How to Winterize Your Camper

When storing your Northern Lite truck camper through periods of freezing weather, in an unheated environment, it will be necessary to winterize the water system. Damage to water system components will result if the proper winterization steps are not taken.

Winterizing procedures for
9-6 SE AND 8-11 EX SE campers

A

Winter- Open
Summer- Close

1 of 3
B

Winter- Close
Summer- Open

2 of 3
F

End Cap

3 of 3
Fig #1
C

Fresh Tank Drain

Winter- Open

Summer- Close

1 of 5
D

Cold Low Point Drain

Open to drain for winter then close.

Once drained for summer keep closed.

2 of 5
E

Open Hot Low Point

Drain then close once drained.

For summer, keep closed.

3 of 5
G

Gray Tank Drain

4 of 5
H

Black Tank Drain

5 of 5
Fig #2 - 9-6Q Driver's Side Back
C

Fresh Tank Drain

Winter- Open

Summer- Close

1 of 5
D

Cold Low Point Drain

Open to drain for winter then close.

Once drained for summer keep closed.

2 of 5
E

Open Hot Low Point

Drain then close once drained.

For summer, keep closed.

3 of 5
G

Gray Tank Drain

4 of 5
H

Black Tank Drain

5 of 5
Fig #3 - 8-11 EX Driver side back
A

Close for Winter

Open for Summer

1 of 3
B

Close for Winter

Open for Summer

2 of 3
C

Open for Winter

Close for Summer

3 of 3
Fig #4 - Located under the bench seat
A

Drain

1 of 2
B

Pressure Relief Valve

2 of 2
Fig #5 - Located on driver side exterior

Winterization Steps

1

Drain fresh tank. Open valve “C” on (Fig# 2) and leave open, shown closed in (Fig#2)

2

Open cold low point drain valve “D” (Fig#2) close, once drained, shown closed in
(Fig#2)

3

Open hot low point valve “E” Fig#2 close once drained. Shown closed in (Fig #2)

4

Close valve “B” water tank supply (Fig #1). Shown closed.

5

Open valve “A” and remove cap “F” and connect clear flex line (Fig#6) and put other
end into 1 gallon jug of RV Antifreeze (Fig#7).

6

Bypass hot water tank (Fig #4) close valve “A” & “B” for winter (Fig#4) Open valve “C” for winter (Fig#4).

7

Drain hot water tank from outside by removing drain plug (A), open pressure relief valve (B) when draining (Fig#5). On Suburban heaters the plug is metal, on Atwood Dometic heaters the plug is white plastic.

8

Turn water pump on and turn kitchen faucet on hot then cold until antifreeze comes out . In bathroom turn each tap on until antifreezes comes out and then pull up shower diverter until antifreeze comes out shower end. Flush toilet until antifreeze comes out. Turn outside shower on cold first until antifreeze comes out then hot until antifreeze comes out.

9

Pour 1 cup of antifreeze down each drain including the floor drain in the shower.

10

Drain black and gray tanks.

11

Your unit is now winterized!

Fig #6 - Clear flex line
Fig #7 - Antifreeze

Winterizing procedures for 10-2 EX

C

Winter- Open
Summer- Close

1 of 8
D

Cold Low Point Drain

 

Open to drain for winter then close once drained.

 

For summer, keep closed.

2 of 8
E

Hot Low Point Drain

 

Open to drain for winter then close once drained.

 

For summer, keep closed.

3 of 8
F

End Cap

4 of 8
G

Gray Tank Drain

5 of 8
H

Black Tank Drain

6 of 8
I

Black Tank Drain

7 of 8
J

Black Tank Drain

8 of 8
Fig #1
A

Winter- Close
Summer- Open

1 of 3
C

Winter- Close
Summer- Open

2 of 3
B

Winter- Open
Summer- Close

3 of 3
Fig #4 - To access, remove panel under bench seat closest to cab over bed.
A

Drain

1 of 2
B

Pressure relief valve

2 of 2
Fig #5
Fig #6 - Clear flex line

Winterization Steps

1

Drain black and gray tanks ,G&H

2

Drain fresh tank. Open valve “C” on (Fig# 2) and leave open, shown open in (Fig#2)

3

Open cold low point drain valve “E” (Fig#1) close, once drained, shown closed in (Fig#1)

4

Open hot low point valve “D” Fig #1 close once drained. Shown closed in (Fig #1)

5

Close valve “I” water tank supply (Fig #1) shown closed

6

Open valve “J” and remove cap “F” and connect clear flex line (Fig#6)and put other end into 1 gallon jug of RV Antifreeze (Fig#7).

7

By Pass hot water tank (Fig #4) close valve “A” & “C” for winter (Fig#4) Open valve “B” for winter (Fig#4).

8

Drain hot water tank from outside by removing metal drain plug (A), open pressure relief valve (B) when draining (Fig#5). On Atwood Dometic heaters, the drain plug is a white plastic plug.

9

Turn water pump on and turn kitchen faucet on hot then cold until antifreeze comes out . Inbathroom turn each tap on until antifreezes comes out and then pull up shower diverter untilantifreeze comes out shower end. Flush toilet until antifreeze comes out. Turn outside shower oncold first until antifreeze comes out then hot until antifreeze comes out

10

Pour 1 cup of antifreeze down each drain including the floor drain in the shower.

11

Your unit is now winterized!

Fig #7 - Antifreeze

Winterizing procedures for
Older 10-2 EX & 8-11Q campers

A

Winter- Open
Summer- Close

1 of 8
B

Winter- Open
Summer- Close

2 of 8
C

Winter- Open
Summer- Close

3 of 8
D

Cold Low Point Drain

 

Open to drain for winter then close once drained.

 

For summer, keep closed.

4 of 8
E

Hot Low Point Drain

 

Open to drain for winter then close once drained.

 

For summer, keep closed.

5 of 8
F

End Cap

6 of 8
G

Gray Tank Drain

7 of 8
H

Black Tank Drain

8 of 8
Fig #1 - Driver's side rear of camper
A

Winter- Close
Summer- Open

1 of 3
B

Winter- Close
Summer- Open

2 of 3
C

Winter- Open
Summer- Close

3 of 3
Fig #2
A

Drain

1 of 2
B

Pressure relief valve

2 of 2
Fig #3

Winterization Steps

1

Drain fresh tank. Open valve “C” and leave open, shown open in Fig#1.

2

Open cold low point drain valve “D” (Fig#1) close once drained, shown closed in
Fig#1.

3

Open hot low point valve “E” (Fig#1) close once drained. Shown closed in Fig #1

4

Close valve “B” water tank supply. Shown closed in Fig #1.

5

Open valve “A” and remove cap “F” and connect clear flex line (Fig#4) and put
other end into 1 gallon jug of RV Antifreeze (Fig#5).

6

Bypass hot water tank (Fig #2) close valve “A & “B” for winter Fig#2 Open valve “C” for winter (Fig#2).

7

Drain hot water tank from outside by removing white plastic drain plug, open pressure relief valve when draining (Fig#3).

8

Turn water pump on and turn kitchen faucet on hot then cold until antifreeze comes out . In bathroom turn each tap on until antifreezes comes out and then pull up shower diverter until antifreeze comes out shower end. Flush toilet until antifreeze comes out. Turn outside shower on cold first until antifreeze comes out then hot until antifreeze comes out.

9

Pour 1 cup of antifreeze down each drain including the floor drain in the shower.

10

Drain black and gray tanks.

11

Your unit is now winterized!

Fig #4 - Clear flex line
Fig #5 - Antifreeze