turbofan E85HLD User manual

E85HLD PROVER
/ HOLDING CABINET
INSTALLATION / OPERATION
MANUAL
F22791-8

MANUFACTURED BY
Moffat Limited
PO Box 10001
Christchurch
New Zealand
Ph: [phone]
Fax: [phone]
WORLD-WIDE BRANCHES
UNITED KINGDOM
Blue Seal
Units 6-7, Mount Street Business Park
Mount Street, Nechells
Birmingham B7 5QU
Ph: [phone]
Fax: [phone]
UNITED STATES
Moffat Inc
3765 Champion Blvd
Winston-Salem
North Carolina 27115
Ph: [phone]
Fax: [phone]
CANADA
Serve Canada
22 Ashwarren Road
Downview
Ontario M3J1Z5
Toll Free:800 263 1455
Ph: [phone]
Fax: [phone]
[email protected]
www.servecanada.com
www.moffat.com
NEW ZEALAND
Christchurch Auckland
Moffat Limited Moffat Limited
PO Box 10-001 4 Waipuna Road
16 Osborne Street Mt Wellington
Christchurch Auckland
Ph: [phone] Ph: [phone]
Fax: [phone] Fax: [phone]
AUSTRALIA
Victoria New South Wales
Moffat Pty Limited Moffat Pty Limited
740 Springvale Road 3/142 James Ruse Drive, Rose Hill
Mulgrave, Melbourne PO Box 913, Smithfield
Victoria 3171 Sydney, N.S.W. 2142
Ph: [phone] Ph: [phone]
Fax: [phone] Fax: [phone]
Western Australia Queensland
Moffat Pty Limited Moffat Pty Limited
67 Howe Street 30 Prosperity Place
Osbourne Park Geebung, Brisbane
WA 6017 Queensland 4034
Ph: [phone] Ph: [phone]
Fax: [phone] Fax [phone]
The reproduction or copying of any part of this manual by any means whatsoever is strictly forbidden unless authorized previously in
writing by the manufacturer.
In line with policy to continually develop and improve its products, Moffat Ltd. reserves the right to change the specifications and
design without prior notice.
© Copyright Moffat Ltd. November 2006.

Introduction ........................................................................................................2
Installation ..........................................................................................................3
Before Connection
Location
Electrical Connection
Water Connection (Auto Fill Models Only)
Rack Width
Stacking with Convection Oven
Specifications.....................................................................................................5
Operation............................................................................................................9
Description of Controls
Condensation Channel
Operating in PROVE Mode
Bake-Off
Problem Solving
Hints
Operating in HOLD Mode
Cleaning and Maintenance..............................................................................13
Trouble Shooting .............................................................................................14
Spare Parts.......................................................................................................15
Circuit Schematics...........................................................................................16
E85-HLD Prover / Holding Cabinet (Manual Fill)
E85A-HLD Prover / Holding Cabinet (Auto Fill)
Date Purchased................................................................. Serial No ..........................................................
Dealer............................................................................................................................................................
Service Agent ................................................................................................................................................
Contents
1

We are confident that you will be delighted with your E85HLD PROVER / HOLDING CABINET, and it will
become a most valued appliance in your commercial kitchen.
A new oven can seem very complex and confusing at first glance. To ensure you receive the utmost
benefit from your new Prover, there are two important things you can do.
Firstly
Please read the instruction book carefully and follow the directions given. The time taken will be well
spent.
Secondly
If you are unsure of any aspect of the installation, instructions or performance of your prover, contact your
E85HLD dealer promptly. In many cases a phone call could answer your question.
Introduction
2

Before Connection to Power Supply
• Remove all packing.
• Check equipment and parts for damage. Report any damage immediately to the carrier and
distributor.
• Remove protective plastic coating from the side panels.
• Check that the available power supply is correct to that shown on the rating plate located on the
right-hand side panel.
E85HLD 110-120 Volts A.C, 60 Hz, 1P+N+E, 1.65 kW, 14.5 A
E85HLD 220-240 Volts A.C, 50 Hz, 1P+N+E, 1.65 kW, 7.2 A
Location
• To ensure correct ventilation for the motor and controls the following minimum installation
clearances are to be adhered to:
Electrical Connection
• E85HLD provers are supplied fitted with cords. Ensure unit is fitted with correct cord and plug.
• To access the electrical connection terminal block, grounding lug and strain relief, remove the
right hand side panel.
WARNING - THIS APPLIANCE MUST BE EARTHED / GROUNDED
Water Connection (Auto Fill Models Only)
• A cold water supply should be fitted to the water inlet (¾” BSP connection) which is located near
the rear of the right hand side of the unit.
• Alternately, a connection elbow and sealing washer is supplied with this unit for direct connection
of a ½” ID hose, and is recommended for easy installation and service.
• Connect water supply - Max inlet pressure 80psi / 550kPa.
• Turn on water supply to check for leaks.
Rack Width
• The E85HLD prover has been designed to accept either 18”
or 16” wide trays.
• The prover comes factory set for 18” trays, to change to 16”
trays:
• Remove the RH side rack (lift and extract).
• Undo the thumb screws (A) holding the RH rack
supports (B) and turn RH rack supports around, then
re-secure with thumbscrew.
3
Installation
Installation Requirements
It is most important that this prover / holding cabinet is installed correctly and that
operation is correct before use.
Installation shall comply with local electrical, health and safety requirements.
Rear 0 mm / 0 ”
Left-hand side 0 mm / 0 ”
Right-hand side 25 mm / 1 ”
A
A
A
A
B
B
B
B
For 18” trays For 16” trays

Stacking with Convection Oven
• The E85HLD prover is supplied standard with a top lid for stand alone use.
• Optionally, the E85HLD prover can be combined underneath a MOFFAT E35 convection oven as
a complete unit. For this a stacking kit is required (part number 022299).
• For installation of the stacking kit, refer to the instructions provided with the kit. These instructions
also include the procedure for mounting the E35 convection oven on top of the E85HLD prover
and stacking kit.
Installation
4

250
150
902
880
ELECTRICAL ENTRY
WATER ENTRY
MWS
E
1
880
MWS
E
1
MWS
40
E
1
5
Specifications
Electrical Connection 110-120 Volts A.C, 60 Hz, 1P+N+E, 1.65 kW, 14.5 A
220-240 Volts A.C, 60Hz, 1P+N+E, 1.65kW, 7.2A
Cold Water Connection
(Auto Fill Models Only)
¾” B.S.P. or 1/2ID hose (550kPa / 80psi maximum pressure)
E85-8HLD Prover
Side
Front
Plan

250
150
1145
WATER ENTRY
ELECTRICAL ENTRY
E
1
MWS
880
E
1
MWS
880
40
E
1
6
Specifications
E85-12HLD Prover
Electrical Connection 110-120 Volts A.C, 60 Hz, 1P+N+E, 1.65 kW, 14.5 A
Cold Water Connection
(Auto Fill Models Only)
¾” B.S.P. or 1/2ID hose (550kPa / 80psi maximum pressure)
Side
Front
Plan

E
3
40
MWS
880 (26" Ovens)
800
980 (30" Ovens)
E
1
880
E
3
MWS
1006.5 100
WATER ENTRY
ELECTRICAL ENTRY
3E
MWS
ELECTRICAL ENTRY
150
E
1
1753
902
7
Specifications
E85-8HLD Prover / E35 Oven
Side
Front
Plan

E
3MWS
40
E
1
880
E
3
MWS
1001250
ELECTRICAL ENTRY
WATER ENTRY
3E
MWS
150
E
1
ELECTRICAL ENTRY
1145
2000
880 (26" Ovens)
800
980 (30" Ovens)
8
Specifications
E85-12HLD Prover / E35 Oven
Side
Front
Plan

Operation Guide
9
Operation
Function
O Unit is off
PROOF Unit is in proving mode (indicator illuminates)
HOLD Unit is in holding mode (indicator illuminates)
Thermostat
Temperature range 0 - 80°C.
Indicator illuminates when the elements are cycling ON
to maintain set temperature.
(Controls the cabinet air temperature)
Humidity Control
LO - Setting for butter based pastries (croissants, Danish
pastries etc.)
MED/HI - Setting for yeast based breads and doughs.
Indicator illuminates when elements are cycling ON to
maintain set temperature.
(Controls the cabinet humidity in PROOF mode only)
Thermometer
Dual Centigrade and Fahrenheit scale.
Indicates cabinet temperature.
Condensation channel
There is a condensation channel below the proofer door for
the purpose of collecting door condensation run-off.
A diameter 12.7mm (½”) drain outlet is provided in the centre
of this channel and is factory fitted with a drain bung. The
drain facility can be used in three ways:
• Remove the bung when emptying is required and drain
into collection vessel. Refit bung until next drainage.
• Place a suitable collection vessel or pan on the floor
below the drain outlet and remove bung permanently for
continual draining. Empty collection vessel or pan as
required.
• Remove the bung and connect a 12.7mm (½”) I.D. hose
or similar to drain outlet and route hose to permanent
drainage.
Description of Controls
85

Operation
10
Operating in PROOF Mode
Ensure that power is supplied to the unit and the water trough is filled
It is recommended that the prover operates empty before loading with product
- Warm days up to 10 minutes - Cool days up to 30 minutes
1. Ensure water tank is filled with water
Standard models: Open the prover door and fill the water tank located at the front of the right
hand side rack. The tank should be filled to 20mm (¾”) from the top of the tank.
Remember to top up the water tank when the water level is below the halfway level in the
tank (before the heating element is exposed).
Auto fill models: Check the water tank is full and that the heating element is well covered.
2. Set function to PROOF
Indicator light will illuminate when the switch is in the “PROOF” position.
3. Set thermostat to desired proving temperature
Indicator light will illuminate when the elements are cycling on to maintain set temperature.
25-30°C Butter based pastries
35-40°C Yeast based breads and doughs
4. Set humidity to desired level
Indicator light will illuminate whenever elements are cycling on to maintain set humidity.
As a guide;
Set humidity to between ‘LO’ and MED’ marks on control panel as a general rule.
Increase or decrease as found necessary for specific product types.
Humidity is required only to avoid product dry skinning on surface. Do not set humidity
such that product becomes sticky and wet on surface. A silky to touch surface on the
product is a general recommendation for correct humidity levels.
Avoid excess humidity levels as this will also create excess condensation in the cabinet
interior.
Note: Butter based product require much less humidity than breads.
Bake-Off
This prover has been designed for use together with a refrigerator and oven to take frozen uncooked
yeast or butter based products to finished cooked products.
1. Prepare product
Arrange frozen products onto baking trays.
2. Thaw
Refrigerate at 4°C overnight. Do not leave standing at room temperature or product may dry out.
3. Prove
Place thawed products directly from the refrigerator into the pre-heated prover. Prove for 30-60
minutes dependant on product and food proving recommendations.
4. Bake
Place proved product directly from the prover into the pre-heated oven. We recommend the
Moffat E35 Turbofan Oven.

11
Operation
Problem Solving
Product collapses
When using frozen dough which collapses or shrinks in the oven after proving, this is caused by too
much proving. Reduce the proving time for the next batch.
Dry product
The dough piece in the prover should never be dry to the touch. A moist, firm and silky membrane
should cover the dough piece during proving.
Wet product
The dough piece in the prover should not be wet to touch whilst proving and should not adhere to
fingers. Water should not condense on the trays. If it does there is either too much moisture or too
little heat in the prover.
If there are any problems with your dough the most likely causes are as follows:
• Too much heat and too little moisture.
• Not enough heat and too much moisture.
• Proving time too long or too short.
• Incorrect oven temperature.
• Incorrect maturity adjustment in the formulation of the dough for the flour.
• Incorrect thawing procedure, or handling of the dough after thawing.
Hints
Heat
It is better to operate the prover at a lower temperature with adequate moisture rather than at a
hotter temperature with too little moisture.
Yeast
Yeast activity starts very slowly at about 5°C and increase in speed or gas production as the
temperature rises. When a temperature of approximately 60°C is reached, the yeast is killed and
baking of the aerated product starts. Thus different rates of proving occur as the temperature
changes.
Flour
The amount of proving required is determined by the quality of the GLUTEN in the flour. Gluten is
a rubber like product and can perish if stretched too far by too much proving. Collapsing of the
product or shrinkage will occur.
Proof
You must recognise the proof of the product by the appearance of the dough rather than the size.

12
Operation
Operating in HOLD Mode
Ensure that power is supplied to the unit and the water trough is filled
It is recommended that the cabinet operates empty before loading with product
- Warm days up to 10 minutes - Cool days up to 30 minutes
1. Set function to HOLD
Indicator light will illuminate when the switch is in the “HOLD” position.
2. Set thermostat to desired holding temperature
Indicator light will illuminate when the elements are cycling on to maintain set temperature.
3. Humidity
The humidity is not used in HOLD mode. The setting on this dial will have no effect as the
wet element is disabled.
4. Thermometer
The thermometer gives an accurate reading of the cabinet temperature to ensure that the
product being held is at the correct temperature.

Cleaning
13
Cabinet
Clean with a good quality stainless steel cleaning compound. Harsh abrasive cleaners may damage
the surface.
Side racks
To remove, take hold of the centre rung and lift upwards to disengage the rack key-holes from the
hanger studs. To replace, hold horizontally, engage keyholes onto studs and push down.
Door
Wash with warm water and detergent solution using a soft sponge in straight lines up and down the
door. Rinse with clean, warm water and dry off.
Water tank
Remove the RH side rack and remove tank by lifting off its hanger studs. Clean with warm soapy
water. Rinse thoroughly and refit.
Water tank element
When the element becomes limed/scaled remove the water trough and clean. Replace water trough
and half fill with white vinegar or acetic acid, then fill to the normal level with water. Switch the unit on,
turn the humidity to HI and operate for approximately 30 minutes. Remove trough and clean the
element with a damp cloth when cooled. Rinse out the through and refit to unit.
This procedure is recommended to be carried out once a week. Frequency of cleaning the element
may be increased or decreased depending on the lime depositing on the element.
Caution:
ALWAYS TURN OFF THE POWER SUPPLY BEFORE CLEANING.
THIS UNIT IS NOT WATER PROOF.
DO NOT USE WATER JET SPRAY TO CLEAN INTERIOR OR EXTERIOR OF THIS UNIT.
Cleaning Guidelines

14
Trouble-shooting
Fault Possible Cause Remedy
The prover does not operate /
start.
The mains isolating switch on the
wall, circuit breaker or fuses are
“off” at the power board.
The power switch on the cabinet
is off.
Turn on.
Rotate switch. Indicator will
illuminate.
No humidity. Unit is in HOLD mode
No water in trough.
Switch unit to PROOF mode.
(Humidity is only generated in
PROOF mode).
Fill with water.
Slow recovery. Overloading of cabinet.
Door opened unnecessarily.
Reduce batch size.
Do not open unnecessarily.
Door does not close. Tray in way of door. Correctly position tray in rack.

15
Spare parts
Replacement Part List
Controls
022789 Switch - Function
020823 Knob - Power
022787 Thermostat (Temperature)
015485 Thermostat (Humidity)
020823 Knob - Temperature Thermostat
021472 Knob - Humidity Thermostat
020849 Neon Indicator
022788 Thermometer
Auto Fill Option
020851 Solenoid Valve
021534 Relay
022250 Float Switch
Motor & Elements
022042 Fan
025387 Motor
021694 Dry Element
021696 Wet Element
Door
021434 Door Assembly - 8 Tray Unit
021436 Door Assembly - 12 Tray Unit
021468 Handle
021663 Hinge
018947 Magnetic Catch
Racks
021416 Side Rack - 8 Tray Unit
021417 Side Rack - 12 Tray Unit

Circuit schematic
16
E85 Prover / Holding Cabinet - Manual Fill

E85A Prover / Holding Cabinet - Auto Fill
Circuit Schematic
17