Thermador An American Icon PH30ZS User manual

Service Manual
for
PROFESSIONAL WALL HOODS
PH30ZS, PH36ZS, PH42ZS,
PH48ZS, PH54ZS
¨
Blower Requirements: VTN1000Q, VTR600R, VTR1000R, VTR1400Q
Halogen Lamps ......................................................... 1
Infra Red Heat Lamps ............................................. 2
Filters.......................................................................... 3
Step Down Transformer ........................................ 4
Main Relay Board ..................................................... 5
Input Board ............................................................... 6
Heat Sensor .............................................................. 7
Control Panel ........................................................... 8
Cleaning Instructions .............................................. 9
Disassembly ............................................................ 10
Stainless Steel Parts .............................................. 11
Transformer Panel Removal................................ 12
Input Board Removal ............................................ 13
Thermador Hood Warranty .............................. 14
Wiring Diagram ...................... Inside Front Cover
CONTENTS
© 2003 BSH Home Appliances, Corp.

Wiring Diagram

PHZ Service Manual
PAGE 1
LIGHTS
NOTE: Turn off the lights and fan. Allow the lights
to cool before handling. If new lights do not opera-
te, be sure lights are inserted correctly before calling
service.
Figure 3
Halogen Light Replacement
• Using a flat edge from a screwdriver or equivalent
tool, pry loose the lens cover as shown in Figure
3.
• Remove the damaged light and r eplace with a
new 12 Volt, 20 Watt (maximum) halogen light
made for a G-4 base. Follow package directions
and do not touch new light with bare hands.
• Reinstall the light and cover.
HALOGEN LAMPS
The halogen lamp assemblies are 12 volt, 20 watt halogen bulbs. There are two light settings; normal, and dim.
These two settings are controlled by the step down transformer
Serviceable Component

PHZ Service Manual
PAGE 2
Infra Red Heat Lamps
The infra red heat lamps are 120 v.a.c. 175 or 250 watt lamps.
• Turn heat lamp counterclockwise to remove.
• Replace lamp with either a PAR-38 175W heat
lamp or a PAR-40 250W heat lamp.
The PAR-38 175W heat lamp provides a tighter seal
within the enclosure and produces the same amount
of effective heat with lo wer energy consumption.
These lamps may not be readily available at local retail
outlets. The PAR-40 250W heat lamp is r eadily
available at local retail outlets.
To order PAR-38 175 heat lamps with a credit card,
phone:
• OpTechInc. 800-848-6624 or
• www.bulbs.com 888-455-2800
Caution
DO NOT TOUCH THE BULBS
IMMEDIATELY AFTER USE.
THE BULBS
WILL REMAIN HOT FOR SEVERAL
MINUTES. DO NOT PLACE HIGHLY
FLAMMABLE MATERIAL ON WARM-
ING SHELVES.
Serviceable Component

PHZ Service Manual
PAGE 3
FILTERS
The metal gr ease filters ar e made of anodized
aluminum and are long lasting.
To Remove The Metal Grease Filters
• Turn the fan and lights off.
• Allow filters to cool before removal.
• In the following order remove the baffle filters,
trims, and grease troughs.
• To remove filters, push up then pull do wn as
shown in Figure 2.
Filters
Serviceable Component
➠
➠
➠
➠
®

PHZ Service Manual
PAGE 4
Step Down Transformer
The step down transformer is a multiple tap 120 v.a.c. step down transformer. one tap outputs 12 v.a.c. for
regular lights, and the other tap outputs 9.6 v.a.c.when the dim light is selected.
Serviceable Component

PHZ Service Manual
PAGE 5
Main Relay Board
The main relay board is a microproccessor based printed circuit board. The relay board has specific relays to
activate the components in the hood. The relay board reacts to input and commands from the input board.
Serviceable Component

PHZ Service Manual
PAGE 6
Input Board
The input board serves as a selector switch. the mode
is selected on the input board buttons. The input board
sends the commands to the r elay board. The relay
board and the input boar d communicate through a
ribbon connector.
Serviceable Component

PHZ Service Manual
PAGE 7
Serviceable Component
The PHZ hood is equipped with a heat sensor
that is located inside the input boar d. It is not
visible or field replaceable. The entire input board
must be replaced. The sensor detects over tem-
perature conditions and turns the fan on to
protect the components. The sensor is set to
activate at 165ºF (75ºC) and r eset at 140ºF
(60ºC).
Here’s how it works when the
sensor detects excessive heat:
1) If the ventilator is “off,” the ventilator will turn
on at low speed and the corresponding LED will
blink.
2) If the v entilator is “on” at an y speed, the
corresponding LED will blink. No speed change
will occur.
While the sensor is activated due
to excessive heat:
1) The ventilator speed can be changed or turned
off and the corresponding LED will blink.
2) All lights will remain operational.
3) When the sensor r esets back to 140ºF , the
control will continue to operate at the existing
setting though the LED will stop blinking,
indicating there is no longer an over temperatu-
re condition.
Fault code:
The circuit is equipped with an alarm indicating
that the heat sensor pr otection is not working
due to a damaged sensor. In this case, the three
speed indicator LED’s will start blinking.
Heat Sensor

PHZ Service Manual
PAGE 8
Operating Instructions
The blower should be turned on for about 5 minutes
before cooking in or der to establish air cur rents
upward through the hood. Thus when heat, smoke,
moisture, grease and cooking odors ar e produced,
they will be car ried outside instead of drifting into
Hood Operating Instructions
other rooms. Use the lo w speeds for normal use
and the higher speeds for strong odors or fumes.
Drafts across the range or cooktop will reduce the
effectiveness of the hood. Such drafts should be
prevented when possible.
1
2
3
OFF BUTTON – Pressing button once turns
ventilator off and resets control.
FAN SPEED BUTTON – Pressing button once,
from an off state , turns the ventilator on low.
Each successive press of the button incr eases
the fan speed until high wher e the fan cycles
back to the low speed.
• The LEDs abo ve this button indicate the
current fan speed. When the fan is on, the
corresponding LED is illuminated.
1 – Low
2 – Medium
3 – High
DELAY SHUT OFF BUTTON –
• Press to turn fan on high for 10 minutes.
If the ventilator is off when the delay button is
pressed, the ventilator will turn on to the high
speed setting for 10 minutes. At the end of the
cycle the ventilator will turn off.
If the ventilator is on when the delay button is
pressed, the ventilator runs for 10 minutes at
the current speed then turns off.
• During a timed period, the LED above the
Delay Shut Off button is illuminated.
4
5
6
• To interrupt a timed period, press Fan Speed
or Off button.
CLEAN FILTER REMINDER – After 40 hours
of operation the clean filter reminder LED above
this button will illuminate indicating that the
filters need to be cleaned. Pressing this button
for 3 seconds r esets the 40-hour period and
turns the LED off.
LIGHT On/Dim/Off – This button controls the
halogen lighting. The first press turns the lights
on. A second pr ess dims the lights. A third
press turns the lights off.
HEAT LAMP BUTTONS – The buttons marked
“L” and “R” independently control the left and
right infrared heating lamps, turning the lights
on or off.
®
OFF FAN
SPEED DELAY
SHUT OFF FILTER LIGHT HEAT LAMPS
LR
12 3
2 3 4 5 61
CONTROL PANEL

PHZ Service Manual
PAGE 9
Be sure lights are cool before cleaning the hood.
To Clean Filters
•When the filter reminder illuminates, the filters
and grease troughs should be cleaned. When used
over a grill, more frequent cleaning may be
required.
•The filters can be washed b y hand or in the
dishwasher.
To Clean Hood Surface
• For general care, wipe the outside of the stainless
steel with sudsy water or household cleaners
such as Fantastic® or Formula 409®. Rinse well
and dry with clean soft cloth to a void water
marks.
• Wipe and dry brushed stainless steel in the same
direction as the grain.
• Do not use abrasive products.
• To remove finger prints and give added shine use
spray cleaners such as Stainless Steel Magic
® and
Shimmer®.
Cleaning Instructions
FILTERS
➠
➠
➠
➠
®
Cleaning Instructions

PHZ Service Manual
PAGE 10
The halogen lights and infra r ed
lights are mounted on the light
panel.
To drop light panel, and
gain access to
components;
1) Remove 3 scr ews as illus-
trated and dr op the light
panel.
Disassembly
➞
➞
➞
Disassembly

PHZ Service Manual
PAGE 11
Stainless Steel Parts
The stainless st5eel par ts
illustrated below are field
replaceable.
Inside Panel
➞
➞
Spacer
Light Panel
➞
Grease Trough
➞
Grease Trough
➞
➞
Top Trim
➞
Filters
➞
Spacer
➞
Inside Panel
Replaceable Stainless Steel Parts

PHZ Service Manual
PAGE 12
To remove the transformer panel and
gain access to these components;
1) Lower the light panel.
2) Remove 4 screws that attach the transf ormer
panel to the sides of the hood. (see illustration).
The step down transformer, electronic control and wire harness are mounted on the transformer panel.
Transformer Panel Removal
➞
➞
➞
Transformer Panel
Step Down
Transformer
Electronic
Control
Transformer Panel Removal

PHZ Service Manual
PAGE 13
The input board is mounted on the inside of the hood.
To remove the input board:
1) Remove light panel.
2) Remove (4) number 9 hex head nuts that attach the input board to the hood. (see illustration),
Input Board Removal
Input Board
➞
Input Board Removal

PHZ Service Manual
5551 McFadden Avenue, Huntington Beach, CA 92649 • 800/735-4328
ECO 91954 • 5060008316 Rev. A • © 2003 BSH Home Appliances, Corp. • Litho in U. S. A. 1/03
¨
THERMADOR HOOD WARRANTY
FULL ONE YEAR WARRANTY
Covers one year from date of installation, or date of occupancy on a new, or previously unoccupied dwelling.
Save your dated receipt or other evidence of installation/ occupancy date.
Thermador Will Pay For:
All repair labor and replacement parts found to be defective due to materials and workmanship.
Service must be provided by a Factor y Authorized Service Agency, during normal w orking hours. For a
Service Agency nearest you, please call 800/735-4328.
Thermador Will Not Pay For:
I. Service by an unauthorized agency Damage or repairs due to service by an unauthorized agency or the
use of unauthorized parts.
2. Service visits to:
• Teach you how to use the appliance.
• Correct defects or repairs due to improper installation. You are responsible for providing electrical
wiring and other connecting facilities.
• Reset circuit breakers or replace home fuses.
• Damage caused from accident, alteration, misuse, abuse, improper installation or installation not in
accordance with local electrical codes or plumbing codes, or improper storage of the appliance.
• Service labor during limited warranty period.
• Travel fees and associated charges incurred when the product is installed in a location with limited or
restricted access. (i.e., airplane flights, ferry charges, isolated geographic regions).
• Repairs due to other than normal home use.
This warranty applies to appliances used in residential applications; it does not cover their use in commercial
installations.
The warranty is for products purchased and retained in the 50 states of the U. S. A., the District of Columbia
and Canada. Should the a ppliance be sold b y the original pur chaser during the war ranty period, the new
owner continues to be protected until the expiration date of the original purchaser’s warranty period. Products
for use in Canada must be purchased through the Canadian distribution channel to ensure regulatory compliance
and warranty coverage
This warranty gives you specific legal rights. You may also have other rights which vary from state to state.
HOW TO OBTAIN SERVICE
• Contact the Factory Authorized Service Agent in your area.
• Contact the Dealership where you purchased the appliance.
• Call the Thermador Customer Support Call Center at 800-735-4328.
• Write us to at:Thermador 5551 McFadden Avenue, Huntington Beach CA, 92649.
PAGE 14