ESBD_518257_1780961950815_IW238057-A - Amendment No. 1.pdf

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2 Financial Plaza, Suite 703

Huntsville, Texas 77340

(936) 437-3885 www.tdcj.texas.gov

T e x a s D e p a r t m e n t o f C r i m i n a l J u s t i c e

Bobby Lumpkin Executive Director

Contracts and Procurement Department

AMENDMENT No. 1

BID NO.: IW238057-A

PURCHASER / CONTRACT SPECIALIST: Teria Godwin-Pierce BID OPENING DATE & TIME: 06/16/202 at 03:00PM

The purpose of this amendment is to provide answers to questions.

Reference attached pages of this amendment.

IN THE SUBMISSION OF BID, BIDDER MUST ACKNOWLEDGE RECEIPT OF THIS

AMENDMENT; OTHERWISE, THE BID MAY NOT BE GIVEN CONSIDERATION.

BIDDER MAY ACKNOWLEDGE RECEIPT ON FACE OF BID OR BY RETURNING

ONE COPY OF THIS NOTICE.

SIGNED:

BIDDER

COMPANY NAME:

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Amendment No. 1 Bid No.: IW238057-A

Question

No.

Question

Answer

1 Are the solicitations IW246660 (TDCJ - Allred Unit - Procurement of an HVAC System) and IW246649 (TDCJ - Allred Unit - Procurement of a HVAC Unit) different bids or are they the same project? Also, is the scope for the projects the same as they are both around 45-ton packaged units?

The two solicitations you are inquiring are IW 238057-A AND IW246648.

The Hilltop Unit will need one 25 ton and one 30 ton.

The bid should state 1 ea 25 ton (in the front – IW238057-A) and 1 ea 30 ton (in the back - IW246648).

In total there should be 2 split-systems.

2 Are any plans, specs, scope of work, etc.

available for this project?

The are none available and a site visit was provided.

3 Is the existing split system 2 pipe or 4 pipe?

2 Pipe Refrigerant 2 Pipe Water

4 To confirm - the voltage for both of the units will be 230V?

Yes

5 To confirm - no new concreate will need to be poured as the unit will need to fit on existing concrete pad?

Depends on the size of the unit that is being offered, but vendor will be responsible for adding concrete.

6 Will a transition curb and curb insulation need to be furnished by the vendor?

There will need to be a transition going from the unit to the duct work.

7 To confirm - will the heat for the air handler be hot water?

Yes.

8 Are there any plans or specs for the listed hot water coil such as:

Tube/fin material?

Dimensions (fin H/L, thickness)?

Airflow

FPI

Total face area

The plans and specs for the hot water coils is provided by the model number 1HW0406 that is on the solicitation.

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9 What or the performance conditions for the condensing and air handling unit including: OA cfm supply, cooling EAT (DB + WB), LAT (DB + WB), Heating EAT (DB) and ESP at sea level?

10 What is the heating input capacity regarding heat for the AHU?

314.9 mbh

11 What is the voltage for the AHU as 208, 230, and 480 volts are all listed?

208/230

12 What re the specifications for the VFD and what is its voltage as it is listed as 208, 230 and 480 volts?

3 Phase / 60 HZ / 7.5 V / 32.4 Amps Frequency Range: D-599 Hz 208/230

13 Multiple model numbers are listed; what is the manufacturer for each other than the full split system mentioned at top of the specifications named as manufactured by York?

Yes, they are all manufactured by York.

14 Are hail guards required for the outdoor unit?

15 Are coil coatings required?

16 What is the coil/fin/tube material for these in the outdoor/condensing unit?

Aluminum.

17 Is a disconnect required for the condensing unit and will it need to come will a circuit breaker?

18 Is a phase monitor required for the condensing unit?

Yes, please follow the requirements that are necessary regarding model numbers of the requested equipment that are on page 7 of the solicitation.

19 Is low ambient required for the condensing unit?

Yes, please follow the requirements that are necessary regarding model numbers of the requested equipment that are on page 7 of the solicitation.

20 To confirm - there will be no condensate drain pain factory installed? Will a field installed kit be required?

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21 When an electrical damper is mentioned, what equipment/accessory does this call for, is it referring to an economizer or motorized outside air damper?

Motorized Air Damper.

22 Can you define manufacturers' recommendations, for this specific job or just very general recommendations?

Manufacturers’ recommendations are provided by the manufacturer, we do not define those definitions.

23 Will any specific insulation regarding piping, duct work or the unit itself need to be provided or is standard unit insulation sufficient?

Proper installation of lines and ductwork are required.

24 When "horizontal supply/return with side flow" is mentioned, is this referring to the condensing unit, air handler or both?

Air handler.

25 Does the air handler have a vertical or horizontal airflow configuration (for supply, return, both or a mixture)?

Horizontal.

26 Does the condensing unit/outdoor unit have a vertical or horizontal airflow configuration (for supply, return, both or a mixture)?

Pulls air from sides and up and out to cool condensing coils. The exterior unit has vertical flow.

27 Will refrigerant piping be re-used, or does there need to be new piping?

All new piping required.

28 Will temperature be controlled off of a space sensor, or should it be controlled based off of return air temperature?

Based off return air temp.

29 What does access look like for where the existing unit will be removed, and new units be moved into the building? Can any pictures be provided?

No pictures will be provided, a site visit was held for vendor observations.

Access will be provided by gate on TDCJ property.

30 Can any pictures be provided of the unit and surrounding room?

No pictures will be provided, a site visit was held for vendors.

31 To confirm - is this a different solicitation with different specs and vendor requirements than solicitation TDCJ - Hilltop Unit - HVAC Split System (IW246648)?

Please refer to question 1.

32 Are we reusing or replacing existing fused disconnect for condenser and

AHU?

Replacing.

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33 Are we reusing the existing copper lines and flushing them with RX11 flush or are we replacing the copper line? TDCJ normally requires refrigerant lines to be replaced and size per manufactures recommendations.

Replacing.

34 Will R32 refrigerant be acceptable? No, only R545B 35 What are TDCJ business hours? 0600 – 1700 M - F 36 Will the new equipment require factory start-up, or can it be done by a factory authorized contractor

Can be done by Factory Authorized contractor.

37 Will the existing shut-off valves for the hot water supply and return water lines need to be replaced or will TDCJ replace ISO valves if they don’t hold/seal?

Yes – replace.

38 Do we need to provide new 3-way valves, y-strainers, thermometers, pressure gauges and flew connectors for hot water supply and return lines?

Yes – replace

39 After reviewing the site we noted that they are existing solenoid valves on the refrigeration lines. Will these be reused, or will they need to be replaced as well?

Replaced.

40 Is there any existing specs, model numbers of serial numbers for the existing unit and could they be provided?

Please reference the solicitation for the requested specifications.

41 What refrigerant will be used in the new system?

R454B

42 What are the existing refrigerant line sizes, routing, and approximate line lengths?

This information will be provided to the awarded bidder as well as a site visit was held to observe these dimensions.

43 What is the existing hot-water pipe size and connection orientation?

2” DIA Pipe - Horizontal

44 What are the entering and leaving water temperatures?

Please follow the requirements that are necessary regarding model numbers of the requested equipment that are on page 7 of the solicitation.

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45 Are control valves, actuators, strainers, balancing valves, unions, or piping specialties included in the scope?

Yes

46 Are there existing controls, BAS, or interlocks that the new unit must connect to?

No

47 What are the required MCA and MOCP values for both indoor and outdoor equipment?

Indoor:

MCA – 28.0 A

MOCP – 45 AMP

MCA – 103 AMP

Outdoor:

MOCP – 125 AMP

48 Is the HACR circuit breaker/disconnect to be factory furnished, field furnished, or existing/reused?

Factory Furnished

49 Does the thermostat need BACnet, Modbus, remote sensor capability, lockable cover, or BAS integration?

Lockable Cover