Vulcan-Hart GHF91G ML-135503 manual

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

Go to page of

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Vulcan-Hart GHF91G ML-135503, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

What is an instruction?

The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Vulcan-Hart GHF91G ML-135503 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of Vulcan-Hart GHF91G ML-135503. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of Vulcan-Hart GHF91G ML-135503 should contain:
- informations concerning technical data of Vulcan-Hart GHF91G ML-135503
- name of the manufacturer and a year of construction of the Vulcan-Hart GHF91G ML-135503 item
- rules of operation, control and maintenance of the Vulcan-Hart GHF91G ML-135503 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Vulcan-Hart GHF91G ML-135503 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Vulcan-Hart GHF91G ML-135503, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Vulcan-Hart service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Vulcan-Hart GHF91G ML-135503.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Vulcan-Hart GHF91G ML-135503 item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    – 1 – SERVICE MANUAL GHF SERIES HEAVY DUTY RANGE MATCHING GAS FRYERS & FRYMATES MODELS GHF91G M L-135503 GHF90G M L-135504 - NOTICE - This manual is prepared for the use of trained Vulcan Service Technicians and should not be used by those not properly qualified. If you have attended a Vulcan Service School for this product, you may be qual[...]

  • Page 2

    – 2 – © VULCAN-HART, 2004 TABLE OF CONTENTS GENERAL .............................................................................................................................................................. 3 Introduction .......................................................................................................................[...]

  • Page 3

    – 3 – INTRODUCTION Models This service manual was written for: GHF91G Gas Fryers and GHF90G Gas Frymates. INSTALLATION Generally, installations are made by the dealer or contracted by the dealer or owner. Detailed installation instructions are included in the Installation and Operation Manual, which is sent with each fryer. OIL FILTERING Filter[...]

  • Page 4

    – 4 – COVERS AND PANELS WARNING: SHUT OFF THE GAS BEFORE SERVICING. Door 1. Open door and using a 5 / 16 " wrench or ratchet, remove (2) screws securing the top door mounting bracket to the left body side channel. 2. Hold door in one hand and lift the door panel assembly off of the bottom hinge. 3. Reverse this procedure to reinstall the d[...]

  • Page 5

    – 5 – THERMOSTAT WARNING: SHUT OFF THE GAS BEFORE SERVICING. 1. Drain shortening from fry tank. 2. Remove left burner as outlined under Burners. 3. Remove thermostat knob by pulling knob off thermostat shaft. 4. Remove thermostat mounting screws and remove thermostat from mounting bracket. 5. Remove wire leads from the rear of the thermostat, n[...]

  • Page 6

    – 6 – 7. Pull the high limit bulb through the underside of the fry tank and remove the high limit assembly. 8. Reverse the procedure to install. When installing the new high limit assembly, do not kink the high limit capillary. Wrap threads of packing nut with Teflon tape to prevent leakage. THERMOPILE WARNING: SHUT OFF THE GAS BEFORE SERVICING[...]

  • Page 7

    – 7 – 6. Remove thermopile from pilot bracket. 7. Reverse procedure to install. PILOT ORIFICE WARNING: SHUT OFF THE GAS BEFORE SERVICING. WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS. CHECK WITH SOAP AND WATER SOLUTION (BUBBLES). DO NOT USE AN OPEN FLAME. 1. Remove pilot assembly from fryer as outlined under ther[...]

  • Page 8

    – 8 – FRY TANK WARNING: SHUT OFF THE GAS BEFORE SERVICING. WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS. CHECK WITH SOAP AND WATER SOLUTION (BUBBLES). DO NOT USE AN OPEN FLAME. 1. Disconnect fryer from main gas supply. 2. Drain oil from tank. 3. Remove baskets, fryer basket hanger and crumb screen. 4. Remove scre[...]

  • Page 9

    – 9 – SERVICE PROCEDURES AND ADJUSTMENTS MILLIVOLT CONTROLS TEST 1. Verify proper gas (natural or propane) is present. 2 . Check for correct wiring and secure connections. 3. Verify the pilot flame is adjusted properly as outlined in Pilot Adjustment. 4. If the pilot is not lit, light pilot as outlined under Lighting Pilot. Allow the pilot to b[...]

  • Page 10

    – 10 – 5. Allow temperature to stabilize at new setting and compare temperature tester to dial setting. Recalibrate if the temperature does not fall within the range of 330°F to 370°F. 6. If the temperature does not fall within the limits at both settings, replace the thermostat. PILOT ADJUSTMENT 1. Light pilot as outlined under Lighting Pilo[...]

  • Page 11

    – 11 – 3. Turn on the gas and light the pilot as outlined under Lighting Pilot in General. 4. Turn the combination valve to ON. 5. Set the thermostat so the burners will come on. 6. Read the pressure gauge. The manifold pressure reading should match the pressure rating on the data plate. A . To adjust, remove the cap covering the manifold press[...]

  • Page 12

    – 12 – 3. Total Shutdown. A . When the high limit trips, 0.0 millivolts will read across both coils of the combination valve, causing both valves to close. B . Pilot relight cannot be accomplished until oil cools sufficiently to allow high limit to close. C . If any wire in the system is cut or broken, the system will shut down. SYSTEM CONDITIO[...]

  • Page 13

    – 13 – SCHEMATIC COMPONENT FUNCTION Thermostat - Millivolt type with capillary bulb, single-throw break on temperature rise. Temperature range of 200°F to 400°F. Thermopile - Millivolt control with 24" capillary. Rated to generate 500 millivolts. Combination Valve - Regulates gas flow to burner and pilot. Provides pilot safety. Hi-Limit [...]

  • Page 14

    – 14 – TROUBLESHOOTING SYMPTOM 1 . The temperature of the shortening drops, or excessive recovery time is required. POSSIBLE CAUSE A . Insufficient gas supply to unit. B . Ventilating system pulling heat out of heat exchanger and flue box. C . Overloading fryer capacity. A . Malfunctioning thermopile or loose/dirty connection in thermopile. B .[...]

  • Page 15

    – 15 – SYMPTOM 4. Leaking tank. TROUBLESHOOTING POSSIBLE CAUSE A. Foam-over by depleted shortening permits oil to drip from the tank surface, giving the appearance of leaking. B . Careless draining procedures. Gas valve should be in the PILOT or OFF position before draining oil. Burners heating an empty tank will damage tank joints. C . Carbon [...]

  • Page 16

    – 16 – FORM 35618 (11-04) PRINTED IN U.S.A. NOTES[...]