Gaymar TP-500, TP-500C User manual

T/PUMP

TP500 / TP500C Heat Therapy System

LISTED 304L

STANDARD (NORME) C22.2 NO. 125 RISK CLASS (CATEGORIE DE RISQUES) NO. 2G

SERVICE MANUAL

P/N 11950-000 9/03

CONTENTS

Safety Precautions ..................... 1

Introduction ......................... 2

Features ............................ 3

Specifications ........................ 4

Operating Instructions .................. 5

Storage/Cleaning ...................... 7

Theory of Operation ................... 8

Functional Check and Safety Inspeciton ....... 10

Inspection Form ...................... 15

Disassembly/Reassembly ................. 16

Calibration .......................... 19

Troubleshooting ...................... 21

Replacement Parts ..................... 27

Warranties .......................... 30

ILLUSTRATIONS

1 T/Pump® Heat Therapy System ........ 2

2 Features/Specifications .............. 3

3 Clik-Tite® Connectors .............. 5

4 Colder-style Connectors ............ 5

5 T/Pump Components .............. 9

6 Motor ........................ 11

7 TPC1 Test Covers ................ 22

8 Functional Check Test Diagram ....... 23

9 Circuit Diagram for T/Pump .......... 24

10 Circuit Diagram for TPC1 Test Cover .. . 25

11 Exploded View of T/Pump ........... 26

SERVICE MANUAL

TP500/TP500C T/PUMP

BEFORE YOU BEGIN . . .

Read and understand this T/PUMP SERVICE MANUAL and all PRECAUTIONS (see page 1) prior to servicing the T/Pump.

The purpose of this manual is to provide operation, service, and repair information for GAYMAR heat therapy pumps.

RECEIVING INSPECTION

Check the shipping carton for damage immediately upon receipt. If package damage is discovered, the device should be unpacked with the carrier's agent present. Any claims for shortage or damage must be filed with the delivering carrier by the purchaser. Do not return pumps damaged in shipment to GAYMAR without contacting our Technical Service Department for advice (see phone numbers below). If damaged goods are returned to GAYMAR without notifying the carrier, GAYMAR will assume the repairs will be made at the customer's expense.

TO RETURN PUMPS TO FACTORY FOR REPAIR OR EXCHANGE

Merchandise returned to GAYMAR must be accompanied by a Return Goods Number (RG#), issued by GAYMAR, authorizing goods to be returned. Call Customer Service or Technical Service at

(716) 662-2551 1 800 828-7341

Advise model, serial number, and nature of problem. You will be given a Return Goods Number (RG#).

The serial number is on the back of the T/Pump (see figure 2, p. 3).

SERVICE MANUAL

DANGER

CAUTION

WARNING

TP500/TP500C T/PUMP

SAFETY PRECAUTIONS

• Risk of explosion. Do not use in the presence of flammable

anesthetics.

• Risk of electric shock. Disconnect power before servicing the T/Pump.

• This device pumps warmed water through a pad. Set pad temperature only as prescribed by and under the guidance of a physician. Monitor the patient's temperature and skin condition every 20 minutes or as directed by a physician. Failure to

adhere to these warnings could result in patient injury.

The following Groups/Conditions require additional surveillance:

Group/Condition at risk Potential injury

Pediatric patients Hyperthermia/

hypothermia Patients with impaired circulation Ischemia Areas of application are under pressure Ischemia In combination with topical solutions whose toxicity

may be affected by the application of heat In combination with other heat sources Thermal injury

Chemical

injury

• Only qualified medical service personnel should repair the T/Pump. Improper repair may result in death or

serious injury, equipment damage, or malfunction.

• Always perform the

INSPECTION

(pp. 10-14) after making repairs and before

FUNCTIONAL CHECK AND SAFETY

returning the T/Pump to patient use. Document your findings on the

INSPECTION FORM

(p. 15). Improper

repair may result in death or serious injury, equipment damage, or malfunction.

• Do not perform any powered tests with the reservoir empty. Damage to the T/Pump may result.

INTRODUCTION

SERVICE MANUAL

TP500/TP500C T/PUMP

Single Pad Multiple Pads

Figure 1—T/Pump Heat Therapy System

Heat therapy is effective in the dilation of blood vessels, thereby increasing the blood flow to the heated area. Heat therapy has a variety of uses, the most common being treatment of aches and pains in joints and muscles.

The GAYMAR T/Pump® Heat Therapy System provides a means of applying heat therapy by supplying temperature-controlled water through a connector hose to a Gaymar T/Pad®. The hose is terminated in easy-to-use Clik-Tite® or Colder-style connectors.

The T/Pad provides the interface for delivering the heat therapy. The unique button design allows water to flow and provides trouble-free operation when the pad is folded. This reduces the number of pads your facility must keep in inventory. The pads are applied to the part of the body requiring heat therapy, and the circulating water maintains the pad at the set point temperature. The temperature setpoint is key-operated to prevent tampering.

The T/Pads can be interconnected (on model TP500 only) to provide therapy to more than one body site at a time.

SERVICE MANUAL TP500/TP500C T/PUMP

FEATURES

Figure 2—T/Pump Features

Attached Hose 10 ft (305 cm) dual hose. Connectors allow pads to be

connected to the pump (see figs. 3 and 4, p. 5).

Tip-over Turns heater off if pump is tipped. Switch NOTE: This does not activate the

Hospital ID A label is provided on the back of the T/Pump for your Label convenience. Use a felt tip or ball point pen to add any

required hospital identification.

OVER TEMP

Light This light is activated by the two

Circuit Breaker When the circuit breaker trips, the small button in

OVER TEMP

Safety if the high temperature limit is exceeded. The Thermostats light will glow. Refer to the

Indicates the pump and heater have been turned off.

thermostats. Refer to the

the center will extend 1/4", exposing a white band. Refer to the

Either of two limit thermostats will shut off pump and heater

TROUBLESHOOTING

OVER TEMP

TROUBLESHOOTING

section.

TROUBLESHOOTING

light.

safety

section.

OVER TEMP

section.

SPECIFICATIONS

SERVICE MANUAL

TP500/TP500C T/PUMP

SPECIFICATIONS

Size (approx.) 8-1/8" x 5-5/8" x 6-1/4"

(20.6 cm x 14.3 cm x 15.9 cm)

Weight (empty) 5 lbs, 2 oz (2.3 kg)

Reservoir capacity 51 oz (1500 ml) maximum

Flow rate 9 gph (34 lph) minimum with pad attached

Ambient operating 60°F to 90°F (15.6°C to 32.2°C) temperatures

Storage temperatures -30°F to 160°F (-34.4°C to 71.1°C) (empty)

Temperature set point 85°F to 107°F (29.4°C to 41.7°C) range

Average operating ±2°F at 107°F setting temperature accuracy

Power cord 18 AWG, 3 conductor, 9 ft (274 cm), Type SJT

with molded, hospital grade plug

Circuit breaker 3 amperes

1st backup limit Bimetallic (trip point fixed) thermostat 110°F to 117°F (43.3°C to 47.2°C) (manifold mounted)

2nd backup limit Bimetallic (trip point fixed) thermostat 110°F to 122°F (43.3°C to 50°C) (well mounted)

Current leakage 100 microamperes maximum

Ground resistance 0.5 ohm maximum

Electrical requirements

Voltage (VAC) 120 Frequency (Hz) 60 Current (amps) 1.8 Power req'd (watts) 200

Safety approvals Tested to UL 544 and CSA C22.2, No. 125

SERVICE MANUAL TP500/TP500C T/PUMP

T/Pumps are supplied with one of two types of hose connectors:

TP500 T/Pumps have Clik-Tite® connectors; TP500C T/Pumps have Colder-style connectors.

CLIK-TITE® CONNECTORS (on TP500):

To attach Clik-Tite connectors from hose to pad:

1. Insert male fittings into female fittings with a twisting motion (figs. 3A and 3B).

2. When fittings are fully inserted, snap locking ring into place (figs. 3C and 3D).

3. To disconnect, simply reverse the procedure.

4. To open or close the hose pinch clamps:

OPERATING INSTRUCTIONS

• Open the clamp by pushing the serrated

end (fig. 3E).

• Close the clamp by pressing the clamp

together (fig. 3F).

NOTE: Refer to figure 1 (p. 2) and

item 9 (p. 6) when connecting multiple pads.

COLDER-STYLE CONNECTORS (on TP500C):

1. To attach Colder-style connectors to a pad, push the male coupling onto the female coupling. When you hear an audible “click”, the connectors are joined (fig. 4A).

2. To disconnect Colder-style connectors, press down on the thumb tab of the female coupling. The couplings will partially disconnect. Pull the male coupling out fully to disconnect (fig. 4B).

Figure 3A–3D—Clik-Tite® Connectors

Figure 3E–3F—Hose Pinch Clamps

Figure 4—Colder-style Connectors

OPERATING INSTRUCTIONS

SERVICE MANUAL

TP500/TP500C T/PUMP

START-UP PROCEDURE

1. Before filling, always attach a T/Pad to the T/Pump connector hose (see figs. 3 and 4, p. 5). Unkink pad and hose. Open hose clamps.

2. Open the fill cap on top of the pump. Fill the pump with room temperature (i.e., not hot) distilled water to the operating level indicated on the side of the pump.

NOTE: Using tap water will decrease the life of the pump.

3. Insert temperature setting key. Set temperature as prescribed by the physician. Remove key to prevent tampering.

4. Plug the pump into a properly grounded outlet.

5. Turn on the power switch. The selected water temperature will be reached in approximately 20 minutes.

6. If the water level drops below the operating level, add water. Do not

overfill. Overfilling can result in reduced pump motor life.

7. Apply T/Pad to the patient. Follow T/Pad instructions.

8. For specified performance, keep the pump at or above the level of the pad.

9. If the pump is placed below the pad(s), water will drain into the pump when it is shut off. If the pump has been overfilled or if multiple pads are connected, excess water can leak out onto the floor or cause reduced motor life.

SHUTDOWN PROCEDURE

1. Turn off pump before disconnecting pad. Close all hose clamps. To prevent water spillage, always disconnect pad from pump with connectors raised above the level of the pad and pump.

2. Connect the T/Pad Clik-Tite connectors together, where applicable.

3. Connect the ends of the T/Pump connector hose together (TP500 only).

SERVICE MANUAL TP500/TP500C T/PUMP

STORAGE / CLEANING

Storage (Short term)

Storage (Long term)

Draining

Cleaning

Disconnect pad. Connect ends of the connector hoses together, where applicable. Open hose clamps. Leave water in the reservoir. To prevent hose kinks, coil the hose rather than folding it. Fasten the hose and cord with strap.

Connect pad. Open hose clamps. Add 1/4 ounce GAYMAR MTA33 germicidal or equivalent to water already in reservoir. Run for two (2) minutes. Drain pump. Close hose clamps. Disconnect pad. To prevent hose kinks, coil the hose rather than folding it. Fasten the hose and cord with strap and store pump.

Unplug the power cord. Disconnect the pad or hoses from one another, keeping hoses at or above the level of the T/Pump. Remove the fill cap and invert the T/Pump over a sink. When all fluid has drained from the hoses and reservoir, replace the fill cap and connect the hoses together, where applicable.

Unplug the power cord.

To clean the external surfaces, use a non-abrasive cleaning solution (such as warm, soapy water) and a damp cloth.

Pads / Accessories

To clean the fluid system, drain the pump. Fill the reservoir to the operating level indicated on the side of the pump. Add 1/4 ounce GAYMAR catalog MTA33 germicidal or equivalent. Set the temperature indicator to its lowest setting (fully counterclockwise). Start the T/Pump and circulate the solution for one hour. Drain the solution and refill the pump with distilled water. Using distilled water retards algae growth and mineral buildup.

Change the distilled water monthly or more often depending upon use.

For best results use only GAYMAR T/Pads® or Mul•T•Pads®. The unique button design allows water to flow and provides trouble free operation when the pad is folded. This reduces the number of different sizes of pads your facility must keep in inventory. The T/Pads can be interconnected (on model TP500 only) to provide therapy to more than one body site at a time (see fig. 1, p. 2). For a brochure listing the various pads, contact the GAYMAR Customer Service Department (see inside cover for telephone numbers).

An optional bed bracket (model TP20A) is available to mount the T/Pump on the footboard of a bed.

THEORY OF OPERATION

SERVICE MANUAL

TP500/TP500C T/PUMP

WATER TEMPERATURE CONTROL

There are four devices that control the operation of the heater in the GAYMAR T/Pump:

• The temperature controller is thermistor actuated (fig. 5, item 1, p. 9).

This controller is adjustable over a temperature range of 85°F to 107°F (29.4°C to 41.7°C). The desired water temperature is set with a special removable key (fig. 5, item 7). To prevent unauthorized temperature setting changes, remove the key after the temperature has been set.

• The manifold backup limit thermostat (fig. 5, item 9) is mounted on the

brass manifold block (fig. 5, item 8). This thermostat senses water temperature flowing to the pad and will shut off the pump and heater and activate the specific limits. The purpose of the manifold backup limit thermostat is to prevent the pump from providing water at too high a temperature to the pad.

• The well backup limit thermostat (fig. 5, item 5) is mounted on the brass

plate (fig. 5, item 11) that extends along and under the heater (fig. 5, item 4) near the bottom of the reservoir. This thermostat senses water temperature in the reservoir and will shut off the pump and heater and activate the specific limits. The purpose of the well backup limit thermostat is to both prevent the pump from providing water at too high a temperature to the pad and to protect the pump from high temperature damage due to a low water level.

OVER TEMP

light if the water temperature exceeds

light if the reservoir temperature exceeds

FLUID SYSTEM

• The tip-over switch (fig. 5, item 2; see also fig. 12, item 64, p. 27) is

mounted on the PC board. This mercury-type switch will shut off the heater if the pump is tipped more than 45° from the vertical position.

NOTE: The tip-over switch does not shut off the pump

motor or activate the

The pump (fig. 5, item 12) is a sump configuration driven by an impedance protected, shaded pole AC motor (fig. 5, item 6).

The return hose fitting (fig. 5, item 10) is machined internally to act as an orifice. This maintains a back pressure in the pad to make it resistant to flow restrictions.

OVER TEMP

light.

SERVICE MANUAL TP500/TP500C T/PUMP

FIGURE 5—T/PUMP COMPONENTS

T/PUMP COMPONENTS

TOP

(wire harness removed for clarity)

BOTTOM

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