/N: 200155K)
See Appendix A
For System Settings
Specification
9 ComCo Systems Inc. | 800.533.3794 | www.comcosystems.com 500648 Rev. A
621
Series
Customer Unit (P/N: 201315)
Machine & Switch Operating Instructions
SENDSends carrier to Teller Unit.
CALL Generates audible tone at the Pharmacy when depressed.
Bottom Switch Plate (P/N: 201328)
Top Switch Plate (P/N: 201327)
Operation
ComCo Systems Inc. | 800.533.3794 | www.comcosystems.com 500648 Rev A10
621
Series
Customer Unit (P/N: 201315)
Dimensional & Electrical Specifications
Item
Measurements
Value
Customer Video Module
(CVM-2000-200903-10)
Nominal Voltage
Current (max)
12 VDC
3.5 Amps
1520 Lane Station
(600651)
Nominal Voltage
Current (max)
12 VDC
1.5 Amps
Specification
ComCo Systems Inc. | 800.533.3794 | www.comcosystems.com 500648 Rev A12
621
Series
Dual Pack Blower Module (P/N: 200217-2(x2))
Line Voltage Installation
For Installation of this unit refer to construction site plans or cut sheet for locating the unit. If the blower
is installed in a closed canopy, the exhaust port must be vented to outside air to prevent overheating.
NOTE:
There must be (x2) 115VAC @ 20A dedicated circuits within 3.0 ft of the unit. All Line Power must be
done in compliance with the NEC (National Electrical Code) by authorized/qualified personnel.
2-115 VAC 0.5 A Resettable Fuse
2-115 VAC 1.5 A Resettable Fuse
Class 2
Field Wiring
SHOCK HAZARD
Disconnect AC Power before Servicing Unit
*AC Service Disconnect for Unit is
located at the Main Junction Breaker Box*
Use ¼” minimum hardware to
mount unit in place. For
mounting location see cut
sheets for job site.
4-115 VAC 10A
Resettable Fuse
WARNING: SHOCK HAZARD
Disconnect AC Power before Servicing Unit Only to be serviced by Qualified Personnel
*AC Service Disconnect for Unit is located at the Main Junction Breaker Box*
Installation
13 ComCo Systems Inc. | 800.533.3794 | www.comcosystems.com 500648 Rev. A
621
Series
6” Carrier(P/N: 602124)
Carriers must be fully closed before they are inserted into either the operator unit or the customer unit.
Carriers that are not fully closed may fail to leave the sending unit, may become lodged within the
transmission tubing, or possibly lose their contents during transmission.
If coins are to be sent, it is recommended that they be rolled and placed in a pouch or bag. Loads that can
shift during transmission may cause malfunction or damage to the carrier or system.
Carriers are not to exceed a gross weight of 5lbs.
The contents of the carrier must be fully within the carrier and not caught between edges. Multiple
transmissions should be used if a load is too large to fit within the single carrier.
Specification
ComCo Systems Inc. | 800.533.3794 | www.comcosystems.com 500648 Rev A14
621
Series
Theory of Operation
Powering the System
The rocker switch in the center of the Operator unit control panel controls power to the system. The
adjacent red LED indicates “power on.”
NOTE: The power switch does not switch off 120VAC service to any component. It is only used
to deactivate the system. Some components may remain energized and/or active when the system
is “off.”
Power ON
1. Technician switches power on
2. Power indicator illuminates
3. System is now in ready state
Power OFF
1. Technician switches power off
2. Power indicator extinguishes
3. System is now off
The power switch may be used to recover from unusual system conditions simply by switching it off and
on – this will reset the system.
Send cycle
1. Technician inserts carrier into Operator Unit
2. Technician closes Operator Unit door and presses SEND
3. Send cycle begins
4. Pressure blower activates
5. The valve in the Operator Unit Check Valve closes and the valve in the Operator Unit opens,
sending air pressure to Operator Unit
6. Carrier is propelled from Operator Unit into transmission tubing, towards Customer Unit
7. Carrier passes Deceleration Switch Tube over Customer Unit
8. Pressure blower deactivates
9. Carrier decelerates due to Solenoid engaging
10. Solenoid timer waits for Carrier to land.
11. Send cycle ends; System is now in ready state
Operation
15 ComCo Systems Inc. | 800.533.3794 | www.comcosystems.com 500648 Rev. A
621
Series
Recall cycle
1. Customer inserts carrier into Customer unit
2. Customer presses SEND
3. Recall cycle begins
4. Vacuum blower activates
5. The valve in the Operator Unit Check Valve opens, sending vacuum to the Customer Unit
6. Carrier is pulled from Customer Unit into transmission tubing towards Operator Unit
7. Carrier passes Operator Check Valve
8. Carrier is decelerated by pressure ahead of carrier (valve in Check Valve blocks pressure from
Operator Unit)
9. Carrier arrives at Operator Unit.
10. Cycle timer times out
11. Recall cycle ends – system is now in ready state
Operation
This manual suits for next models
2
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