RE: [EXTERNAL] Re: Ice Build-up on Linear Heat Detection for Double Interlock Pre-Action Sprinkler System

2019-09-04 Thread Prahl, Craig/GVL via Sprinklerforum 
If there is a fire in that area, how long do you think the ice would remain on 
the LHD?

LHD is used on outside installations for activation of deluge systems in tank 
farms or around equipment.  In those conditions, it is very likely that ice 
will form on the it.  It’s a non-issue.

Have you called Protect-O-Wire and talked to anyone there?  That would have 
been my first stop.

Craig Prahl | Jacobs | Group Lead/SME – Fire Protection | 864.676.5252 | 
craig.pr...@jacobs.com<mailto:craig.pr...@jacobs.com> | 
www.jacobs.com<http://www.jacobs.com/>
1041 East Butler Road   Greenville, South Carolina  29606

From: Sprinklerforum  On Behalf 
Of Ben Young via Sprinklerforum
Sent: Tuesday, September 3, 2019 9:37 PM
To: sprinklerforum@lists.firesprinkler.org
Cc: Ben Young ; Mario Berrios 
Subject: [EXTERNAL] Re: Ice Build-up on Linear Heat Detection for Double 
Interlock Pre-Action Sprinkler System

If there's condensation on the LHD, is there also condensation on the sprinkler 
piping and or the structure?

The correct way to fix this problem is for the owner to build a vestibule or to 
use forced air blowers to keep the warm air out.

Benjamin Young


On Tue, Sep 3, 2019 at 8:46 AM Mario Berrios via Sprinklerforum 
mailto:sprinklerforum@lists.firesprinkler.org>>
 wrote:
UV/IR detectors?


-Original Message-
From: Fpdcdesign via Sprinklerforum 
mailto:sprinklerforum@lists.firesprinkler.org>>
To: Sprinklerforum 
mailto:sprinklerforum@lists.firesprinkler.org>>
Cc: Fpdcdesign mailto:fpdcdes...@gmail.com>>; Matt Grise 
mailto:m...@afpsprink.com>>
Sent: Tue, Sep 3, 2019 7:47 am
Subject: Re: Ice Build-up on Linear Heat Detection for Double Interlock 
Pre-Action Sprinkler System
Could the LHD be moved away from the door?

Todd G Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860-535-2080 (ofc)
860-553-3553 (fax)
860-608-4559 (cell)



On Sep 3, 2019 at 7:25 AM, mailto:sprinklerforum@lists.firesprinkler.org>> wrote:

Could you use a different type of detector near the doors that would be easier 
to de-ice or more tolerant of ice buildup? Maybe a pilot detector head? It 
could be changed out more easily as ice builds up.



Matt





From: Sprinklerforum 
mailto:sprinklerforum-boun...@lists.firesprinkler.org>>
 On Behalf Of Russell Gregory via Sprinklerforum
Sent: Tuesday, September 03, 2019 4:44 AM
To: 
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Cc: Russell Gregory mailto:rcgreg...@snap.net.nz>>
Subject: Ice Build-up on Linear Heat Detection for Double Interlock Pre-Action 
Sprinkler System



We have a problem with ice forming on LHD cable inside a Coldstore at the 
access doors. The LHD is “Protectowire” and is used as the first detection for 
a Double Interlock Pre Action system. The Coldstore temperature is -10⁰C.

  1.  Is there any way to reduce or prevent this condensing water vapour from 
freezing on to the LHD? Would spraying the cable with silicone spray be helpful?
  2.  Is there a practical method of removing the ice at say 1 – 3 monthly 
intervals? Spraying de-icing fluid comes to mind but as it is in a frozen food 
warehouse that may have a contamination problem although all products are 
cartoned and wrapped.

I have checked FM and Manufacturers Data sheets but have not found reference to 
external ice loading.

VESDA recommend the application of silicone spray so wonder if this would help.



Any thoughts would be appreciated.

Regards,

Russell



Russell A Gregory

Special Projects Engineer

Johnson Controls

Wormald Christchurch

New Zealand



Ph xx64 3 338 4853



e-mail; rcgreg...@snap.net.nz<mailto:rcgreg...@snap.net.nz>




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Re: Ice Build-up on Linear Heat Detection for Double Interlock Pre-Action Sprinkler System

2019-09-03 Thread Ben Young via Sprinklerforum 
If there's condensation on the LHD, is there also condensation on the
sprinkler piping and or the structure?

The correct way to fix this problem is for the owner to build a vestibule
or to use forced air blowers to keep the warm air out.

Benjamin Young


On Tue, Sep 3, 2019 at 8:46 AM Mario Berrios via Sprinklerforum <
sprinklerforum@lists.firesprinkler.org> wrote:

> UV/IR detectors?
>
>
> -Original Message-
> From: Fpdcdesign via Sprinklerforum <
> sprinklerforum@lists.firesprinkler.org>
> To: Sprinklerforum 
> Cc: Fpdcdesign ; Matt Grise 
> Sent: Tue, Sep 3, 2019 7:47 am
> Subject: Re: Ice Build-up on Linear Heat Detection for Double Interlock
> Pre-Action Sprinkler System
>
> Could the LHD be moved away from the door?
>
> Todd G Williams, PE
> Fire Protection Design/Consulting
> Stonington, CT
> 860-535-2080 (ofc)
> 860-553-3553 (fax)
> 860-608-4559 (cell)
>
>
> On Sep 3, 2019 at 7:25 AM,  > wrote:
>
> Could you use a different type of detector near the doors that would be
> easier to de-ice or more tolerant of ice buildup? Maybe a pilot detector
> head? It could be changed out more easily as ice builds up.
>
>
>
> Matt
>
>
>
>
>
> *From:* Sprinklerforum  *On
> Behalf Of *Russell Gregory via Sprinklerforum
> *Sent:* Tuesday, September 03, 2019 4:44 AM
> *To:* sprinklerforum@lists.firesprinkler.org
> *Cc:* Russell Gregory 
> *Subject:* Ice Build-up on Linear Heat Detection for Double Interlock
> Pre-Action Sprinkler System
>
>
>
> We have a problem with ice forming on LHD cable inside a Coldstore at the
> access doors. The LHD is “Protectowire” and is used as the first detection
> for a Double Interlock Pre Action system. The Coldstore temperature is
> -10⁰C.
>
>1. Is there any way to reduce or prevent this condensing water vapour
>from freezing on to the LHD? Would spraying the cable with silicone spray
>be helpful?
>2. Is there a practical method of removing the ice at say 1 – 3
>monthly intervals? Spraying de-icing fluid comes to mind but as it is in a
>frozen food warehouse that may have a contamination problem although all
>products are cartoned and wrapped.
>
> I have checked FM and Manufacturers Data sheets but have not found
> reference to external ice loading.
>
> VESDA recommend the application of silicone spray so wonder if this would
> help.
>
>
>
> Any thoughts would be appreciated.
>
> Regards,
>
> Russell
>
>
>
> Russell A Gregory
>
> Special Projects Engineer
>
> Johnson Controls
>
> Wormald Christchurch
>
> New Zealand
>
>
>
> Ph xx64 3 338 4853
>
>
>
> e-mail; *rcgreg...@snap.net.nz *
>
>
>
>
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Re: Ice Build-up on Linear Heat Detection for Double Interlock Pre-Action Sprinkler System

2019-09-03 Thread Mario Berrios via Sprinklerforum 
UV/IR detectors?


-Original Message-
From: Fpdcdesign via Sprinklerforum 
To: Sprinklerforum 
Cc: Fpdcdesign ; Matt Grise 
Sent: Tue, Sep 3, 2019 7:47 am
Subject: Re: Ice Build-up on Linear Heat Detection for Double Interlock 
Pre-Action Sprinkler System

Could the LHD be moved away from the door?#yiv4117383938 
#yiv4117383938edo-signature img {max-width:90%;}
Todd G Williams, PEFire Protection Design/ConsultingStonington, CT860-535-2080 
(ofc)860-553-3553 (fax)860-608-4559 (cell)


On Sep 3, 2019 at 7:25 AM,  wrote:


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Could you use a different type of detector near the doors that would be easier 
to de-ice or more tolerant of ice buildup? Maybe a pilot detector head? It 
could be changed out more easily as ice builds up.
 
  
 
Matt 
 
  
 
  
 
From: Sprinklerforum On Behalf 
Of Russell Gregory via Sprinklerforum
Sent: Tuesday, September 03, 2019 4:44 AM
To: sprinklerforum@lists.firesprinkler.org
Cc: Russell Gregory 
Subject: Ice Build-up on Linear Heat Detection for Double Interlock Pre-Action 
Sprinkler System
 
  
 
We have a problem with ice forming on LHD cable inside a Coldstore at the 
access doors. The LHD is “Protectowire” and is used as the first detection for 
a Double Interlock Pre Action system. The Coldstore temperature is -10⁰C.

   - Is there any way to reduce or prevent this condensing water vapour from 
freezing on to the LHD? Would spraying the cable with silicone spray be helpful?
   - Is there a practical method of removing the ice at say 1 – 3 monthly 
intervals? Spraying de-icing fluid comes to mind but as it is in a frozen food 
warehouse that may have a contamination problem although all products are 
cartoned and wrapped.
 
I have checked FM and Manufacturers Data sheets but have not found reference to 
external ice loading.
 
VESDA recommend the application of silicone spray so wonder if this would help.
 
  
 
Any thoughts would be appreciated.
 
Regards,
 
Russell
 
  
 
Russell A Gregory
 
Special Projects Engineer
 
Johnson Controls
 
Wormald Christchurch
 
New Zealand
 
  
 
Ph xx64 3 338 4853
 
  
 
e-mail; rcgreg...@snap.net.nz
 
  
 
  
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Re: Ice Build-up on Linear Heat Detection for Double Interlock Pre-Action Sprinkler System

2019-09-03 Thread Fpdcdesign via Sprinklerforum 
  
  

 Could the LHD be moved away from the door?
  
  
  
 Todd G Williams, PE  
Fire Protection Design/Consulting
  
Stonington, CT
  
860-535-2080 (ofc)
  
860-553-3553 (fax)
  
860-608-4559 (cell)
  
  
  
  

  
  
>   
> On Sep 3, 2019 at 7:25 AM,   (mailto:sprinklerforum@lists.firesprinkler.org)>  wrote:
>   
>   
> 
>   
>
> Could you use a different type of detector near the doors that would be 
> easier to de-ice or more tolerant of ice buildup? Maybe a pilot detector 
> head? It could be changed out more easily as ice builds up.
>
>   
>
>   
>
>   
>   
>
> Matt 
>
>   
>
>   
>
>   
>   
>
>   
>
>   
>   
>   
>
> From:  Sprinklerforum On 
> Behalf Of  Russell Gregory via Sprinklerforum
>   Sent:  Tuesday, September 03, 2019 4:44 AM
>   To:  sprinklerforum@lists.firesprinkler.org
>   Cc:  Russell Gregory  
>   Subject:  Ice Build-up on Linear Heat Detection for Double Interlock 
> Pre-Action Sprinkler System
>
>   
>   
>   
>
>   
>
>   
>
> We have a problem with ice forming on LHD cable inside a Coldstore at the 
> access doors. The LHD is “Protectowire” and is used as the first detection 
> for a Double Interlock Pre Action system. The Coldstore temperature is -10⁰C.
>
>   
>   
> Is there any way to reduce or prevent this condensing water vapour from 
> freezing on to the LHD? Would spraying the cable with silicone spray be 
> helpful?
>   
> Is there a practical method of removing the ice at say 1 – 3 monthly 
> intervals? Spraying de-icing fluid comes to mind but as it is in a frozen 
> food warehouse that may have a contamination problem although all products 
> are cartoned and wrapped.
>   
>   
>
> I have checked FM and Manufacturers Data sheets but have not found reference 
> to external ice loading.
>
>   
>
> VESDA recommend the application of silicone spray so wonder if this would 
> help.
>
>   
>
>   
>
>   
>
> Any thoughts would be appreciated.
>
>   
>
> Regards,
>
>   
>
> Russell
>
>   
>
>   
>
>   
>
> Russell A Gregory
>
>   
>
> Special Projects Engineer
>
>   
>
> Johnson Controls
>
>   
>
> Wormald Christchurch
>
>   
>
> New Zealand
>
>   
>
>   
>
>   
>
> Ph xx64 3 338 4853
>
>   
>
>   
>
>   
>
> e-mail;  rcgreg...@snap.net.nz (mailto:rcgreg...@snap.net.nz)
>
>   
>
>   
>
>   
>
>   
>
>   
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RE: Ice Build-up on Linear Heat Detection for Double Interlock Pre-Action Sprinkler System

2019-09-03 Thread Matt Grise via Sprinklerforum 
Could you use a different type of detector near the doors that would be easier 
to de-ice or more tolerant of ice buildup? Maybe a pilot detector head? It 
could be changed out more easily as ice builds up.

Matt


From: Sprinklerforum  On Behalf 
Of Russell Gregory via Sprinklerforum
Sent: Tuesday, September 03, 2019 4:44 AM
To: sprinklerforum@lists.firesprinkler.org
Cc: Russell Gregory 
Subject: Ice Build-up on Linear Heat Detection for Double Interlock Pre-Action 
Sprinkler System

We have a problem with ice forming on LHD cable inside a Coldstore at the 
access doors. The LHD is “Protectowire” and is used as the first detection for 
a Double Interlock Pre Action system. The Coldstore temperature is -10⁰C.

  1.  Is there any way to reduce or prevent this condensing water vapour from 
freezing on to the LHD? Would spraying the cable with silicone spray be helpful?
  2.  Is there a practical method of removing the ice at say 1 – 3 monthly 
intervals? Spraying de-icing fluid comes to mind but as it is in a frozen food 
warehouse that may have a contamination problem although all products are 
cartoned and wrapped.
I have checked FM and Manufacturers Data sheets but have not found reference to 
external ice loading.
VESDA recommend the application of silicone spray so wonder if this would help.

Any thoughts would be appreciated.
Regards,
Russell

Russell A Gregory
Special Projects Engineer
Johnson Controls
Wormald Christchurch
New Zealand

Ph xx64 3 338 4853

e-mail; rcgreg...@snap.net.nz


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