Application Guide

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CSP-5001/5002 VAV Flow Controller-Actuators 1 Applications Guide, Rev. B

Applications Guide

VAV Flow Controller-Actuators

CSP-5001/5002

General Information ..................................................................................................................................... 2

CSP-5001/5002 Overview ..........................................................................................................................................2

Controller, Sensor, and Thermostat Functions ............................................................................................................3

Wiring ........................................................................................................................................................................4

Air Flow Sensor Connection .......................................................................................................................................4

Rotation Setup ............................................................................................................................................................4

Controller Testing .......................................................................................................................................................5

System Troubleshooting ..............................................................................................................................................5

Controller Calibration ................................................................................................................................................6

Minimum and Maximum Flow Limits ....................................................................................................................6

VNOM (CFM) Range Setting .................................................................................................................................6

CTE-5100 Series Thermostat Reference

......................................................................................................................7

Checkout and Calibration

.....................................................................................................................................7

CTE-5100 Series Cross-Reference ..........................................................................................................................8

Changing a CTE-5100 Thermostat to a Remote Sensor ..........................................................................................9

Applications ............................................................................................................................................... 11

Cooling or Heating ...................................................................................................................................................11

Auto, Override to Fully Closed, or Override to Fully Open ......................................................................................12

Cooling with 3-Stage Reheat ....................................................................................................................................13

Cooling with 3-Stage Reheat and 10 Degree Night Setback/Setup ...........................................................................14

Cooling with Heating Changeover............................................................................................................................15

Cooling with Heating Changeover and Electric Reheat ............................................................................................16

Cooling with Heating Changeover and Hot Water Reheat ........................................................................................17

Cooling with Hot Water Reheat ...............................................................................................................................18

Dual Duct, Minimum Air From Cold Duct ...............................................................................................................19

Fan Induction with 2-Stage Electric Heat .................................................................................................................20

Index .......................................................................................................................................................... 21

Summary of content (21 pages)

PAGE 1
VAV Flow Controller-Actuators CSP-5001/5002 Applications Guide General Information...................................................................................................................................... 2 CSP-5001/5002 Overview...........................................................................................................................................2 Controller, Sensor, and Thermostat Functions....................................................................................
PAGE 2
General Information CSP-5001/5002 Overview On older models, a tri-color LED indicates green for opening, red for closing and white/off for satisfied damper positions. On newer models, two separate red and green LEDs indicate opening and closing. The analog electronic CSP-5001/5002 VAV flow controller-actuators are pressure-independent combination controller-actuators designed primarily for use on variable air volume terminal units.
PAGE 3
Controller, Sensor, and Thermostat Functions The Controller: The controller is designed to: The chart below illustrates typical voltage versus velocity using a CSP with a SSS-1002, single-point flow sensor. Because this is a flow-through type sensor, the tubing type will directly affect flow readings. To maintain a close correlation with the factory calibration, installations must use 24 inches of 1/4-inch OD x 0.040 wall tubing without restrictions such as fittings or kinks.
PAGE 4
Wiring Air Flow Sensor Connection 1. Remove the CSP’s wiring access door by pulling back on the door’s tab and lifting upward. 2. Access for wire or cable is via two 5/8 in. (16 mm) diameter snap-in shutter bushings located on the rear of the CSP’s cover. 3. Connect conduit to the actuator if required (connectors are not supplied—order separately): A. HMO-4518 for 1/2 in. flexible conduit. B. HMO-4520 compression connector for plenum rated cable. C. HMO-4526 for rigid 1/2 in. conduit. 4.
PAGE 5
Controller Testing Test the CSP actuator’s motor operation: 1. Temporarily disconnect the thermostat reset connection at Terminal “IN”. 2. Jumper “IN” terminal to the “16 VDC” terminal. The green Open LED should illuminate. The shaft drive hub should be rotating the damper open. The damper should go to full open unless the maximum limit was set at the CSP, and then the damper will only go to the maximum setting. If the damper is rotating closed, the “Close” jumpers must be changed.
PAGE 6
Controller Calibration Minimum and Maximum Flow Limits VNOM (CFM) Range Setting Minimum and maximum flow limits are often set at the CTE-5100 series thermostat (see the CTE-5100 Series Thermostat Reference section).
PAGE 7
CTE-5100 Series Thermostat Reference Checkout and Calibration The thermostat (CTE-5100 series) operates on a 16 volt DC power supply from the CSP controller and outputs a 0–10 volt DC signal on the T(x) terminals (Direct Acting T1 and Reverse Acting T2). See the CTE-5100 Series Thermostat Reference Page for details on which ‘T’ terminals are used on each model thermostat, but generally T1 and T3 are used for the cooling mode and T2 and T4 for heating.
PAGE 8
CTE-5100 Series Cross-Reference CTE-5100 Series Thermostat Cross-Reference Thermostat Terminals 5101 5102 5103/ 5105 5104 Terminal Description V1 X X X Velocity input; connect to “out” terminal on CSP for readout. T3 X X X Upper set point output w/o limits (0–10 volt fixed signal; can be measured on back of stat). R1 X X X T1 override, connect to “–” if unused. Voltage applied subtracts from T1. T1 X X X Upper set point output, with limits; adjustable at pot.
PAGE 9
CTE–5103 DA/RA Thermostat Jumpers 12 V1 T3 R1 T1 + V A CTE–5101 DA Thermostat T2 R2 T4 V2 Jumper 12 V1 T3 R1 T1 + V A CTE–5104 DA/RA Thermostat Jumper 12 V1 T3 R1 T1 + V A T2 R2 CTE–5102 RA Thermostat 12 + V A Jumper T2 R2 T4 V2 CTE–5105 DA/RA Thermostat Jumpers 12 V1 T3 R1 T1 + V A T2 R2 T4 V2 Changing a CTE-5100 Thermostat to a Remote Sensor A thermostat controller with an external temperature sensor provides a means to remotely locate the temperature sensor in the supply or return air duct
PAGE 10
NOTE: A (Type III thermistor) STE-14xx duct sensor could be substituted for the (Type II thermistor) TTE-2001 since the difference in values would be minor at normal room temperatures.
PAGE 11
Applications Cooling or Heating The CTE-5100 series single-setpoint thermostats are designed for use with CSP-5000 series electronic VAV controllers to operate damper boxes and/or valves in the HVAC system. As shown in the diagram, a “requested flow” voltage signal (T1 or T2) is wired to the CSP-5001 to adjust airflow from minimum to maximum flow according to space demand. Minimum and maximum flow limit adjustments can be made at the thermostat or at the controller.
PAGE 12
Auto, Override to Fully Closed, or Override to Fully Open The “Override to Fully Closed” wiring diagram below allows the CTE-5101 thermostat to control the CSP-5001 controller as normal (Auto) or override flow setting on the CSP-5001 to fully closed. The “Override to Fully Open” wiring illustration below allows the CTE-5101 thermostat to control the CSP-5001 controller as normal (Auto) or override the flow setting on the CSP-5001 to fully open.
PAGE 13
Cooling with 3-Stage Reheat The CTE-5104 electronic thermostat is a dualsetpoint thermostat for heating (RA) and cooling (DA) applications. The application below uses an REE-5001 relay module and three 24 VAC contactors for three stages of reheat. temperature continues to drop, the second stage begins and so on (see the first chart). This auxiliary flow is used as a second minimum flow before enabling the reheat stages.
PAGE 14
Cooling with 3-Stage Reheat and 10 Degree Night Setback/Setup This configuration is the same as on the previous page except for the simple addition of a SPST relay or switch and a resistor (see chart below for value). it really is. This would inhibit the heat stages from coming on during the unoccupied mode (night setback). If the resistor and switch are instead connected between thermostat terminals A and –, the room would seem 10° cooler than it really is, inhibiting cooling during unoccupied times.
PAGE 15
Cooling with Heating Changeover NOTE: REE-1005 terminal “A” can be used to trigger an auxiliary setpoint when used with a CTE-5104 or REE-1012. This terminal can also be used to daisy chain more than one REE-1005 together by wiring Terminal “A” to Terminal “Y” on the next relay. The CTE-5103 electronic thermostat is a dual set point thermostat for heating (RA) and cooling (DA) applications.
PAGE 16
Cooling with Heating Changeover and Electric Reheat This application utilizes the same controls as Cooling with Heating Changeover but adds the REE-5001 relay for electric reheat. When the VAV inlet air temperature becomes warm (such as morning warmup), changeover occurs. In this mode, “T2” controls the CSP-5001. The first stage of heat is enabled when the space temperature is slightly above the heating setpoint (3.5 volts).
PAGE 17
Cooling with Heating Changeover and Hot Water Reheat NOTE: REE-1005 terminal “A” can be used to trigger an auxiliary flow setpoint when used with a CTE-5104 or REE-1012. This terminal can also be used to daisy chain more than one REE-1005 together by wiring Terminal “A” to Terminal “Y” on the next relay.
PAGE 18
Cooling with Hot Water Reheat This application uses a CTE-5104 thermostat with a VEP-43/VEB-46 series 3-way hot water valve to control temperature in the conditioned space. The valve shown below uses the (discontinued) MEP5062 or (fail-safe) MEP-5372 actuator for reheat control. (Former Ref. # APE-1-5017) With 0 VDC from the thermostat, the mixing valve bypasses water from the supply to the return.
PAGE 19
Dual Duct, Minimum Air From Cold Duct Dual duct applications can use two CSP-5001 series controllers with a dual-setpoint (RA/DA) thermostat, as shown below. In this application the CSP-5001 controllers are mounted separately on the cold and hot air duct dampers with each utilizing it’s own flow sensor.
PAGE 20
Fan Induction with 2-Stage Electric Heat The CTE-5101 electronic thermostat is a single-setpoint thermostat for cooling (DA). In this application, the thermostat is used with the REE5002 relay module, a fan, and two coils (for two stages of reheat). The REE-5002 was designed primarily for use with VAV fan-powered induction boxes. If the thermostat drops below setpoint, the relay senses the decrease in voltage and starts the fan.
PAGE 21
Index A L Air Flow Sensor 4 Applications 11 Auto, Override to Fully Closed, or Override to Fully Open 12 Limits 6 C O Calibration 7 CCW vs.