PSG Caddy Series User manual

45601A
Printed in Canada 14-02-2019
OPTIONAL OIL UNIT INSTALLATION
(PA03055 or PA03105)
CADDY FURNACE
WARNING: INSTALL THE NOZZLE, ADJUST THE ELECTRODES,
ADJUST PRESSURE ACCORDING TO THE OIL UNIT
MANUFACTURER’S RECOMMENDATIONS.
NOTE: IF A PROBLEM RESULTS FROM IMPROPER INSTALLATION,
NO PRODUCT WARRANTY WILL BE VALID.
Verified and tested for
Canada and the United
States by an accredited
laboratory.
This manual is available for free download on the manufacturer’s
web site. It is a copyrighted document. Resale is strictly prohibited.
The manufacturer may update this manual from time to time and
cannot be responsible for problems, injuries, or damages arising
out of the use of information contained in any manual obtained
from unauthorized sources.
Eco-energy at the hearth
of your home
PSG
250, rue de Copenhague,
St-Augustin-de-Desmaures (Québec)
CANADA G3A 2H3

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Your Caddy furnace can be equipped with an optional oil unit. This option can be installed on
either side of your furnace. It is important to note that the default configuration of your furnace
features the oil unit installed on the right side of your furnace. It is possible to install the oil unit
on the left side but requires additional steps.
Please note that the installation on the furnace is carried out in an identical way for both Beckett
and Riello units. For electrical connections, refer to “Electrical connections” section.
Installation must be performed by a qualified technician.
SECTION 1 - INSTALLATION INSTRUCTIONS
Step 1. Remove the left panel (A) and the right panel (B) of the furnace by removing the screws
that hold them in place (C) (22X). Keep the screws. Discard the panels.

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Step 2. Remove the right and left panels of the blower box (D) by removing the screws that
hold them in place (E) (6X if the blower box wasn’t already installed on the furnace, 18X
if the blower box was already installed on the furnace). Keep the screws.
Note: The duct support assembly location may differ depending on the chosen
configuration when installing the blower box.
Step 3. Remove the deflector (G) inside the furnace by removing the screws (F) (4X) located in
the blower box (two on each side).
Duct
support
assembly

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Step 4. Replace the right and left blower box panels (D) with screws (E) (18X). (Note: If the
blower box wasn’t already installed on the furnace, the missing screws (12X) can be
found in the blower box user’s manual kit).
Note: To install the oil unit on the left side of the furnace, replace Step 5 by the Section
“additional steps for left side installation”. Continue the installation from Step 6.
Step 5. Install the deflector (H) on the oil unit with the screws (I) (4X) provided with it. Then
install the bolts (J) (4X) in the nuts located on the oil unit combustion chamber.

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Step 6. Remove the vision tube cap.
Step 7. Slide the oil unit (R) in the furnace.
Step 8. Use the bolts (F) on each side of the oil unit to have it leveled.

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Step 9. Cut and install the gasket (T) on the left panel (S), the right panel (U) and the air jacket
panels (V) (2X) of the furnace according to the following measurements:

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Step 10. Install the air jacket panels (V) (2X) on the left (S) and right (U) panel with the screws
(W) (8X).
Note: For a left side installation, see “Additional steps for left side installation” for
directions on which sides to install the air jacket panels.
Step 11. Install the left panel (S) on the furnace. Secure it with the screws (C) (11X) removed
from Step 1. Plug the panel holes with the screws provided with the oil unit.

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Step 12. Install the gasket (X) on the oil unit combustion chamber cover. Then install the right
panel (U) with the screws (C) (11X) removed from Step 1.

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Step 13. Install 4 screws (W) on the right side panel to plug the holes.
Step 14. Install the burner (AA).Secure it with washers (Y) (3X) and nuts (Z) (3X) (Beckett unit).

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Install the burner (BB). Secure it with washers (Y) (3X) and nuts (Z) (3X) (Riello unit).
Step 15. Install and secure the sealed vision cap (CC) with the set screw (DD).

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Step 16. Install the certification label (EE)on the air jacket panel.
Step 17. In order to access the power board, remove the filter support assembly (FF) held in
place with screws (GG) (9X), if necessary.

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Step 18. Make the electrical connections according to the “Electrical connections” section
Step 19. Reinstall the filter support assembly (FF) on the blower box with screws (GG) (9X)
previously removed on Step 17.
SECTION 2 - ELECTRICAL CONNECTIONS
BECKETT BURNER
Step 1. Use one cable with two conductors 18 gage (18/2) (not included).

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Step 2. Remove the screw (LL) that holds the power board cover (KK) located in the blower box
(Detail 3) Connect the two wires on the Tw and Tr terminals of the oil unit primary
control and pass them through the middle grommet of the blower box and connect the
wires of the oil unit on the "OIL" terminal on the power board (Detail 4)
To facilitate connections, the use of a junction box is recommended. It can be installed
on the back of the furnace. Use the following diagram for reference. Refer to the wiring
diagram for complete connections.

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RIELLO BURNER
Step 1. Remove the two blowers box knockout (HH) located on both sides of the blower box
(Detail 1). Install a grommet (JJ) or a connector (not included) (Detail 2).
Step 2. Remove the screw (LL) that holds the power board cover (KK) located in the blower
box.

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To facilitate connections, the use of a junction box is recommended. It can be installed on the
back of the furnace. Use the following diagram for reference. Refer to the wiring diagram for
complete connections.

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ADDITIONAL STEPS FOR LEFT SIDE INSTALLATION
Note: Replace Step 5 of the installation by the 4 following steps. When all steps are
completed, continue installation at Step 6.
Step 5.1: Secure the support (K) with the existing screws (L) (2X) located on the top of the
combustion chamber.
Step 5.2: Unscrew the bolts (M) (12X), washers (N) (12X) and nuts (O) (12X) located on the
periphery of the combustion chamber cover. Carefully remove the combustion
chamber cover (P) and the seal (Q). Turn the cover 180° and reinstall it with the seal.
Secure it in place with the bolts, nuts and washers removed earlier.

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Step 5.3: Install the deflector (H) on the oil unit with the screws provided with it (I) (4X). Then
fasten the bolts (J) (4X) to the nuts located on the oil unit combustion chamber.
Step 5.4: Secure air jacket panels (V) (2X) using screws (W) (4X) on both panels (S) and (U).

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Technical data – Oil unit
MODEL BURNER
TYPE
BTU
INPUT NOZZLE FLOW HEAD STATIC PLATE
PRESSURE
AT THE PUMP
H.P. FAN
MOTOR
TUBULATOR
ADJUSTMENT
AIR
ADJUSTMENT EFFICIENCY
UH–
CADDY
BECKETT
AFG 90,000 0.55 X 600W (DELAVAN)
0.55 GAL US/H
(2.08 L/H) L2 YES 140 PSI (965 kPa) 1/3 --- 0/2 85%
UH–
CADDY
RIELLO 40
F3 91,000 0.50 X 700W (DELAVAN)
0.60 GAL US/H
(2.27 L/H) --- --- 150 PSI (1035 kPa) 1/3 1 2.5 87%
BLOCKED VENT SWITCH
A Blocked Vent Switch is mandatory for installation with an oil-fired
appliance that normally operates with its vent system under a negative
pressure. This device is intended to detect a blocked vent system,
responds to hot flue gases backing up through its heat transfer tube,
and can be wired to shut off the oil burner. It requires manual resetting.

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WIRING DIAGRAM – BECKETT BURNER

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WIRING DIAGRAM – RIELLO BURNER