turbofan 30D Series Service Manual

Fault Finding
9
ELEMENT RESISTANCE & CURRENT
Model Watts Voltage Resistance ± 5% @20
o
C (68
o
F) Current ± 5%
110 — 120V 21 Ω 5.4A @ 120V
P8/P10/P12 Water 650W
P
8 / P10 Dry 700W 110 — 120V 20 Ω 5.8A @ 120V
P12 Dry 1200W 110 — 120V 11 Ω 10A @ 120V
COMPONENT TESTING
ITEM CONDITION TESTING FOR REPLACE
Function Switch Proofer power OFF Continuity through switch when turned on If open circuit
Voltage at Switch Check power to switch and power out of switch If no power out
Proofer power OFF Continuity through thermostat If open circuit
Voltage at Thermostat Check power to switch and power out of switch If no power out
Water Thermostat
(set above Proofer Humidity)
Proofer power OFF Continuity through switch If open circuit
Voltage at Thermostat Check power to switch and power out of switch If no power out
Element Proofer power OFF Continuity If open circuit
Voltage at Element Check current draw If low or zero
Relay Voltage at Relay Coil Does relay switch If no
Relay Contacts Voltage at Relay Contacts Check power to contacts and power out of contacts If no power out
Fan Motor Voltage at Fan Does fan rotate If no
Float Switch Proofer power OFF Continuity through switch when float is down If open circuit
Air Temperature Thermostat
(set above Proofer
Temperature)
Voltage at Switch Contacts Check power to switch and power out of switch If no power out
Water Solenoid Voltage at Solenoid Solenoid opens If no

turbofan 30D Series Specifications

General

Brand	turbofan
Model	30D Series
Category	Commercial Food Equipment
Language	English