Purchasing Department
525 Buena Vista SE
Bldg A, Room #128
Albuquerque, NM 87106
(505) 224-4546
Amendment/Addendum # 3
DATE:
TO:
FROM:
SUBJECT:
Friday, January 18, 2013
All Bidders of Record
Greg Van Wart, CNM Sr. Buyer
Amendment/Addendum #3 to T-2852 “Mechanical System Water Treatment”.
This addendum becomes part of the Contract Documents.
Bidders are required to acknowledge receipt of this addendum in the space provided on
page 14, Section E.1.
Changes, Additions and Clarifications as follows:
QUESTION: What is the tonnage of refrigeration of each of the cooling tower systems?
ANSWER: SEE ATTACHMENT
QUESTION: What months of the year does each cooling tower system operate?
ANSWER: SEE ATTACHMENT
QUESTION: Please clarify whether the closed loops, geothermal loops, and glycol loop are to be
tested twice per month or once per month.
ANSWER: TEST ONCE PER MONTH
QUESTION: Are the closed loops, geothermal loops, and glycol loop to be tested only during
operation (circulation) or every month?
ANSWER: TEST ONCE PER MONTH
QUESTION: What is the glycol concentration required by the equipment manufacturer?
ANSWER: 35%
QUESTION: The way the bid is written the water treatment contractor is required to maintain
corrosion inhibitor and/or glycol in the closed loops when fluid is lost from the systems. What
exclusions to this requirement are there if a system leaks? It is unreasonable to expect the water
treatment contractor to maintain corrosion inhibitor and glycol concentration no matter how
much each system leaks.
ANSWER: THE CONTRACTOR SHALL NOTIFY CNM WHENEVER A LEAK IS
OBSERVED IN ANY OF THE SYSTEMS COVERED UNDER THIS CONTRACT. CNM
WILL ADDRESS THE LEAK WITHIN FOURTEEN DAYS. IF THE LEAK PERSISTS, CNM
T-2852 Amendment #3
1
WILL REIMBURSE THE CONTRACTOR FOR THE COST OF ADDITIONAL WATER
TREATMENT CHEMICAL REQUIRED TO RETURN SYSTEM TO NORMAL LEVELS OF
CONCENTRATION.
QUESTION: #22-Main Campus Condenser. Is this a cooling tower system or closed loop?
ANSWER: REVISE ITEM #22 TO READ AS FOLLOWS, “Main Campus/Jeanette Stromberg
Hall – H.W.S. / 1 ea. CH.W.S. w/ Cooling Tower, 1 ea. CH.W.S. (air-cooled)
If a cooling tower system, what is tonnage of refrigeration? SEE ATTACHMENT.
NOTE: Due date and time has been Extended to January 29, 2013 at 3:00PM
T-2852 Amendment #3
2
WTR SYSTEM DATA.xlsx
MARK
CAMPUS/BUILDING/SYSTEM
CHILLED WTR
HEAT PUMP TONS
TONS (COOLING (EVAPORATIVE
FLUID COOLER)
TWR.)
1. Main Campus/East Building – Primary/secondary H.W.S. including, A Bldg, S Bldg., East
Bldg./CH.W.S, 1ea. Cooling Tower, 1ea. Evaporative Fluid Cooler (LSA Bldg. heat pump loop
and H.W.S. system above)
97
2. Main Campus/Max Salazar Hall, H.W.S./CH.W.S. and Cooling Tower
200
3. Main Campus/Trades Building (east) - H.W.S.
~
HP-1
BTU
TON
EACH
TOTALS
52000
4.33
8 34.66667
HP-2
44000
3.67
1 3.666667
HP-3
44000
3.67
1 3.666667
42
~
~
42
~
~
5. Main Campus/Smith Brasher Hall - H.W.S./CH.W.S. and Cooling Tower.
120
~
6. Main Campus/Student Services Building - H.W.S./CH.W.S. and Cooling Tower
244
~
7. Main Campus/Ken Chappy Bldg. - H.W.S./CH.W.S. and Cooling Tower.
113
~
8. Main Campus/Student Resource Bldg. - H.W.S./CH.W.S. and Cooling Tower
598
~
9. JMMC/G Building - H.W.S.
~
~
10. JMMC/H Building – unit-mounted Boiler Glycol System
~
~
11. JMMC/I-Building - H.W.S., C.H.W.S.
~
~
12. JMMC/J Building - H.W.S.
~
~
4. Main Campus/L-Building - H.W.S
13. JMMC/K Building - H.W.S.
~
~
14. South Valley Campus/SV2 Bldg. - H.W.S./CH.W.S.
~
~
15. ATC Campus/ATC Bldg. - H.W.S./CH.W.S., Cooling Tower
230
~
16. ATC Campus/CTS Bldg./South System - H.W.S./CH.W.S., Cooling Tower
326
~
17. ATC Campus/CTS Bldg./North System - H.W.S./CH.W.S., Cooling Tower
250
~
18. Westside Campus/MJG Bldg. - H.W.S./CH.W.S. and Cooling Tower
320
~
19. Westside Campus/PH II Bldg. - H.W.S./CH.W.S. and Cooling Tower
200
~
20. Workforce Training Center - H.W.S./CH.W.S.
~
~
21. Rio Rancho Campus/one Bldg. – Closed-loop ground-source heat pump.
~
~
245
~
23. JMMC/Tom Wiley Hall - H.W.S.
~
~
23. Westside Campus/Phase I – Closed-loop ground-source heat pump.
~
~
22. Main Campus/Jeanette Stromberg Hall - Main Campus Condenser, H.W.S./2 ea.
CH.W.S.