Hydramaster cds heat exchangers

Cleanworks

Member
Joined
Oct 22, 2012
Messages
11,022
Location
New Westminster,BC
Credits
15,159
Points
15,159
Name
Ron Marriott
So I picked up this little astro van with a cds 4.2 in it and am slowly bringing it up to spec. It wasn't producing a lot of heat initially so I back flushed the cooling system and heat exchangers. I have a pair of extra heat exchangers from an old cds and am wondering if it would be beneficial to add one or both to the existing system. I know it won't give me higher heat but am thinking it will sustain more heat through a large flow tool like a zipper. Any thoughts?
 

The Great Oz

Member
Joined
Nov 25, 2006
Messages
3,770
Location
seattle
Credits
601
Points
601
Name
bryan
Three tube-type exchangers is usually the max for that unit, or two tubes and an exhaust exchanger for higher heat. Probably not needed unless you plan on cleaning high grunge commercial carpet without using any prescrub or rotary extraction.
 

Hack Attack

Member
Joined
Dec 19, 2017
Messages
1,534
Location
further south than you
Credits
3,815
Points
3,815
Name
Dan
I know nothing of the unit you're running.

But what flow tool are you running on it?

Would slightly upping the flow give you more of the heat its already making?
 

Cleanworks

Member
Joined
Oct 22, 2012
Messages
11,022
Location
New Westminster,BC
Credits
15,159
Points
15,159
Name
Ron Marriott
I know nothing of the unit you're running.

But what flow tool are you running on it?

Would slightly upping the flow give you more of the heat its already making?
Normally, these units run a 6 flow but it couldn't keep up at first. Now that I have flushed everything, it's better but thinking it will run out of heat using a zipper or rotary tool. I will try Bryan's advice and try adding the third exchanger and see how it goes. If I remember right, I believe hydramaster had a 3rd exchanger on some units as an option.
 
Joined
Jan 21, 2008
Messages
630
Location
Colorado Springs
Credits
232
Points
232
Name
Brad Gouveia
Three tube-type exchangers is usually the max for that unit, or two tubes and an exhaust exchanger for higher heat. Probably not needed unless you plan on cleaning high grunge commercial carpet without using any prescrub or rotary extraction.
I had an old Dodge with 3 exchangers in it. I found out that like he said most have only 2. 3 is not very common. I could not tell a difference between 2 and 3.
 

Cleanworks

Member
Joined
Oct 22, 2012
Messages
11,022
Location
New Westminster,BC
Credits
15,159
Points
15,159
Name
Ron Marriott
I had an old Dodge with 3 exchangers in it. I found out that like he said most have only 2. 3 is not very common. I could not tell a difference between 2 and 3.
Temperature will be the same. I am hoping I can stay on the trigger longer with tools like the Zipper and rotovac and still maintain the same heat
 
Joined
Jun 20, 2016
Messages
2,169
Location
Bc
Credits
3,143
Points
3,143
Name
Jeff T
Today I was getting 205 at the truck. Getting better now that all the gunk is cleaned out.
Another option Ron, go to HD, and get the 6’ long, foam pipe insulation. Run that from the truck to the door. You’d be surprised at the heat gain. Especially if your running Goodyear type hose. I run it on all jobs longer than 150’. From the truck to the door. Sometimes even 20-30’ in on commercial. It gives me a 8-10 degree increase ATW. Every bit helps. Just try it, they are like 2$....
 
Joined
Jun 20, 2016
Messages
2,169
Location
Bc
Credits
3,143
Points
3,143
Name
Jeff T
Another option Ron, go to HD, and get the 6’ long, foam pipe insulation. Run that from the truck to the door. You’d be surprised at the heat gain. Especially if your running Goodyear type hose. I run it on all jobs longer than 150’. From the truck to the door. Sometimes even 20-30’ in on commercial. It gives me a 8-10 degree increase ATW. Every bit helps. Just try it, they are like 2$....
And more instant heat on long runs. I’m ordering some Cobb’s. I’ll let you know how it works.
 

Top