Replacement Manifold Solenoid - Bosch ACS 561 Repair Instructions

A/c service unit
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Plumbing and Mechanical

Replacement Manifold Solenoid

Disconnect the unit from the power
source before beginning service
work. Incorrect use or connections
can cause electrical shock.
Wear safety goggles when working
with refrigerants. Refrigerants can
cause eye injury.
Use extreme caution when discon-
necting hoses. Pressurized refriger-
ant may be present in hoses. Point
hoses away from you and anyone
nearby.
Instructions
These instructions outline the steps to replace
any existing manifold solenoid , including the In-
jector Manifold Assembly (not illustrated here).
Removing a Manifold Solenoid
1. Disconnect the unit from the power source.
2. Remove the shroud and close tank valve.
3. Depressurize the unit.
4. Disconnect the two wires connected to the
solenoid being replaced.
SP00D00517
2018-07-11
5. Remove the fastener holding the coil on the
solenoid, and remove the coil.
6. Remove the solenoid assembly from the
manifold block.
7. Check the manifold block for any debris
before installing a new solenoid.
Installing a Replacement Manifold Sole-
noid
1. Lubricate the o-rings and threads on the new
solenoid assembly.
2. Install the new solenoid assembly onto the
main block and hand tighten.
3. Using a torque wrench, tighten the solenoid
assembly to a torque of 8-9 Nm (70-89 in-
lbs).
4. Install the new coil on the new solenoid as-
sembly, and secure with the fastener holding
the coil in place.
5. Using a torque wrench, tighten the coil
retaining bolt to a torque of 3-4 Nm (25-35
in-lbs).
6. Reconnect the wires that were disconnected
when removing the old solenoid assembly.
7. Plug unit into power source, open tank
valve, perform a function test, and check
for any leaks.
8. Replace the shrouding.
70
ACS 561 Service Manual
Robert Bosch GmbH

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