RAMVAC BISON - Bison Models 1 Phase Electrols Upgrade; Upgrade Gray Box Electrols to S1 (1 Phase Bison)

1 Phase Gray Box Electrols Upgrade
How to upgrade gray box Electrols to S1 Electrols on
1 phase Bison models.
1. Secure Disconnect.
2. Remove items from gray box Electrols.
a. Disconnect power source wires from L1, L2, and GND. Remove
cord grip and power source wires from gray box Electrols.
b. Disconnect motor wires from 2T1, 4T2, and motor ground.
Remove cord grip and motor wires from gray box Electrols.
c. Disconnect moisture alarm probe wires from P1 and P2. Remove
wires from cord grip.
d. Remove remote switch wires from R1, R2, and RL. Remove wires
from cord grip.
3. Discard gray box Electrols.
4. Install S1 Electrols using the 4 mounting holes.
5. Remove the cover screws and cover.
Note: There will be 2 wires under L1 screw and 2 wires under
GND screw.
6. Install cord grip and power source wires in side knockout on S1 Electrols.
a. Connect power wires to L1, L2, and Gnd.
7. Install cord grip and motor wires to bottom knockout on S1 Electrols
a. Connect motor wires to L1, M1, and Gnd.
8. Install cover using the screws previously removed.
9. Disconnect oil switch and water switch (2 spade terminals)
from moisture alarm cord.
a. Cut spade terminal ends from switch wires.
b. Install the supplied spade terminals on each of the 4 wire ends.
c. Connect supplied extensions to wires and connect to terminals.
i. Connect the oil switch wires to terminals 1 and 2 on terminal
plug “12DE34”.
ii. Connect the water in exhaust switch wires to terminals 3 and 4
on terminal plug “12DE34”.
10. Connect moisture alarm probe wires to terminals J and K on terminal
plug “56JK78”.
Note: If Electrols is part of a VSC or MPC, refer to “VSC or
MPC Manual” for further installation instructions.
11. Connect remote switch wires to terminal plug “FGH”.
a. Connect switch wire to F.
b. Connect light wire to G.
c. Connect common wire to H.
Page 11
BISON
1 Phase Gray Box Electrols
Note: Gray Box Electrols have several variations
Remote Switch Wires
R1, R2, RL
Power Source Wires
L1, L2, GND
Moisture Probe Wires
P1, P2
Motor Wires 2T1, 4T2
Motor Ground
Cord Grip
Install Power
Source Wires
Install Motor
Wires
Connect Remote
Switch to “FGH”
Connect Moisture
Alarm Probe to “JK”
S1 Electrols
Connect Water in
Exhaust to “3 4”
Connect Oil
Switch to “1 2”
Bison Reservoir Switches
Oil Switch
Water in Exhaust Switch
Motor Ground Lug
S1 Electrols
Mounting Holes (4)
Cover Screws (4)