Trane RTHC-SVN02C-EN Bedienungsanleitung

Installation

RTHC

Condenser Water Regulating Valve Option

Order Number: RTHC-SVN02C-EN Date: June 2003

Pueblo Built Units Only

Introduction

To satisfy system oil protection safeties and to maximize energy efficiency, adequate

condenser water control on the RTHC units is necessary. The required system

differential (condensing pressure minus evaporator pressure) is 25 psid for all RTHC

units. This differential must be maintained at all load conditions and must be achieved,

following a start-up, within 2 minutes.

On start-up, the system differential must be at least 8 psid within 20 seconds, which

generally equates to the condenser leaving water temperature being equal to or

greater than the evaporator leaving water temperature. The system also must achieve

a leaving condenser water temperature 25 F higher than the evaporator leaving water

temperature within 2 minutes from start-up and maintain thereafter.

To maintain proper oil flow to the compressor, strict condensing water control is

necessary. One method of achieving this control is through the installation of an

optional water regulating valve.

NOTICE: Warnings and Cautions appear at appropriate sections

throughout this literature. Read these carefully.

WARNING: Indicates a potentially hazardous situation which, if not

avoided, could result in death or serious injury.

 CAUTION: Indicates a potentially hazardous situation which, if not

avoided, may result in minor or moderate injury. It may also be used to

alert against unsafe practices.

CAUTION: Indicates a situation that may result in equipment or property-

damage only accidents.

2RTHC-SVN02C-EN

Discussion

The purpose of this manual is to outline the installation and setup procedures for the

regulating valve and the associated controller for optimal condensing water control.

The condenser water regulating valve option can be ordered with or without the water

regulating valve. Just the controls and pressure transducers can be ordered if an valve

and electric actuator are already available . This manual will cover installation of the

water regulating valve, the controller and the pressure transducers.

Condenser Water Regulating Valve

The optional condenser water regulating valve is produced by Center Line. Below is a

basic installation procedure for installing the valve. For detailed instructions, refer to

the “Center Line Installation and Maintenance Instructions for UL Approved Valves”

found on the internet at http://www.cranevalve.com.

Water Valve Rating

Confirm that the correct valve was shipped by referring to the Center Line nameplate

attached to the valve body. Refer to Table 1 for the list of valves available.

Installation Tools

A hoist will be necessary to manipulate the valve into place and a wrench suitable for

tightening the flange bolts and/or nuts. Temporary pipe supports maybe used to keep

flange faces parallel during installation.

Table 1 Valves Available

Trane Part Number Crane Series Number

Rating

(PSIG)

Actuator

Voltage (AC)

Valve Size

(inches)

VAL06912 06B1021319-44300M-20A 200 115 6

VAL06913 08B1021319-44300M-20B 200 115 8

VAL06914 06B1021319-44300M-20A-220VAC 200 220 6

VAL06915 08B1021319-44300M-20B-220VAC 200 220 8

VAL06916 06M2521319-44300M-20A 300 115 6

VAL06917 08M2521319-44300M-20B 300 115 8

VAL06918 06M2521319-44300M-20A-220VAC 300 220 6

VAL06919 08M2521319-44300M-20B-220VAC 300 220 8

RTHC-SVN02C-EN 3

Condenser Water Regulating Valve

Installation

It is recommended that the valve be installed downstream of the condenser to insure

undisturbed flow into the condenser. Also insure that the condenser does not drain

when the valve is shut off and or when the water pump is off. Drainage of the

condenser will increase tube fouling.

 WARNING

Hazardous Voltage!

Disconnect all electric power, including remote disconnects before servicing.

Follow proper lockout/tagout procedures to ensure the power can not be

inadvertently energized. Failure to disconnect power before servicing could

result in death or serious injury.

1. Inspect the valve for the proper rating.

2. Remove the protective flange covers from the valve.

3. Ensure the valve is free of shipping defects.

4. Be certain the waterway is free of all debris.

5. Almost close the valve prior to installing to avoid damage to the disc or seat of

the valve. Refer to Figure 1.

6. The valve can be installed at any angle; therefore it is recommended that the

indicator and controller be positioned so that it can be read and adjusted, if

necessary.

7. Place the valve between the flanges. Do not use any gasketing material. The

elastomer seat extends beyond the valve seat and provides a leak proof seal

between the valve and the mating pipe flange faces.

Important: Gaskets are not needed and should not be used when the valve is

installed between standard weld neck or slip-on type flanges.

8. Install all bolts between the valve and the mating flanges. Hand tighten all bolts

as necessary.

9. Torque the bolts in the sequence outlined in Figure 2 and to the value listed in

Table 2.

10. Verify full stroke operation with the manual crank and rotation indicator.

Figure 1 Correct Position of the Valve Seat

4RTHC-SVN02C-EN

CAUTION

Equipment Damage!

Do not manually crank the valve with power applied. Damage will occur to the

valve or the actuator.

Table 2 Water Regulating Valve Installation Information

Valve

Size

Valve psig

Rating

Number of Bolts

Required

Thread Size

(inches)

Bolt Length

(inches)

Required Torque

(ft-lbs)

6 200 8 3/4 - 10 2 25-100

8 200 8 3/4 - 10 2 25-100

6 300 12 3/4 - 10 2 1/2 25-100

8 300 12 7/8 - 9 2 3/4 50-200

NOTE: Bolting and Torquing recommendations are made without a warranty, and apply only to steel weld-neck or slip-on flanges. The use of lock

washers and/or lubrication with the bolting will affect stated torque values.

Figure 2 Bolt Torquing Sequence

RTHC-SVN02C-EN 5

Set-up of Electric Valve Actuator

The electronic actuator supplied with the water regulating valve is produced by Crane.

The actuator will come already mounted on the valve and factory set. For detailed

instructions, refer to the “Electronic Control Actuator, Series 44000M, Operation

Manual” released by Crane.

Factory Settings

CAUTION

Equipment Damage!

The actuator is intended for indoor use. Special precautions must be taken if

the actuator will be exposed to rainwater or direct sunlight. Failure to

adequately protect actuator may result in equipment damage.

Several potentiometers are factory set. The settings should not need adjusting in

most applications but are field adjustable if required. Refer to Figure 3.

Figure 3 Valve Actuator

123123123123123123

OPEN STOP CLOSE

DIRECT

ACTION

REVERSE

ACTION

+--

INPUT AC xxx V OUTPUT

++++++

123123

Zero

Span

Sensitivity

6RTHC-SVN02C-EN

The actuator is factory set with a “close limit” of 15 degrees open. The “open limit” is

factory set for 90 degrees open.

NOTE: The “close limit” of 15 degrees open is a nominal opening for a typical system

with typical pressure drops.

“Zero” and “Span” are used to adjust the corresponding mA signal. “Zero” is factory

set such that 4 mA corresponds to 15 degrees open and 20 mA corresponds to 90

degrees open.

The “Sensitivity” is factory set to allow the valve to operate with the largest allowable

number of steps. If the valve appears to sluggish the sensitivity may need to be

decreased.

CAUTION

Equipment Damage!

Valve should be adjusted such that overheating of the condenser water pump

does not occur at reduced flows. It is recommended that the flow rates remain

above 25% of the flow at the best efficiency point. Failure to properly adjust

regulating valve may result in equipment damage.

Important: An improperly sized water valve can result in unstable operation and

throttling difficulties. Follow the valve manufacturer’s guidelines when sizing the

valve.

RTHC-SVN02C-EN 7

Mounting the 4U1 (ASM) Module

UCP2 does not have software capabilities to operate a water regulating valve;

therefore an additional controller is required to monitor the system pressures and

adjust the position of the water valve accordingly. The 4U1 controller is the additional

controller required. It is an adder subtractor module (ASM) manufactured by Moore

Industries Inc. and is a special design for Trane. It is not Moore’s standard ASM

module.

On factory installations, the 4U1 controller is mounted on the bracket between the

evaporator and condenser, above the system differential pressure switch.

This module is mounted in a sheet metal box and is labeled “ASM Adder Subtractor

Module”. The module will accept the input from two pressure transmitters, one on the

evaporator and one on the condenser. It subtracts the two values to determine the

system differential. The module will then produce either a 4-20 mA or 1-5 VDC signal

output to be wired to the actuator on the water valve.

If the controller is not factory installed, use the procedure below to mount the

controller.

Installation

1. Locate the factory mounted pressure differential switch for detecting low

system differential. It is located on the left side of the unit while facing the

control panel, between the evaporator and condenser.

2. Above the switch, mount the 4U1 module to the bracket, facing outward. Use

four 10-32 x 1" screws and four 10-32 nuts.

3. On the left side of the 4U1 box, press out one of the electrical knock-outs and

install one of the bushing strain reliefs (X1910-0028-350) in the opening.

4. On the right side of the 4U1 box, press out one of the electrical knock-outs and

install one of the bushing strain reliefs (X1910-0028-350) in the opening. This

should be level with the knock-out on the left side.

5. On the right side of the 4U1 box, above the strain relief already installed, press

out one of the electrical knock-outs and install the final bushing strain relief

(X1906-0094-010) in the opening.

6. The module is shipped with a resistor between (+) Out and (-) Out terminals to

supply a 1 to 5 VDC output signal. If a 4-20 mA output signal is required, the

resistor between (+) Out and (-) Out must be removed and discarded.

8RTHC-SVN02C-EN

Mounting of the Pressure Transducers

A Danfoss pressure transmitter needs to be installed on the evaporator and the

condenser to feed the system pressures to the 4U1 module.

Installation

To install the transmitters to both the evaporator and the condenser, follow the

procedures below.

1. Locate the two transducers, X1379-0359-010.

2. Locate the two 1/4” flare unions, X1719-0047-010.

3. Tighten one union to each transducer.

4. Close the service valve on the evaporator and condenser where the transducers

will be installed.

5. Install one of the transmitters to condenser service valve located on the top of

the shell.

NOTE: Install a schrader tee prior to the transducer, if an access port is desired.

6. Install one of the transducers on the evaporator service valve located on top of

the shell.

NOTE: Install a schrader tee prior to the transducer, if an access port is desired.

7. Open all service valves and insure all connections are leak free.

8. Run the electrical leads of the transducers to the 4U1 controller. Wire according

to the next section.

Figure 4 4U1 (ASM) Mounting and Wiring

RTHC-SVN02C-EN 9

Wiring

Wiring can be completed once all of the components are installed.

 WARNING

Hazardous Voltage!

Disconnect all electric power, including remote disconnects before servicing.

Follow proper lockout/tagout procedures to ensure the power can not be

inadvertently energized. Failure to disconnect power before servicing could

result in death or serious injury.

Connecting Supply Voltage to the 4U1

The controller requires 24 VAC to operate.

Note: If the module is factory installed, the power supply wiring will already be

connected.

1. To connect the power to the module, use four-lead conductor wire, (X1906-0094-

010).

2. Connect the red lead to the J2-4 on the 1U2 starter module.

3. Connect the black lead to the J2-3 on the 1U2 starter module.

4. Connect the other end of red lead to ACC in the 4U1 controller.

5. Connect the other end of the black lead to AC in the 4U1 controller.

NOTE: Conduit is not required. Four-lead conductor wire is to be used X1906-

0094-010. Trim the two additional wires.

Wiring the Pressure Transducers to the 4U1 Module

1. The transducer ships from the supplier with a four-wire cable and a ground. Only

2 wires and the ground will be used. Install a fork connector to the black lead,

red lead and the ground. The white and green leads are not used and can be cut

back out of the way.

2. Prepare the wire leads for both transducers.

3. Feed the leads through the lower bushing strain reliefs installed in the sheet

metal box.

4. Connect the black lead of the transducer installed on the condenser to S1 - 4U1.

5. Connect the red lead of the transducer installed on the condenser to TX1 - 4U1.

6. Connect the ground of the transducer installed on the condenser to GND - 4U1.

7. Connect the black lead of the transducer installed on the evaporator to S2 - 4U1.

8. Connect the red lead of the transducer installed on the evaporator to TX2 - 4U1.

9. Connect the ground of the transducer installed on the evaporator to GND - 4U1.

Connect the 4U1 Output to the Water Valve

The wiring between the 4U1 controller and the water valve is customer supplied. It is

class 2 wiring. It should not be run in conduit with higher voltage wire.

Important: To avoid erratic control of the valve, do not run the signal wire between

the 4U1 controller and the water valve in conduit with voltages higher than 30 volts.

10 RTHC-SVN02C-EN

4-20 mA Signal

1. Remove the 250 ohm resistor, factory mounted on the 4U1 module between

the -Output and +Output.

2. Connect the first wire between the +Output on the 4U1 controller and the

Input (+) on the actuator.

3. Connect the second wire between the -Output 4U1 controller and Input (-) on

the actuator.

Note: If the water valve and actuator were not ordered, the signal can also be

used by a BAS system.

1-5 VDC Signal

1. Confirm the connection of the 250 ohm resistor, factory mounted on the 4U1

module between the -Output and +Output.

2. Connect to +Output on the 4U1 controller and Input (+) on the actuator.

3. Connect the second lead to -Output 4U1 controller Input (-) on the actuator.

Note: If the water valve and actuator were not ordered, the signal can also be

used by a BAS system.

Connecting Supply Voltage to the Water Valve

Actuator

The power supply for the valve actuator is customer supplied. For 115 VAC

applications, #14 AWG 600V wire is needed.

Connect the customer supplied voltage to terminal points labeled “XXX” ACV on the

right side of the actuator. Refer to Figure 5.

Figure 5 Wiring Schematic

1U2 Starter

Module J2

4U1 ASM Module

-S

ACC

GND

TX1

-S

TX2

+OUT

-OUT

Valve Actuator

INPUT ACxxxV OUTPUT

+-+-

Customer Supplied

115 VAC or 230 VAC

condenser

pressure transducer

4R1

(red)

(blk)

evaporator

pressure transducer

4R2

(red)

(blk)

(braided)

Inhaltsverzeichnis

Andere Trane Steuereinheit Handbücher

Trane

Trane Tracer MP503 Montage- und Bedienungsanleitung

Trane

Trane ComfortLink II XL 850 Bedienungsanleitung

Trane

Trane TR200 MCB 105 Bedienungsanleitung

Trane

Trane BAYLOAM105AA Montageanleitung

Trane

Trane AYSVPANL0022AA Series Montageanleitung

Trane

Trane BAYENTH001A Montageanleitung

Trane

Trane TZON1050AC52ZA Bedienungsanleitung

Trane

Trane BAS-SVN213A-EN Bedienungsanleitung

Trane

Trane CNT06197 Montageanleitung

Trane

Trane VAV Bedienungsanleitung

Trane

Trane CG-SVN01A-EN Bedienungsanleitung

Trane

Trane Tracer MP503 Betriebsanleitung

Trane

Trane 700 Bedienungsanleitung

Trane

Trane Belimo B2 Series Bedienungsanleitung

Trane

Trane TR200 MCB 101 Bedienungsanleitung

Trane

Trane Wireless Comm Montage- und Bedienungsanleitung

Trane

Trane XL824 Bedienungsanleitung

Trane

Trane PM014 Montage- und Bedienungsanleitung

Trane

Trane XL824 Bedienungsanleitung

Trane

Trane Tracer Summit Montageanleitung

Trane

Trane VAV-UCM 4.2 Bedienungs- und Sicherheitshinweise

Trane

Trane BAY4TXV1830A Montageanleitung

Trane

Trane UNT-SVU011C Series Kurzanleitung

Trane

Trane Tracer XM30 Montage- und Bedienungsanleitung

Beliebte Steuereinheit Handbücher anderer Marken

Festo

Festo Compact Performance CP-FB6-E Stücklistenhandbuch

Elo TouchSystems

Elo TouchSystems DMS-SA19P-EXTME Bedienungsanleitung

JS Automation

JS Automation MPC3034A Bedienungsanleitung

JAUDT

JAUDT SW GII 6406 Series Kurzanleitung

Spektrum

Spektrum Air Module System Bedienungsanleitung

BOC Edwards

BOC Edwards Q Series Bedienungsanleitung

KHADAS

KHADAS BT Magic Bedienungsanleitung

Etherma

Etherma eNEXHO-IL Bedienungsanleitung

PMFoundations

PMFoundations Attenuverter Bedienungsanleitung

GEA

GEA VARIVENT Bedienungsanleitung

Walther Systemtechnik

Walther Systemtechnik VMS-05 Bedienungsanleitung

Altronix

Altronix LINQ8PD Montageanleitung

Eaton

Eaton Powerware Series Bedienungsanleitung

WAGO

WAGO 750-407/040-000 Bedienungsanleitung

Sony

Sony CCU-590 Bedienungsanleitung

Graco

Graco 25D614 Bedienungsanleitung

Task Force Tips

Task Force Tips YE-RF-900 Programmierhandbuch

Shini

Shini SPV-U Series Bedienungsanleitung